MT BCB303020 - Battery charger DOMETIC - Free user manual and instructions

USER MANUAL MT BCB303020 DOMETIC

Technical line drawing of an electronic device casing with internal components and mounting holes (no text or symbols)

MT BCB 30/30/20 IU0U, MT BCB 40/40/30 IU0U, MT BCB 60/40/40 IU0U

EN Battery control booster

Installation and Operating Manual.....14

Batterie-Control-Booster

© 2022 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law. The underlying technical design and the products contained herein may be protected by design, patent or be patent pending. The trademarks mentioned in this manual belong to Dometic Sweden AB. All rights are reserved.

Technical diagram of an electronic device with numbered components and wiring labels

2 13 12 11 10 9 8 7 6 5 4 3 2 1

graph TD
    A["Current"] --> B["Batt. I"]
    B --> C["Battery full"]
    C --> D["Main Charging"]
    D --> E["Batt. II"]
    E --> F["Power"]
    G["MTiq Charging Power Centre"] --> H["Display On/Off"]
    style G fill:#f9f,stroke:#333
    style H fill:#ccf,stroke:#333

4 100 mm 100 mm

5 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

15

2. 90° 1. 3.

16

6 i 5 m 1. 2.3 5 m 4. 5 m

17 A

12 V START Com. BORD RD bk rd BORD T T S- S+ TR CI D+ BMS Ntz D+ II 5A I 1 2 3 BORD Pb Gel AcidAGM1 AGM2 LFPROM CLRV CLRV PLRV A Boost A Netz Pusher BMS A V D+ Limit Natz Limit Roo max max

	EN DE FR	IT NL DA SV NO
rd Red Rot	Rouge Rosso	Rood Rød Rød Rød
bk Black	Schwarz Noir	Nero Zwart Sort	Svart Svart

18 B

12 V START Com. BORD RD bk rd BORD T T S- S+ TR CI D+ BMS Ntz D+ 4 5 3 II 5A I 1 2 1 Pb Gel AcidAGM1 AOM2 A Boost A Netz Putser BMS A V Limit Netz Limit Boe max BORD PB GEI SUV SLV LAV ACV A Boost A Netz BMS B D+ max

	EN DE FR	IT NL DA SV NO
rd Red Rot	Rouge Rosso	Rood Rød Rød Rød
bk Black	Schwarz Noir	Nero Zwart Sort	Svart Svairt

19
C1

12 V START Com. BORD RD bk rd BORD T S- S+ TR Cl D+ BMS Ntz D+ D+ +B1 +B2 4 5 6 7 87a ye bg 85 86 30 5A I II + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + -

	EN DE FR	IT NL DA SV NO
rd Red Rot	Rouge Rosso	Rood Rød Rød Rød
bk Black	Schwarz Noir	Nero Zwart Sort	Svart Svairt
vt	Violet	Violett	Violeta	Violetto	Paars	Violet	Violett	Fiolett
ye	Yellow	Gelb	Jaune	Giallo	Geel	Gul	Gul	Gul
og	Orange	Orange	Orange	Arancione	Oranje	Orange	Orange	Oransje
bu	Blue	Blau	Bleu	Blu	Blauw	Blå	Blå	Blå

20 C2

12 V START Com. BORD rd bk rd BORD T T S- S+ TR CI D+ BMS Ntz D+ D+ +B1 +B2 4 ye og 30 87 85 bu bk II + - 2 1 5A I vt 3 BORD Pb LIFePO4 Gel 3.8V ActdAGM1 4.2V AGM2 4.4V < A Boost uf A Netz BMS 8 A B V D+ Limit Netz max Limit Boo max

	EN DE FR	IT NL DA SV NO
rd Red Rot	Rouge Rosso	Rood Rød Rød Rød
bk Black	Schwarz Noir	Nero Zwart Sort	Svart Svairt
vt	Violet	Violett	Violeta	Violetto	Paars	Violet	Violett	Fiolett
ye	Yellow	Gelb	Jaune	Giallo	Geel	Gul	Gul	Gul
og	Orange	Orange	Orange	Arancione	Oranje	Orange	Orange	Oransje
bu	Blue	Blau	Bleu	Blu	Blauw	Blå	Blå	Blå

21 D

12 V START Com. BORD RD bk rd BORD T T S- S+ TR CI D+ BMS Ntz 3 5 37 38 85 86 4 5A II I D+ G 1 2 5A I 1 BORD Pb LiFeMo Gel 3.8V Acid:AGM1 4.2V AGM2 4.4V < A Boost uf A Netz BMS 0.8 A B V D+ Limit Netz max Limit Boo max

	EN DE FR	IT NL DA SV NO
rd Red Rot	Rouge Rosso	Rood Rød Rød Rød
bk Black	Schwarz Noir	Nero Zwart Sort	Svart Svart

22

27574 299

EN

Please read these instructions carefully and follow all instructions, guidelines, and warnings included in this product manual in order to ensure that you install, use, and maintain the product properly at all times. These instructions MUST stay with this product.

By using the product, you hereby confirm that you have read all instructions, guidelines, and warnings carefully and that you understand and agree to abide by the terms and conditions as set forth herein. You agree to use this product only for the intended purpose and application and in accordance with the instructions, guidelines, and warnings as set forth in this product manual as well as in accordance with all applicable laws and regulations. A failure to read and follow the instructions and warnings set forth herein may result in an injury to yourself and others, damage to your product or damage to other property in the vicinity. This product manual, including the instructions, guidelines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit documents.dometic.com.

Contents

Explanation of symbols....14

Safety instructions .....14

Scope of delivery .....17

Accessories 17

Intended use ....17

Technical description .....18

Mounting the battery control booster ..... 22

Connecting the battery control booster.....22

Operation.... 26

Cleaning and maintenance 30

Troubleshooting ....31

Warranty.... 33

Disposal 33

Technical data 34

Explanation of symbols

DANGER!

Safety instruction: Indicates a hazardous situation that, if not avoided, will result in death or serious injury.

WARNING!

Safety instruction: Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

CAUTION!

Safety instruction: Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

NOTICE!

Indicates a situation that, if not avoided, can result in property damage.

NOTE

Supplementary information for operating the product.

Safety instructions

Also observe the safety instructions and stipulations issued by the vehicle manufacturer and authorized workshops.

General safety

WARNING! Failure to obey these warnings could result in death or serious injury.

Electrocution hazard

• Installation and removal of the battery charger may only be carried out by qualified personnel.
• Do not operate the device if it is visibly damaged.
• If this device's power cable is damaged, the power cable must be replaced by the manufacturer, a service agent or a similarly qualified person in order to prevent safety hazards.
• This device may only be repaired by qualified personnel. Improper repairs can lead to considerable hazards.
• If you disassemble the device:
• Detach all connections.
• Ensure that no voltage is present on any of the inputs and outputs.
• Do not use the device in wet conditions or submerge in any liquid. Store in a dry place.
• Only use accessories that are recommended by the manufacturer.
• Do not modify or adapt any of the components in any way.

