A1565.07 - Dimmer JUNG - Free user manual and instructions

Product Type	Universal 2-gang dimmer insert
Model Reference	A1565.07 (Art.-No. 1252 UDE)
Dimensions (approx.)	71 x 71 mm (front), depth 40 mm (insert)
Weight (approx.)	0.1 kg
Rated Voltage	AC 230 V ~ 50 / 60 Hz
Connected Load per Output (at 25°C)	50 ... 260 W (incandescent, HV halogen, Tronic transformers) or 50 ... 260 VA (inductive transformers)
Load Types Supported	Incandescent lamps, HV halogen lamps, dimmable inductive transformers, Tronic transformers (halogen lamps); mixed load possible
Outputs	Two independent outputs (a1 and a2), asymmetric load distribution allowed
Dimming Principle	Automatic detection: phase cut-off (ohmic/capacitive) or phase cut-on (inductive)
Protection Features	Electronic short-circuit protection (permanent switch-off after ≤7 s), electronic over-temperature protection, bulb-preserving soft start
Mounting	In appliance box to DIN 49073
Connection	Screw terminals, single stranded max. 4 mm²; extension units unlimited, cable length max. 100 m
Ambient Temperature	+5 ... +25 °C (operation)
Safety Instructions	Install only by skilled electricians; disconnect power before work; do not operate without cover; device not for disconnection from supply; each inductive transformer must be fused primary side
Maintenance & Cleaning	Wipe with a dry cloth; do not use aggressive cleaners
Spare Parts & Repairability	Center plate Art.-No. ..1565.07..; satellite insert 2-wire Art.-No. 1220 NE; internal fuse not replaceable; if defective, exchange the dimmer
Warranty	As provided by law; send defective unit postage-free to ALBRECHT JUNG GMBH & CO. KG Service Center

Frequently Asked Questions - A1565.07 JUNG

How do I reset the dimmer after a short circuit?

After a short circuit, the dimmer automatically switches off and tries to restart after a short time. If the fault persists, eliminate the short circuit. The device may remain off permanently if the internal fuse has blown; then the dimmer must be replaced.

Can I use LED lamps with this dimmer?

This dimmer is designed for incandescent lamps, HV halogen lamps, and dimmable inductive or Tronic transformers with halogen lamps. It does not support LED lamps directly. If you intend to use LEDs, they must be connected via a suitable dimmable LED driver or transformer compatible with the dimmer's load type.

What is the maximum load per output?

At 25°C, the maximum load per output is 260 W for incandescent/HV halogen/Tronic transformers, or 260 VA for inductive transformers. However, depending on load distribution between outputs, limits vary (see table in manual, e.g., 350 W on a1 when a2 is 50 W). At higher temperatures, load must be reduced.

How many extension units can I connect?

The number of extension units (2-wire) is unlimited, but the total length of the extension cable must not exceed 100 m. Note that installation buttons (standard push buttons) cannot be used as extensions; only specific 2-wire extensions (e.g., Art.-No. 1220 NE) are supported.

Why does the dimmer turn off both outputs and won't switch on?

This is likely due to electronic over-temperature protection tripping. The dimmer automatically switches off to prevent damage. Reduce the connected load and check the installation conditions (e.g., ventilation, ambient temperature). The device does not automatically switch on again after cooling; you must manually turn it on.

Is there a minimum load requirement?

Yes, the minimum load per output is 50 W (or 50 VA for inductive transformers). Operating below this may cause flickering or unstable dimming. Also, for inductive transformers, operate at at least 85% nominal load.

How can I save a custom switch-on brightness?

With the light on, adjust to the desired brightness using the up/down buttons. Then press the button (top or bottom depending on output) for more than 3 seconds. The light briefly switches off and on to confirm. Separate brightnesses can be saved for outputs a1 and a2.

What type of wiring is required?

The dimmer connects to AC 230 V mains. Connect the load(s) to the screw terminals (outputs a1 and a2). For power extension, use power boosters. Do not connect the two outputs together on a common load, as this will destroy the device. Follow the connection diagram in the manual (Figure 3).

Why are my lamps flickering?

Possible causes: minimum load undershoot (connect more load), centralized pulses from the power grid (brief flicker), or load detection (brief flicker upon startup, not a fault). If flickering persists, check that the load type matches the dimmer's capabilities, and ensure no mixed operation of Tronic and inductive transformers on the same output.

