247.07EB - Dimmer JUNG - Free user manual and instructions

Product Type	Tronic Dimmer, built-in
Brand	JUNG
Model	247.07EB
Rated Voltage	AC 230 V ~, 50 Hz
Connected Load (Incandescent)	50 ... 700 W
Connected Load (HV Halogen)	50 ... 700 W
Connected Load (Tronic Transformers)	50 ... 700 W
Connected Load (Ohmic-Capacitive)	50 ... 700 W
Connection (single stranded)	Max. 4 mm²
Connection (finely stranded with sleeve)	Max. 1.5 mm²
Connection (finely stranded)	Max. 2.5 mm²
Total Length Power Cable	Max. 100 m
Total Length Extension Unit Cable	Max. 100 m
Dimensions (L×W×H)	212 × 48.5 × 46 mm
Housing Temperature	70 °C (tc)
Number of Control Sections	Unlimited (non-illuminated buttons)
Protection	Electronic short-circuit and over-temperature protection
Memory Function	Yes (with memory switch)
Operation	Via installation button with NO contact
Installation	In false ceilings or surface mounting
Minimum Ceiling Opening	63 mm diameter
Safety	Must be installed by skilled electrician; disconnect power before work

Frequently Asked Questions - 247.07EB JUNG

How do I connect the dimmer to the mains and loads?

Follow the connection diagram (Figure 2). Connect the dimmer (1) to mains (L, N) and load (L1). Use a NO contact installation button (7) for control. Additional buttons can be connected via (8). For power boosters, use control cable (2). Ensure all circuit breakers are off before work.

Can I use this dimmer with inductive transformers?

No, this dimmer is not suitable for inductive transformers. It is designed for incandescent lamps, HV halogen lamps, and Tronic transformers (capacitive loads).

What is the minimum load required for proper operation?

The minimum connected load is 50 W for all supported lamp types (incandescent, HV halogen, Tronic transformers, ohmic-capacitive). Undershoot may cause flickering.

How does the memory function work?

When the memory switch (3) is ON, the dimmer remembers the last brightness setting. Pressing the button briefly turns the light on at that brightness. Long press changes brightness with direction reversal. A mains failure longer than 2 seconds deletes the stored value.

What happens if a short circuit occurs?

The dimmer has electronic short-circuit protection. It will switch off the load permanently after at most 7 seconds. To reset, eliminate the short circuit and press the button again. Note: This is not a conventional fuse; no metallic separation.

Why does my lamp flicker even though it's connected correctly?

Flickering can occur if the connected load is below the minimum load (50 W) or due to centralized pulses from power stations. This is not a defect. Increase load or install a power booster if needed.

How do I reset the dimmer after overheating?

If the over-temperature protection trips, the dimmer switches off. Disconnect from mains (including all circuit breakers). Let it cool for at least 15 minutes. Check installation and reduce connected load. Then switch circuit breakers and dimmer back on.

What is the maximum cable length for the power and extension unit?

The total length of the power cable (mains) is max. 100 m, and the total length of the extension unit cable (to additional buttons) is also max. 100 m.

Can I use illuminated push-buttons with this dimmer?

Yes, but only if the illuminated push-buttons have a separate N terminal (neutral). Otherwise, they may not function correctly.

How do I switch the light on at minimum brightness?

Set the memory switch to OFF. Then perform a long press on the push-button until the light switches on at minimum brightness. Release immediately to keep that brightness.

USER MANUAL 247.07EB JUNG

TRONIC dimmer, built-in

Art. No. 247.07 EB

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. 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.

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) Connection of control cable for power boosters
(3) Memory switch
(4) Connection of mains and load

3 Function

Intended use

• Switching and dimming incandescent lamps, HV halogen lamps and Tronic-transformers with halogen lamps
• Suitable for mixed load up to the specified output (see chapter 6.1. Technical data)
• Installation in false ceilings or surface mounting

i No operation with inductive transformers.

Product characteristics

• Operation via installation button with NO contact

• Electronic short-circuit protection with permanent switch-off after 7 seconds at the latest

• Electronic over-temperature protection

• Can be switched to memory function with brightness memory
• Power extension through power boosters (see power booster instructions)

i Flickering of the connected lamps due to undershoot of the specified minimum load or through centralised pulses from the power stations. This does not represent any defect in the device.

4 Operation

Switch light

■ Press push-button briefly.

Memory switch OFF: light is switched on with maximum brightness or light is switched off. Memory switch ON: Light is switched on with the last brightness set or light is switched off.

Switch light on at minimum brightness

Memory switch OFF.

■ Long press on push-button until the light switches on.

Adjust the brightness

Light is switched on.

■ Long press on push-button.

Memory switch OFF: the light becomes brighter up to maximum brightness, remains there briefly and becomes dimmer down to minimum brightness, remains there briefly and becomes brighter again. This process repeats for as long as the push-button remains pressed.

The dimming direction is retained when there is another long press on the push-button. Memory switched ON: the light becomes brighter or dimmer as far as the first limit value, remains there briefly, and then changes the dimming direction. This process repeats for as long as the push-button remains pressed.

i The dimming direction is reversed when there is another long press on the push-button.

i A mains failure of longer than 2 seconds deletes the stored brightness value.

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.

Connecting the dimmer

Figure 2: Connection diagram

(1) Dimmer
(5) Control cable for bower boosters
(6) Load
(7) Installation button, NO contact
(8) Connection of additional installation buttons

When using power booster, always also load dimmer directly with Tronic transformers or incandescent lamps.

i Minimum diameter of ceiling opening for installation in false ceilings: 63 mm.
i Illuminated installation buttons may be connected if they have a separate N terminal.

■ Connect dimmer and installation button according to connection diagram (figure 2).
■ 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.
■ Reposition memory switch if necessary.

6 Appendix

6.1 Technical data

Rated voltage AC 230 V \~

Mains frequency 50 Hz

Housing temperature 70 °C (tc)

Connected load at 25 °C

i Power specifications including transformer power dissipation.

Incandescent lamps 50 ... 700 W

HV halogen lamps 50 ... 700 W

Tronic transformers 50 ... 700 W

ohmic-capacitive 50 ... 700 W

Connection

single stranded max. 4 mm²

finely stranded with conductor sleeve max. 1.5 mm ^4

Finely stranded max. 2.5 mm ^4

Number of control sections

Non-illuminated installation buttons unlimited

Total length power cable max. 100 m

Total length of extension unit cable max. 100 m

Dimensions L×W×H 212×48.5×46 mm

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, C = capacitive

6.2 Troubleshooting

The dimmer switches the load off briefly and then on again.

Cause: short-circuit protection has tripped but now there is no longer a fault.

The dimmer switches the load off and cannot be switched on again.

Cause 1: short-circuit protection has tripped.

Eliminate short-circuit.

Switch dimmer back on again by pressing the button.

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

Cause 2: overheating protection has tripped.

Disconnect dimmer from mains, also switch associated off circuit breakers.

Let dimmer cool down for at least 15 minutes.

Check the installation situation.

Reduce the connected load.

Switch circuit breakers and dimmer on again.

6.3 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

Volmestraße 1

58579 Schalksmühle

Telefon: +49.23 55.8 06-0

Telefax: +49.23 55.8 06-2 04

[e-mail]

www.jung.de

Service Center

Kupferstr. 17-19

44532 Lünen

Germany