- Disconnect the device from the power supply:

– Before each cleaning and maintenance
- After every use
– Before changing a fuse
– Before carrying out electrical welding work or work on the electrical system

Health hazard

- This device can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the device in a safe way and understand the hazards involved.

• Electrical devices are not toys.

Always keep and use the device out of the reach of very young children.
- Children must be supervised to ensure that they do not play with the device.
- Cleaning and user maintenance shall not be made by children without supervision.

NOTICE! Damage hazard

• Before start-up, check that the voltage specification on the data plate is the same as that of the power supply.
• Ensure that other objects cannot cause a short circuit at the contacts of the device.
• Ensure that the negative and positive poles never come into contact.

Installing the device safely

DANGER! Failure to obey these warnings will result in death or serious injury.

Explosion hazard

- Never mount the device in areas where there is a risk of gas or dust explosion.

CAUTION! Failure to obey these cau-tions could result in minor or moderate injury.

Risk of injury

• Ensure that the device is standing firmly. The device must be set up and fastened in such a way that it cannot tip over or fall down.
• When positioning the device, ensure that all cables are suitably secured to avoid any form of trip hazard.

NOTICE! Damage hazard

• Do not place the battery charger near heat sources (heaters, direct sunlight, gas ovens, etc.).
• Set up the device in a dry location where it is protected against splashing water.

Safety when connecting the device electrically

DANGER! Failure to obey these warnings will result in death or serious injury.

Electrocution hazard

- For installation on boats:

If electrical devices are incorrectly installed on boats, corrosion damage might occur. Have the device installed by a specialist (marine electrician).
- If you are working on electrical systems, ensure that there is somebody close at hand who can help you in emergencies.

WARNING! Failure to obey these warnings could result in death or serious injury.

Electrocution hazard

• Observe the recommended cable cross-sections.
• Lay the cables so that they cannot be damaged by the doors or the hood.
  Crushed cables can lead to serious injury.

NOTICE! Damage hazard

• Use ductwork or cable ducts if it is necessary to lay cables through metal panels or other panels with sharp edges.
• Do not lay the 230 V mains cable and the 12 V DC cable in the same duct.
• Do not lay the cable so that it is loose or heavily kinked.
• Fasten the cables securely.
• Do not pull on the cables.

Operating the device safely

DANGER! Failure to obey these warnings will result in death or serious injury.

Electrocution hazard

• Do not touch exposed cables with your bare hands. This applies especially when operating the device from the AC mains.
• To be able to disconnect the device quickly from the AC power supply, the socket must be close to the device and be easily accessible.

WARNING! Failure to obey these warnings could result in death or serious injury.

Explosion hazard

- Only use the device in closed, well-ventilated rooms.

CAUTION! Failure to obey these cau-tions could result in minor or moderate injury.

Explosion hazard

• Do not operate the device under the following conditions:
  – In salty, wet or damp environments
  – In the vicinity of corrosive fumes
  – In the vicinity of combustible materials
  – In areas where there is a danger of explosions

Electrocution hazard

• Before starting the device, ensure that the power supply line and the plug are dry and the plug is free from rust or dirt.
  • Always disconnect the power supply when working on the device.
• Observe that parts of the device may still conduct voltage even if the fuse has blown.
• Do not disconnect any cables when the device is still in use.

NOTICE! Damage hazard

• Ensure that the air inlets and outlets of the device are not covered.
• Ensure a good ventilation.
• Never pull the plug out of the socket by the connection cable.
• The device shall not to be exposed to rain.

Safety precautions when handling batteries

WARNING! Failure to obey these warnings could result in death or serious injury.

Risk of injury

• Batteries contain aggressive and caustic acids. Avoid battery fluid coming into contact with your body. If your skin does come into contact with battery fluid, wash that part of your body thoroughly with water.
  If you sustain any injuries from acids, contact a doctor immediately.

CAUTION! Failure to obey these cau-tions could result in minor or moderate injury.

Risk of injury

• When working on batteries, do not wear any metal objects such as watches or rings.
  Lead acid batteries can cause short circuits which can cause serious injuries.
• Wear goggles and protective clothing when you work on batteries. Do not touch your eyes when you are working on batteries.

Explosion hazard

• Never attempt to charge a frozen or defective battery.
  Place the battery in a frost-free area and wait until the battery has acclimatised to the ambient temperature. Then start the charging process.
• Do not smoke, use an open flame, or cause sparking near the engine or a battery.

NOTICE! Damage hazard

• Only use rechargeable batteries.
• Prevent any metal parts from falling on the battery. This can cause sparks or short-circuit the battery and other electrical parts.
• Ensure that the polarity is correct when connecting the battery.
• Follow the instructions of the battery manufacturer and those of the manufacturer of the system or vehicle in which the battery is used.

• If you need to remove the battery, first disconnect the ground connection. Disconnect all connections and all consumers from the battery before removing it.

• Only store fully charged batteries. Recharge stored batteries regularly.

• Immediately recharge deeply discharged lead batteries to avoid sulfation.
• Check the acid level for open lead-acid batteries regularly.

Safety precautions when handling lithium batteries

CAUTION! Failure to obey these cau-tions could result in minor or moderate injury.

Risk of injury

- Only use batteries with integrated battery management system and cell balancing.

NOTICE! Damage hazard

- Only install the battery in environments with an ambient temperature of at least 0^ .

- Avoid deep discharge of the batteries.

Scope of delivery

Quantity Description

1 MT BCB30/30 or MT BCB40/40 or MT BCB60/40

1 Temperature sensor with cable (3 m)

1 Extension cable (5 m) with adapter for display panel used for remote control

1 Installation and Operating manual

Accessories

Available as accessories (not included in the scope of delivery):

Designation Ref. no.

Load relay (EBL) with installation	9620000273
cable set and terminal block for charging cable with 2 ring terminals (for installation variant C1)	(MT93080)
Bypass relay with installation cable set (for installation variant C2)	9620001495(MT93050)

Designation Ref. no.