What is the warranty coverage?

The dimmer comes with a warranty as provided by law. For defects, send the device postage-free with a description to the ALBRECHT JUNG GMBH & CO. KG Service Center at Kupferstr. 17-19, D-44532 Lünen, Germany. Contact: +49 (0) 23 55 . 80 65 51 or [e-mail].

USER MANUAL A1565.07 JUNG

Universal 2-gang dimmer insert

Art.-No.: 1252 UDE

Operating instructions

1 Safety instructions

Electrical equipment may only be installed and fitted by electrically skilled persons.

Serious injuries, fire or property damage possible. Please read and follow manual fully.

Danger of electric shock. Do not operate the device without a cover.

Danger of electric shock. Always disconnect before carrying out work on the devise or load. At the same time, take into account all circuit breakers that supply dangerous voltage to the device or load.

Danger of electric shock. Device is not suitable for disconnection from supply voltage. The load is not electrically isolated from the mains even when the device is switched off.

Fire hazard. For operation with inductive transformers, each transformer must be fused on the primary side in accordance with the manufacturer's instructions. Only safety transformers according to EN 61558-2-6 may be used.

Exchange defective load on output a1 immediately, because the overheating protection is no longer provided when the load is defective. Device can be damaged.

These instructions are an integral part of the product, and must remain with the end customer.

2 Device components

Figure 1: Device components

(1) Dimmer
(2) Frame
(3) Cover (see chapter 6.3. Accessories)
(4) Screw terminals

3 Function

Intended use

• Switching and dimming of incandescent lamps, HV halogen lamps and dimmable inductive transformers or Tronic transformers with halogen lamps
• Suitable for mixed load up to the specified output (see chapter 6.1. Technical data)
• Suitable for luminaire groups via the two independent outputs a1 and a2
• Installation in appliance box to DIN 49073
• Operation with suitable cover (see chapter 6.3. Accessories)

i No mixed-load operation of Tronic and inductive transformers on the same output.

Product characteristics

• Electronic short-circuit protection with permanent switch-off after 7 seconds at the latest
• Electronic over-temperature protection
• Bulb-preserving soft start
• Power extension through power boosters (see power booster instructions)
• Different load types are possible on the two outputs
• Asymmetric load distribution possible
• Automatic setting of the dimming principle suitable for the load
• Connection of more than one 2-wire extension is possible (see Accessories section)

i The connection of installation buttons as extensions is not possible. This will not function.

Load type Electrical behaviour Dimming principle
Incandescent lamps ohmic Phase cut-off
HV halogen lamps ohmic Phase cut-off
Tronic transformers with halogen lamps	capacitive Phase cut-off
Dimmable inductive transformers with halogen lamps	inductive Phase cut-on

i Flickering of the connected lamps due to undershoot of the specified minimum load or through centralised pulses from the power stations. Brief flickering upon load detection of ohmic loads. No operation is possible during load detection. These are not device faults.

4 Operation

Figure 2: Operating sections of the button

The button field is subdivided into two areas:

- Left: operation of output a1.

- Right: operation of output a2.

i A 2-wire extension is always used to operate both outputs simultaneously.

Switching on the light

■ Press button at top for less than 0.4 seconds.

i The light is switched on using the stored switch-on brightness.

Switching the light off

■ Press button at bottom for less than 0.4 seconds.

Adjust the brightness

Light is switched on.

■ Press up or down button until the desired brightness is reached.

Switching the light on with minimum brightness.

Light is switched off.

■ Press button at bottom for longer than 0.4 seconds.

Save switch-on brightness

Separate switch-on brightnesses can be saved for outputs a1 and a2. In the state as supplied the maximum switch-on brightness is saved.

Light is switched on.

■ Set light to the required brightness.
■ Press button for longer than 3 seconds.

Switch-on brightness is saved.

The lighting switches briefly off and on again as confirmation.

5 Information for electrically skilled persons

5.1 Fitting and electrical connection

DANGER!

Electrical shock when live parts are touched.

Electrical shocks can be fatal.

Before carrying out work on the device or load, disengage all the corresponding circuit breakers. Cover up live parts in the working environment.

CAUTION!

Do not connect outputs together.