Load relay (12 V, 100 A/ 180 A) with M5 screw terminals (for installation variant D)	9620000184 (MT02156)
D+ active simulator 9620000336	(MT02159)
Charging cable set (2 m) with fuse (250 A)	9620001496 (MT 22002)
Charging cable set (3 m) with fuse (250 A)	9620001497 (MT 22003)
Charging cable set (4 m) with fuse (250 A)	9620001498 (MT 22004)
Charging cable set (5 m) with fuse (250 A)	9620001499 (MT 22005)
Charging cable set (6 m) with fuse (250 A)	9620001500 (MT 22006)

Intended use

The battery charger (also referred to as battery control booster) is intended to charge 12 V house batteries in vehicles while driving and on the mains. In addition, the device can be used as a stable power supply for consumers to keep the batteries fully charged. When no charging source is available, the pulsing operation ensures reconditioning of lead-acid batteries.

The battery control booster is intended to be used to charge the following battery types:

• Lead acid batteries
• Lead gel batteries
  • Absorbed glass mat (AGM) batteries
• LiFePO4 batteries

The battery control booster is not intended to be used to charge other types of batteries (eg. NiCd, NiMH, etc.).

The battery control booster is suitable for:

• Installation in recreational vehicles (RV) and motor homes
• Stationary or mobile use
- Indoor use

The battery control booster is not suitable for:

- Outdoor use

This product is only suitable for the intended purpose and application in accordance with these instructions.

This manual provides information that is necessary for proper installation and/or operation of the product. Poor installation and/or improper operating or maintenance will result in unsatisfactory performance and a possible failure.

The manufacturer accepts no liability for any injury or damage to the product resulting from:

• Incorrect assembly or connection, including excess voltage
• Incorrect maintenance or use of spare parts other than original spare parts provided by the manufacturer
  • Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in this manual

Dometic reserves the right to change product appearance and product specifications.

Technical description

General description

MT BCB30/30: The device charges with 30 A at the 230 V mains and 30 A while driving.

MT BCB40/40: The device charges with 40 A at the 230 V mains and 40 A while driving.

MT BCB60/40: The device charges with 40 A at the 230 V mains and 60 A while driving.

If neither of these charging sources is available, the integrated pulser takes care of battery maintenance.

The battery control booster has 3 operating modes:

• Mains operation: Charging of the house battery, trickle charging of the starting battery and supply of 12 V appliances from the 230 V mains.
• Booster operation: Charging of the house battery by the alternator while driving.

- Pulser operation: The pulser can be activated when no charging source is available to protect the battery from sulfation.

The battery control booster offers the following functions:

• Microprocessor-controlled, temperature-compensated IUOU charging programs for various battery types
  • Auxiliary charging output for the starting battery
• Buffer operation: Compliance with the charging characteristics even when the battery is charged with consumers connected
• On-board mains suppression filter: Ensures parallel operation of the battery control booster with other charging sources, for example mains supply chargers or generators
  • Automatic compensation of voltage loss caused by the charging cable length (house battery)

The battery control booster has the following protective mechanisms:

• High voltage shutdown
- Low voltage shutdown
• High temperature shutdown
- Low temperature protection (only LiFePO4 batteries)
• Protection against short circuit
- Reverse polarity protection (only for house battery connection)

The battery control booster can be adapted to different battery types via DIP switches (see chapter "Setting the charging program" on page 26).

The temperature sensor monitors the battery temperature during the charging process (see chapter "Temperature sensor" on page 21).

The battery control booster is equipped with a removable display panel for remote control.

Description of the device

Item in fig. 1, Designation page 3

1 Connection cable

2 Display panel

3 Rubber feet

4 Service connection

5 Connections and controls

6 Temperature sensor

7 Extension cable (5 m) with adapter for display panel used for remote control

Connections and controls

Item in fig. 2, page 3	Designation Description
1	S e r connection	For authorized personal only
2	D I P battery type	Setting of the charging t program (see chapter "Setting the charging pro-gram" on page 26).
3	D I P battery capacity and functional settings	Setting of the charging t current (see chapter "Adapting the charging current" on page 27) and other functions.
4 Ntz terminal Output for 12 V signal when connected to mains (max. 100 mA)
5 BMS terminal Only for LiFePO4 batteries: Input for control signal of external battery man-agement system
6 D+ terminal Input for D+ signal of the alternator or ignition lock signal (terminal 15)

Item in fig. 2, Designation page 3	Description
7 CI terminal Optional	Connection for a caravan industry bus systemNote:The battery control booster must be integrated into the CI-BUS on-board management system by the vehicle manufacturer, expansion partner or a system integrator.
8 TR terminal Output for controlling anormally open relay NO (connection variant D) or anormally closed relay NC (connection variant Cl)
9 S-/S+ terminal Inputs for sense cables to measure and control the charging voltage at the battery
10 TT terminal 2 connections for temperature sensor
11 BORD+ Connection to positive pole of 12 V house battery
12 COM-h e s	Connection to the negative pole of the house battery/chassis
13 START+	Connection to positive pole of 12 V starting battery

Display panel

Item in fig. 3, Designation page 4
1 On/Off button
2	L	E	D	i	n	d	i	c

LED indicator on display panel

LED Status Description

Current(red)	On Charging current present; mains or booster charging mode
	Off Charging current < 0.2 A
Batt. I(yellow)	On House battery is charged in mains or booster charging mode
	Flashing slowly	·High temperature protection·Only LiFePO4 batteries: Low temperature protection
	Flashing quickly	Only LiFePO4 batteries: Temperature < 0 °C, reduced charging current causing longer charging times
	Off No charging
Battery full(green)	On House battery fully charged (100 %); U2/U3 phase
	Flashing Charging process in U1 phase (lead batteries: < 75 %, LiFePO4 batteries: < 90 %)
	Flashing slowly	State of charge 75 – 100 % (lead batteries: > 75 %, LiFePO4 batteries: > 90 %)
MainCharging(yellow)	On Charging process in I/U1 phase
	Flashing · Over voltage protection·Temperature sensor is not connected (only LiFePO4 batteries)

LED Status Description

Batt. II (yellow)	On Booster charging mode; starting battery charges the house battery
	Off Booster charging not activated
	Flashing Starting battery voltage too low
Power (green)	On Voltage present; mains or booster charging mode
	Flashing slowly ·Safety shutdown (chapter “Troubleshooting” on page 31) ·Over temperature protection
	Flashing in 2 s interval ·AC power limit function activated ·Night mode act
	Flashing in 20 s interval Pulsing operation mode

Battery charging function

A main charging cycle of the house battery is initiated in the following situations:

• After a standstill of the alternator or mains failure
- After falling below the reset voltage of 12.75 V for lead batteries or 13.10 V for LiFePO4 batteries for 30 s

NOTE

In all charging phases (U1 phase to U3 phase), almost the entire possible charger current is available for the additional supply of DC loads without discharging the battery.

The charging characteristics for fully automated continuous operation without monitoring are referred to as modified IU0U characteristics (see charging curve in fig. 6, page 5).

1: Analysis phase

The battery is deeply discharged ( >10% ). The battery charge is analyzed with increasing charging current.

2: I phase (Constant current phase)

At the beginning of the charging process, the empty battery is constantly charged with the maximum charging current (100%). The charging current decreases when the battery has reached a state of charge of 75% (90% for LiFePO4 batteries). Batteries with a voltage of 0 V are charged with reduced charging current until the battery voltage exceeds 9 V. The duration of the I phase depends on the state of the battery, the load from the DC loads and the state of charge. For safety reasons the I phase is terminated after a maximum of 15 h (in case of battery cell defects or similar).

3: U1 phase (Constant voltage phase)

The U1 phase starts when the battery is fully loaded. The charging current is reduced. During the U1 phase, the battery voltage is kept constant at a high level. The duration of the U1 phase depends on the battery type and the depth of discharge.

4: U2 phase (Trickle charging)

The U2 phase serves to maintain the battery capacity (100%). The U2 phase runs at lowered charging voltage and variable current. If DC loads are connected, they are powered by the device. Only if the power required exceeds the capacity of the device is this surplus power provided by the battery. The battery is then discharged until the device re-enters the I phase and charges the battery. The U2 phase is limited to between 24 and 48 h depending on the battery type.

5: U3 phase (Storage charging)

In long-term mains operation, the U3 phase prevents further discharge of the battery (e.g. during long breaks in use, seasonal operation or during winter storage), minimizes battery gassing and prevents plate corrosion.

6: Reconditioning

Twice a week, the charger switches back to the U1 phase for a short time (max. 1 h) in order to revive the battery. This prevents any fatigue phenomena such as sulfation or electrolyte stratification.

Temperature sensor

With the temperature sensor connected, the battery control booster adjusts the charging voltage (for lead batteries) or the charging current (for LiFePO4 batteries) according to the measured temperature at the battery.

NOTE

• For lead batteries: Without temperature sensor connected, the charging voltage is referenced to 20 °C.
• For LiFePO4 batteries: Without temperature sensor connected, the battery control booster does not work.

The charging characteristics are adjusted as follows:

• For lead acid batteries see fig. 7, page 5
• For lead gel batteries see fig. 8, page 5
• For AGM batteries see fig. 9, page 5
• For LiFePO4 batteries (13.9 V) see fig. 10, page 5
• For LiFePO4 batteries (14.2 V) see fig. 11, page 6
• For LiFePO4 batteries (14.4 V) see fig. 12, page 6
• For LiFePO4 batteries (14.6 V) see fig. 13, page 6

Legend

--------	Charging curve without temperature sensor connected
—	Charging curve with temperature sensor connected

Mounting the battery control booster

Installation location

NOTICE! Damage hazard

Before drilling any holes, make sure that no electrical cables or other parts of the vehicle can be damaged by drilling, sawing and filing.

NOTE

The battery control booster can be installed lying as well as hanging (fig. 5, page 4).

Observe the following instructions when selecting an installation location:

• Ensure that the mounting surface is solid and level.
• Observe the distance specifications (fig. 4, page 4).

Using the display panel

The display panel can be mounted depending on the installation position of the battery control booster.

▶ To rotate and reinsert the display panel in place proceed as shown (fig. 15, page 7).
▶ To use the display panel as a remote control proceed as shown (fig. 16, page 7).

Connecting the battery control booster

The electrical power supply must be connected by a qualified electrician who has demonstrated skill and knowledge related to the construction and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved.

WARNING! Electrocution hazard

Observe the recommended cable cross-sections, cable lengths and fuse (see chapter "Determine cable cross-section" on page 23).

CAUTION! Fire hazard

Place the fuses near the batteries to protect the cable from short circuits and possible burning.

NOTICE! Damage hazard

Do not reverse the polarity.

NOTE

For Dometic Büttner LiFePO4 batteries: To ensure measuring the internal temperature of the battery use the temperature sensor connector to connect the probe of the temperature sensor to the negative terminal of the house battery.

Observe the following instructions when connecting the battery control booster:

- Select the appropriate connection variant.

Legend for fig. 17, page 8 to fig. 21, page 12:

House battery

Starting battery

• Always connect the battery control booster before connecting the batteries.
- Do not use ferrules. Strip the cable ends as follows:
- Signal cable 9 mm (0.75 - 1.5 mm ^2 )
- Charging cable 12 mm
- Determine the cable cross-section (see chapter "Determine cable cross-section" on page 23).
- Connect the probe of the temperature sensor to the negative terminal of the house battery (fig. 17 1, page 8 to fig. 21 1, page 12).

• Connect the negative terminal of the house battery to the negative terminal of the starting battery or to ground (chassis) (fig. 17 2, page 8 to fig. 21 2, page 12).

• Connect a signal lamp to Ntz (fig. 17 3, page 8 to fig. 21 3, page 12). The signal lamp can be used as a mains detection signal, e.g. when the charger is deactivated.

• Protect the positive cable of the house battery with a fuse I (see chapter "Determine cable cross-section" on page 23).

• Protect the positive cable of the starting battery with a fuse II (see chapter "Determine cable cross-section" on page 23).

Determine cable cross-section
MT BCB30/30

Cable cross-section	Cable length START+	Forinsulated assembly: Cable length - battery	Cable fuse II	Cable length COM-	Cable length BORD+	Cable fuse I
4 m m^2 ---0.5-1.5m 0.5-1.5m 40A
6 mm^2	<5m	<5m	50A	1.0-2.5m	1.0-2.5m	40A
10 mm^2	<8m	<8m	50A	2.0-4.0m	2.0-4.0m	40A
16 mm^2	<12m	<12m	50A	3.0-6.0m	3.0-6.0m	40A

MT BCB40/40

Cable cross-section	Cable length START+	Forinsulated assembly: Cable length - battery	Cable fuse II	Cable length COM-	Cable length BORD+	Cable fuse I
6 m m2	-- - 0.5-1.5 m	0.5-1.5 m	60 A
10 mm2	< 5 m	< 5 m	80 A	1.0-2.5 m	1.0-2.5 m	60 A
16 mm2	< 9 m	< 9 m	80 A	2.0-4.0 m	2.0-4.0 m	60 A
25 mm2	< 14 m	< 14 m	80 A	3.0-6.0 m	3.0-6.0 m	60 A

MT BCB60/40:

Cable cross-section	Cable length START+	Forinsulated assembly: Cable length - battery	Cable fuse II	Cable length COM-	Cable length BORD+	Cable fuse I
6 mm2	-	-	-	-	-	-
10 mm2	-	-	-	0.5 – 2.0 m	0.5 – 2.0 m	80 A
16 mm2	<7 m	<7 m	100 A	1.5 – 3.0 m	1.5 – 3.0 m	80 A
25 mm2	<10 m	<10 m	100 A	2.5 – 5.0 m	2.5 – 5.0 m	80 A

Connection variant A (fig. 17, page 8)

Connection variant for vehicles that are to be equipped with a house battery and charging device.