Operating both outputs on a common load will destroy the device.

For power extension use power boosters

CAUTION!

Electronic overheating protection only with active output a1.

Operation without electronic overheating protection can destroy the device.

Never operate output a2 alone.

Connecting and mounting the dimmer

Figure 3: Connection diagram

(1) Dimmer
(5) 2-wire extension
(6) to additional extensions
i Output a1 can also be operated alone.
Pay attention to load distribution when an output is loaded with more than 260 W/VA(see chapter 6.1. Technical data). Determine intermediate values by means of interpolation.

■ Connect the dimmer according to the connection diagram (figure 3).

■ If multiple miniature circuit breakers supply dangerous voltages to the device or load, couple the miniature circuit breakers or label them with a warning, to ensure release is guaranteed.

■ Mount the dimmer in an appliance box. The terminals must be at the bottom.

■ Attach the frame and the cover.

6 Appendix

6.1 Technical data

Rated voltage AC 230 V \~

Mains frequency 50 / 60 Hz

Ambient temperature +5 ... +25 °C

Connected load per output at 25°C

Incandescent lamps 50 ... 260 W

HV halogen lamps 50 ... 260 W

Tronic transformers 50 ... 260 W

Inductive transformers 50 ... 260 VA

Ohmic-inductive 50 ... 260 VA

ohmic-capacitive 50 ... 260 W

capacitive-inductive not permitted

i Operate inductive transformers with at least 85% nominal load.

i Power specifications including transformer power dissipation.
For ohmic-inductive mixed load, maximum 50% proportion of ohmic load. Otherwise incorrect calibration of the dimmer may result.

Load distribution at 25 °C

Output a1 Output a2
350 W/VA 50 W/VA
310 W/VA 140 W/VA
290 W/VA 200 W/VA
260 W/VA 260 W/VA
200 W/VA 290 W/VA
140 W/VA 310 W/VA
50 W/VA 350 W/VA

Power reduction

per output at 35°C max. 240 W/VA

per output at 45°C max. 220 W/VA

when installed in wooden or dry construction walls

when installed in multiple combinations -20 %

Connection

Single stranded max. 4 mm²

Number of extension units unlimited

Total length of extension unit cable max. 100 m

Total length power cable max. 100 m

The symbols used to label the dimmer load shows the load type that can be connected to a dimmer and the electric behaviour of a load:

R = ohmic, L = inductive, C = capacitive

6.2 Troubleshooting

Operation via extensions is not possible.

Output a1 not connected correctly.

Check installation.

Defect load on output a1.

Check load on output a1.

Device switches both outputs off and can only be switched on again after a certain time.

Electronic overheating protection has tripped

Reduce the connected load.

Check the installation situation.

Electronic overheating protection only functions when a load is connected to output a1. No automatic switch-on after cooling.

Device switches and output off briefly and then on again.

Short-circuit protection has tripped but now there is no longer a fault.

Or: The device switches one or both outputs off and cannot be switched on again.

Short-circuit protection has tripped.

Eliminate short-circuit.

i Short-circuit protection is not based on a conventional fuse, no metallic separation of the operational current.

Dimmer is defective and has been disconnected from the mains permanently by internal fuse.

Exchange dimmer.

6.3 Accessories

Centre plate for universal 2-gang dimmer insert Art.-No.: ..1565.07..

Satellite insert 2-wire Art.-No.: 1220 NE

6.4 Warranty

We reserve the right to make technical and formal changes to the product in the interest of technical progress.

We provide a warranty as provided for by law.

Please send the unit postage-free with a description of the defect to our central customer service office:

ALBRECHT JUNG GMBH & CO. KG

Service Center

Kupferstr. 17-19

D-44532 Lünen

Service-Line: +49 (0) 23 55.80 65 51

Telefax: +49 (0) 23 55 . 80 61 89

[e-mail]

General equipment

Service-Line: +49 (0) 23 55 . 80 65 55

Telefax: +49 (0) 23 55. 80 62 55

[e-mail]

KNX equipment

Service-Line: +49 (0) 23 55 . 80 65 56

Telefax: +49 (0) 23 55.80 62 55

[e-mail]

The C€ symbol is a free trade symbol, which is solely intended for the authorities and does not guarantee any properties.

ALBRECHT JUNG GMBH & CO. KG

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