MT BCB30/30:

• The maximum charging current while driving is 30 A.
• When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 4 A.

MT BCB40/40:

• The maximum charging current while driving is 40 A.

• When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 5 A.
  MT BCB60/40:

• The maximum charging current while driving is 60 A.

• When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 10 A.

NOTE

If the battery control booster is activated via terminal 15, the starting battery can be discharged when the ignition is switched on and the engine is not running. Use a D+ active simulator if no D+ signal is available.

▶ To connect the battery control booster proceed as shown in fig. 17, page 8.

Connection variant B (fig. 18, page 9)

Connection variant for vehicles with an existing cutoff relay.

NOTICE! Damage hazard

The existing cabling and the cutoff relay can be overloaded during operation. Limit the maximum current consumption (see chapter "Reducing the current consumption from the starter circuit in booster operation" on page 29) if the existing cabling is not sufficiently dimensioned according to the recommended cable cross-sections, cable lengths and fuses (see chapter "Determine cable cross-section" on page 23).

NOTE

• When connected to the mains, only the house battery is charged.
• When the cutoff relay is open, no charge maintenance of the starting battery can take place.

▶ Install the battery control booster between the existing cutoff relay (4) and the house battery.

▶ Disconnect the existing charging cable at a suitable point (5). Connect the two cable ends on one side of the terminal block each.

▶ To connect the battery control booster proceed as shown in fig. 18, page 9.

Connection variant C1 (fig. 19, page 10) (MT BCB30/30, MT BCB40/40)

Connection variant for motor homes with existing central electrical system equipped with integrated cutoff relay and integrated charger.

MT BCB30/30: When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 4 A.

MT BCB40/40: When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 5 A.

NOTE

• Starting battery trickle charging is possible only if the central electrical system provides a dedicated starting battery charging output.
• In mains operation, the charging currents of the integrated charger and the battery control booster are added up.
• Use the load relay (EBL) with installation cable set (available as accessory).
• For LiFePO4 batteries: Disable the integrated charger if it is not equipped with temperature-controlled charging and the charging characteristic for LiFePO4 batteries.

▶ Install the battery control booster in the house battery cable between central electrical system (4) and the house battery.
▶Disconnect the existing charging cable at a suitable point. Connect the two cable ends on one side of the terminal block each.
▶Connect the load relay (5) to the TR terminal.
▶Slide the DIP switch to the position "V" (see chapter "Selecting the function for the TR terminal" on page 29).
▶ To connect the battery control booster proceed as shown in fig. 19, page 10.

Connection variant C2 (fig. 20, page 11) (MT BCB60/40)

Connection variant for motor homes with existing central electrical system equipped with integrated cutoff relay and integrated charger.

When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 10 A.

NOTICE! Risk of short circuit

The charging power of the battery control booster while driving is too strong to insert the battery control booster into the existing wiring. Use the load relay (EBL) with installation cable set (available as accessory) to disconnect starting and house battery while the engine is running.

NOTE

• Use the bypass relay with installation cable set (available as accessory).
• In mains operation, the charging currents of the integrated charger and the battery control booster are added up.
• For LiFePO4 batteries: Disable the integrated charger if it is not equipped with temperature-controlled charging and the charging characteristic for LiFePO4 batteries.

▶ Install the battery control booster in parallel with the existing central electrical system (4).
▶ To connect the battery control booster proceed as shown in fig. 20, page 11.

Connection variant D (fig. 21, page 12)

Connection variant if the power consumption in driving operation is higher than the charging power.

WARNING! Electrocution hazard

When connecting the load relay observe the maximum cable length of 0.5 m with the required cable cross-section of

• MT BCB30/30: 6 ~mm^2
  • MT BCB40/40: 10 mm²
• MT BCB60/40: 16 mm ^2

NOTE

• This variant is unsuitable for LiFePO4 house batteries.
• Use the load relay (12 V, 100 A/180 A) with installation cable set (available as accessory).
• The power of the alternator should be at least twice as high as the consumption of the consumers.
• In driving operation, only the consumers are supplied. The house battery is not charged.

MT BCB30/30: When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 4 A.

MT BCB40/40: When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 5 A.

MT BCB60/40: When connected to the mains, charging of the house battery and trickle charging of the starting battery takes place with a maximum of 10 A.

▶ Slide the DIP switch to the position "D+" (see chapter "Selecting the function for the TR terminal" on page 29).
▶Connect the load relay (4) (12 V, 100 A/180 A) to the TR terminal.
▶ Install the installation cable set (5) between starting battery, load relay and house battery.
To connect the battery control booster proceed as shown in fig. 21, page 12.

Operation

NOTE

Use a small screwdriver to carefully move the DIP switches to the required position.

Setting the charging program

▶ Slide the DIP switches (fig. 2 2, page 3) to the position shown in the table below to set the charging program for the respective type of house battery.

NOTICE! Damage hazard

Only use batteries that are suitable for the specified charging voltage.

NOTE

• Select the charging program suitable for the type of battery used based on the manufacturer's specifications or the information in the table below.
• The specified charging times apply to an average ambient temperature of 20 °C.
• The "Current" LED lights up brighter or darker according to the charging current delivered.

DIP switch position (gray)	Desired charging program	U1 Full charge	U2 Full trickle charge	U3 Storage charging
BORDPbLiFePO4Gel13,9 VAcid/AGM114,2 VAGM214,4 V	Lead-acid batteries(14.4 V)(fig. 7, page 5)	14.4 V(0.5–5 h)	13.5 V(24 h)	13.2 V(regeneration 2 times per week: 14.4 V within 1 h)
BORDPbLiFePO4Gel13,9 VAcid/AGM114,2 VAGM214,4 V	Lead gel batteries(14.4 V)(fig. 8, page 5)	14.4 V(4–12 h)	13.8 V(48 h)	13.5 V(regeneration 2 times per week: 14.4 V within 1 h)
BORDPbLiFePO4Gel13,9 VAcid/AGM114,2 VAGM214,4 V	AGM batteries(14.4 V)(fig. 7, page 5)	14.4 V(0.5–4 h)	13.5 V(24 h)	13.2 V(regeneration 2 times per week: 14.4 V within 1 h)
BORDPbLiFePO4Gel13,9 VAcid/AGM114,2 VAGM214,4 V	AGM batteries(14.7 V/ 14.8 V)(fig. 9, page 5)	14.7 V(0.5–3 h)	13.6 V(24 h)	13.2 V(regeneration 2 times per week: 14.4 V within 1 h)
BORDPbLiFePO4Gel13,9 VAcid/AGM114,2 VAGM214,4 V	LiFePO4 batteries(13.9 V)(fig. 10, page 5)	13.9 V(0.5–1 h)	13.9 V(24 h)	13.5 V(no regeneration)
BORD Pb [IMAGE] LiFePO4 Gel 13,9 V Acid/AGM1 14,2 V AGM2 14,4 V	LiFePO4 batteries(14.2 V)(fig. 11 , page 6)	14.2 V(0.5 h)	13.6 V(24 h)	13.4 V(no regeneration)
BORD Pb [IMAGE] LiFePO4 Gel 13,9 V Acid/AGM1 14,2 V AGM2 14,4 V	LiFePO4 batteries(14.4 V)(fig. 12 , page 6)	14.4 V(0.3–1 h)	13.6 V(24 h)	13.5 V(no regeneration)
BORD Pb [IMAGE] LiFePO4 Gel 13,9 V Acid/AGM1 14,2 V AGM2 14,4 V	LiFePO4 batteries(14.6 V)(fig. 13 , page 6)	14.6 V(0.3 h)	13.8 V(24 h)	13.5 V(no regeneration)

Adapting the charging current

▶Slide the DIP switches (fig. 2 3, page 3) to the position shown in the table below to adapt the charging current to the capacity of the house battery.

NOTE

- In the case of two or more batteries, parallel connection is permissible if the batteries are of the same type, capacity and age. Connect the batteries diagonally.

- If two or more batteries are connected in parallel, set the total capacity in Ah at BORD+ terminal.

DIP switch position (gray)	Model	Received capacity house battery	Charging current mains operation	Charging current booster operation
< □□ A Boost< □□ A Netz	MT BCB 30/30	60 – 150 Ah	20 A	20 A
	MT BCB40/40	80 – 220 Ah	30 A	30 A
	MT BCB60/40	100 – 220 Ah	30 A	45 A
< □□ A Boost< □□ A Netz	MT BCB 30/30	75 – 180 Ah	20 A	30 A
	MT BCB40/40	100 – 280 Ah	30 A	40 A
	MT BCB60/40	150 – 420 Ah	30 A	60 A
< □□ A Boost< □□ A Netz	MT BCB 30/30	90 – 220 Ah	30 A	20 A
	MT BCB40/40	120 – 300 Ah	40 A	30 A
	MT BCB60/40	100 – 300 Ah	40 A	45 A
< □□ A Boost< □□ A Netz	MT BCB 30/30	90 – 300 Ah	30 A	30 A
	MT BCB40/40	120 – 400 Ah	40 A	40 A
	MT BCB60/40	150 – 560 Ah	40 A	60 A

Setting the pulsing operation

NOTICE! Damage hazard

The pulser does not replace the charging source. Check the battery for self-discharge and recharge the battery regularly.

NOTE

• Mains operation has priority over booster operation and pulsing operation. The starter and house battery are charged and kept at full charge.
• To activate a change of the operating mode, disconnect the device temporarily from the power supply, the starting battery and the house battery.
• Pulsing operation is automatically deactivated when the charging program for LiFePO4 batteries is set.

▶Slide the DIP switch (fig. 2 3, page 3) to the position shown in the table below to activate or deactivate the pulser operating mode.

√ The green "Power" LED flashes every 20 s.
√ Pulser is activated. The house battery is trained.

DIP switch position (gray)

Function

Pulser is automatically activated when neither mains nor booster operation is set.

Note: Deactivation of pulser with voltage at BORD+ terminal at <12.00 V

Pulser is deactivated.

Setting the safety or storage voltage (only for LiFePO4 batteries with battery management system)

1. Connect the BMS signal output of the LiFePO4 battery to the BMS terminal.
2. Slide the DIP switch (fig. 2 3, page 3) to the position shown in the table below to set the BMS control signal.

DIP switch position (gray)	BMS control signal
BMS | BMS	12 V (High)
BMS | BMS	0V (Low)

NOTE

With BMS signal output connected, safety or storage voltage are activated by a signal at the BMS terminal.

1. Slide the DIP switch (fig. 2 3, page 3) to the position shown in the table below to set the safety or storage voltage.

DIP switch position (gray)	Function selection
A | □□| B	Safety voltage of 12.8 VNote:With safety voltage activated:The charging process is stoppedDC loads are supplied at 12.8 V without discharging the battery
A | □□| B	Storage voltage of 13.2 VNote:Activate the storage voltage during long breaks in use, seasonal operation or during winter storage.

Selecting the function for the TR terminal

NOTE

Select the function for TR terminal depending on the connection variant.

▶ Slide the DIP switch (fig. 2 3, page 3) to the position shown in the table below to set the function for TR terminal.

DIP switch position (gray) Connection variant

C1

Note: Function selection is required for connection variants with existing central electrical system equipped with an integrated cutoff relay. To prevent an interruption of the on-board supply, the TR terminal is switched to the D+ signal with a time delay of 10 s according to the signal from the integrated cutoff relay. In addition, the TR terminal is switched off when D+ falls below 6 V.

D

Note: Function selection is required for connection variants where the power consumption in driving operation is higher than the charging power, as the TR connected load relay is switched load-dependent (lead batteries) or temperature-dependent (LiFePO4 batteries).

Limiting the AC input current (for mains charging)

▶Slide the DIP switch (fig. 2 3, page 3) to the position shown in the table below to limit the AC input current.

DIP switch position (gray)
Function selection

All set charging currents (see chapter "Setting the charging program" on page 26) are reduced by 25 %:

• 20 A is reduced to 15 A
  • 30 A is reduced to 22.5 A
  • 40 A is reduced to 30 A

The charging current corresponds to the set values (see chapter "Setting the charging program" on page 26).

Reducing the current consumption from the starter circuit in booster operation

NOTE

Depending on the charging phase (see chapter "Battery charging function" on page 20), the current consumption of the battery control booster from the starter circuit can be higher than the charging current for the house battery during driving. Reduce the current consumption:

• To relieve a low-power alternator
- To compensate for under-dimensioned wiring on the vehicle side between the starting battery and the central electrical system.

▶Slide the DIP switch (fig. 2 3) to the position shown in the table below to reduce the current consumption from starter circuit in booster operation.

DIP switch position (gray)	Function selection
Limit Boo max	The current consumption is reduced by about 25 %.
Limit Boo max	The battery control booster operates at full power.

Setting the night mode

NOTE

When using the night mode the system stays in this mode for 10 hours and then returns to normal operation.

In night mode the cooling fan is switched to the lowest speed for quiet operation. The control panel is darkened. All LEDs on the control panel except the "Current" LED are switched off.

▶Press the On/Off button on the control panel once to activate or deactivate the night mode.

√ The "Current" LED lights up dimly red.
√ The green "Power" LED flashes slowly.

Activating the AC power limit function

NOTE

• Activating the AC power limit function activates the night mode at the same time.
• Activation of the AC power limit function is also possible without mains connection.
• When using the AC power limit function the system remains in this mode until further changes.

With AC power limit function activated, the battery control booster operates with reduced power on weak local power grids, e.g. weak fused camp sites, mains power supply, or generator operation. The AC power limit function limits the current consumption of the device to < 2 A, while the charging current can be > 25 A.

▶Press and hold the On/Off button on the display panel for 4 seconds to activate or deactivate the AC power limit function.
√ The green "Power" LED flashes in a 2 s interval.

Setting the trickle charging for LiFePO4 batteries

The trickle charging enables long-term charging for LiFePO4 batteries on mains at 50 – 80 % of the capacity, with a permanent charging voltage of 13.2 V.

▶Press the On/Off button on the display panel for 8 s to activate or deactivate the trickle charging.
√ The green "Battery full" LED and the yellow "Main Charging" LED flash alternately.

Cleaning and maintenance

WARNING! Electrocution hazard

Unplug the batteries before cleaning and maintenance.

NOTICE! Damage hazard

• Never clean the device under running water or in dish water.
• Do not use sharp or hard objects, abrasive cleaning agents or bleach during cleaning as these can damage the device.

▶Occasionally clean the device with a soft, damp cloth.
▶ Regularly check live cables or lines for insulation faults, breaks or loose connections.

Troubleshooting

Fault Possible cause Suggested remedy

The battery control booster does not work. The green "Power" LED does not light up.	Insulation faults, breaks or loose connections at the live cables.	▶ Check live cables for insulation faults, breaks or loose connections. If you cannot find an error, contact an authorized service agent.
	Short circuit has been generated. The device fuse must be replaced by an authorized service agent after it has been triggered by excess current.
The battery control booster does not work. The yellow "Main Charging" LED flashes.	Over voltage protection of the house battery. Battery voltages too high (>15.5 V).	▶ Reduce the connected voltages. The battery control booster restarts automatically when the voltage drops to the restart value (<13.2 V).
	Connection of defective charging systems.	▶ Check and remove defective charging systems if necessary.
	Only LiFePO4 batteries: Temperature sensor is not connected.	▶ Only LiFePO4 batteries: Connect the temperature sensor.
Unusually long charging time. The yellow "Batt. I" LED flashes slowly.	High temperature shutdown: The battery control booster switches to reduced charging voltage (12.8 V) and the maximum charging current is halved when the temperature of the battery exceeds the cutoff value (>50 °C).	▶ Check that the air inlets and outlets are not covered or obstructed. ▶ Allow the battery to cool down. The battery control booster returns automatically to full charging voltage when the temperature drops to the restart value (<48 °C).
	Low temperature shutdown (only for LiFePO4 batteries): The battery control booster switches to reduced charging voltage (12.8 V) when the temperature of the battery drops below the cutoff value (< 20 °C).	▶ Move the battery to a warmer location. The battery control booster returns automatically to full charging voltage when the temperature exceeds the restart value (>18 °C).
Unusually long charging time. The yellow "Batt. I" LED flashes quickly.	Low temperature protection (only for LiFePO4 batteries): The battery control booster switches to reduced charging current when the temperature of the battery drops below the cutoff value (< 0 °C).	▶ Move the battery to another location (>0 °C). The battery control booster restarts automatically when the temperature exceeds the restart value (>0 °C).
Unusually long charging time. The yellow "Batt. II" LED flashes.	Low voltage protection: The battery control booster switches to reduced charging current (<30 %) to protect the battery.	The battery control booster returns automatically to full charging current when the voltage rises to the restart value.
The battery control booster does not work. All LEDs are flashing simultaneously.	Charging program is not set correctly for the battery used.	▶ Check the setting of the charging program (see chapter "Setting the charging program" on page 26)

Fault Possible cause Suggested remedy

Booster mode does not work. The “Batt. II” LED does not light up.	Voltage at D+ terminal <8 V.	▶ Check voltage at D+ terminal.
Booster constantly switches between active and idle state.	Starting battery voltage too low	▶ The charging current is too high for the alternator. Reduce the charging power (see chapter “Reducing the current consumption from the starter circuit in booster operation” on page 29).▶ Check the starting battery and the alternator.
	Weak D+ signal.	▶ Check the D+ signal.▶ Alternatively use the ignition key signal (terminal 15) or install a D+ active simulator.
The battery control booster stops the charging process. The green “Power” LED flashes slowly.	Shutdown by safety timer. The I phase has lasted too long (>15 h).	▶ Reset the device by removing the control signal at D+. Switch off the motor and disconnect the device from the mains.
	Too many DC loads connected.	▶ Reduce the connected DC loads.
	The battery is defective.	▶ Replace the battery.
	Overheating of the battery control booster.	The battery control booster restarts automatically when the temperature drops.
The battery is no longer taking a charge or is unable to hold a charge.	The battery is defective.	▶ Replace the battery.
Full charging current is not reached. The “Power” LED lights up.	House battery is already charged.	▶ Load with powerful consumers.
	The battery terminals are not connected correctly.	▶ Check the connections.▶ Check the cable cross-sections and lengths (see chapter “Determine cable cross-section” on page 23).▶ Check the stripped cable ends.▶ Check the voltages directly at the terminals.
	The charging current is not set correctly.	▶ Check the setting of the charging current (see chapter “Adapting the charging current” on page 27).
	The battery is significantly sulfated.	▶ Replace the battery.
Full charging current is not reached. The “Power” LED flashes in a 2 s interval.	AC power limit function is activated.	▶ Deactivate AC power limit function.

Fault Possible cause Suggested remedy

Full charging current is not reached in booster mode. The “Batt. II” LED flashes.	Voltage at START+ <11 V.	▶ Check voltage at START+. Increase the motor speed so that the battery control booster can regulate.
	Cutoff relay present.	▶ Adapt connection variant for vehicles with an existing cutoff relay.
	DIP switch is set to “Limit Boo”.	▶ Check the position of the DIP switch (see chapter “Reducing the current consumption from the starter circuit in booster operation” on page 29).
Control panel only lights up poorly.	Night mode is activated.	▶ Switch off the night mode (see chapter “Setting the night mode” on page 30).

Warranty

The statutory warranty period applies. If the product is defective, please contact your retailer or the manufacturer's branch in your country (see dometic.com/dealer).

For repair and warranty processing, please include the following documents when you send in the product:

• A copy of the receipt with purchasing date
- A reason for the claim or description of the fault
Note that self-repair or non-professional repair can have safety consequences and might void the warranty.

Disposal

Recycling packaging material

Place the packaging material in the appropriate recycling waste bins wherever possible.

Recycling products with non-replaceable batteries, rechargeable batteries or light sources

If the product contains any non-replaceable batteries, rechargeable batteries or light sources, you don't have to remove them before disposal.

If you wish to finally dispose of the product, ask your local recycling center or specialist dealer for details about how to do this in accordance with the applicable disposal regulations.

The product can be disposed free of charge.

	MT BCB30/30/20 MT BCB40/40/30 MT BCB60/60/40
Charging output house battery
Lead batteries
Nominal battery voltage	12 V---	12 V---	12 V---
Recommended battery capacity	75 - 300 Ah	100 - 400 Ah	150 - 560 Ah
Maximum pre-charge current of a deeply discharged battery (<8 V)	15 A 20 A 20 - 30 A
Minimum battery voltage for start of charging	0 V 0 V 0 V
Protection charge voltage at battery over-temperature	12.8 V 12.8 V 12.8 V
LiFePO4 batteries
Nominal battery voltage	12 - 13.3 V---	12 - 13.3 V---	12 - 13.3 V---
Recommended battery capacity	60 - 300 Ah	80 - 400 Ah	100 - 560 Ah
Protection charge voltage at battery under-/over-temperature	12.8 V 12.8 V 12.8 V
Charging input/output starting battery
Nominal battery voltage	12 V---	12 V---	12 V---
Recommended battery capacity	60 Ah	80 Ah	100 Ah
Mains operation
Nominal operating voltage	230 V~ / 45 - 65 Hz	230 V~ / 45 - 65 Hz	230 V~ / 45 - 65 Hz
Voltage range• full charging power• short-time (5 s)	190 - 265 V~300 V~	190 - 265 V~300 V~	190 - 265 V~300 V~
Operating voltage range	90 - 265 V~ /45 - 65 Hz	90 - 265 V~ /45 - 65 Hz	90 - 265 V~ /45 - 65 Hz
Charging power at 110 V~	ca. 90 %	ca. 70 %	ca. 70 %
Sinusoidal current consumption, power factor correction (CosPhi = 1)	yes	yes	yes
Max. power consumption (AC)	520 W	700 W	700 W
Max. current consumption• 207 V (AC)• “AC Power Limit” 207 V~	2.5 A2 A	3.4 A2 A	3.4 A2 A
Charge/buffer/load current, regulated for BORD (IUOU)	0 A - 30 A	0 A - 40 A	0 A - 40 A
	MT BCB 30/30/20	MT BCB40/40/30	MT BCB60/60/40
Charge/ retention current, regulated for START	0 A-4 A 0 A-5	A 0 A-10 A
“Ntz” signal output, indication light/max.	12 V/1 A	12 V/1 A	12 V/1 A
Booster operation
Input voltage range START (EURO 6 +), D+ controlled	10.5-16.0 V	10.5-16.0 V	10.5-16.0 V
Input over-voltage cutoff START (EURO 6 +)	>16.5 V>16.5 V	>16.5 V
Max. power consumption on START 470 W 630 W 930 W
Max. current consumption on START• DIP switch position "max"• DIP switch position "Limit Boo"	0.1-42 A0.1-32 A	0.1-57 A0.1-43 A	0.1-82 A0.1-65 A
Charge/buffer/load current, regulated for START	0 A-30 A	0.1 A-40 A	0.1 A-60 A
Activation-control “D+” input, for D+, terminal 15, ignition	8-16 V	8-16 V	8-16 V
TR terminal, high load relay/max.	12 V/1 A	12 V/1 A	12 V/1 A
Pulser operation
Double-peak current pulses, short-time	>100 A	>100 A	>100 A
Under-voltage cutoff	<12 V	<12 V	<12 V
General technical data
Reverse current from battery, stand-by, no mains	0.016 A 0.016 A	0.016 A
Voltage ripple	<30 mVrms	<30 mVrms	<30 mVrms
Limitation of charging voltage BORD	15 V	15 V	15 V
External over-voltage cutoff BORD	15.2 V	15.2 V	15.2 V
Protection class/ type	I/IP21
Ambient temperature for operation	-20 °C to +45 °C
Ambient humidity	≤95 %, non-condensing
Dimensions (W x D x H)	270 x 300 x 70 mm (fig. 22, page 13)
Weight	3.65 kg	3.80 kg	3.95 kg
Inspection/certification

DE

• MT BCB30/30: 6 ~mm^2
• MT BCB40/40: 10 ~mm^2
• MT BCB60/40: 16 mm ^2

HINWEIS

1 MT BCB30/30 ou MT BCB40/40 ou MT BCB60/40

Description technique

(MT BCB30/30, MT BCB40/40)

• MT BCB30/30:6 mm ^2
• MT BCB40/40 : 10 mm ^2
• MT BCB60/40 : 16 mm ^2

REMARQUE

• MT BCB30/30: 6 mm ^2
  • MT BCB40/40: 10 mm²
  • MT BCB60/40: 16 mm²

NOTA

• Loodzuuraccu's
• Gelaccu's
  • Vliesaccu's (AGM-accu's)
• LFP-accu's

6: Herstel (reconditioning)

Aansluitvariant C1 (afb. 19, pagina 10) (MT BCB30/30, MT BCB40/40)

• MT BCB30/30: 6 mm ^2
• MT BCB40/40: 10 ~mm^2
• MT BCB60/40: 16 mm ^2

INSTRUCTIE

1 MT BCB30/30 eller MT BCB40/40 eller MT BCB60/40

1 Temperaturføler med kabel (3 m)

FORSIGTIG! Brandfare

Anbring sikringen i nærheden af batterierne for at beskytte kablet mod kortslutning og mulig brand.

VIGTIGT! Fare for beskadigelse

- MT BCB30/30: 6 mm ^2

- MT BCB40/40: 10 ~mm^2

- MT BCB60/40: 16 mm ^2

BEMÆRK

6: Rekonditionering (recondition)

• MT BCB30/30: 6 ~mm^2
  • MT BCB40/40: 10 mm²
• MT BCB60/40: 16 mm ^2

ANVISNING

Tilkoblingsvariant C1 (fig. 19, side 10) (MT BCB30/30, MT BCB40/40)

Tilkoblingsvariant C2 (fig. 20, side 11) (MT BCB60/40)

• MT BCB30/30: 6 ~mm^2
• MT BCB40/40: 10 ~mm^2
• MT BCB60/40: 16 mm ^2

MERK

dometic.com/sales-offices