JUNG 246EB Operating instructions

JUNG
Brand
JUNG
Model
246EB
Category
Dimmers
Type
Operating instructions

JUNG 246EB is an amplifier for conventional dimmers with built-in functionality. It is intended for output extension of LV dimmers or universal dimmers. The device enables operation of universal dimmers with inductive load, and can be used to connect incandescent lamps, HV halogen lamps, and dimmable inductive transformers with halogen lamps. Mixed operation is possible up to the specified output. The device also features a lamp-beneficial soft start, electronic short circuit protection with permanent switch-off, and electronic over-temperature protection.

JUNG 246EB is an amplifier for conventional dimmers with built-in functionality. It is intended for output extension of LV dimmers or universal dimmers. The device enables operation of universal dimmers with inductive load, and can be used to connect incandescent lamps, HV halogen lamps, and dimmable inductive transformers with halogen lamps. Mixed operation is possible up to the specified output. The device also features a lamp-beneficial soft start, electronic short circuit protection with permanent switch-off, and electronic over-temperature protection.

Amplifier for conventional dimmers, built-in
Light Management
Amplifier for conventional dimmers, built-in
Art.-No.: 246 EB
Operationsmanual
1 Safety instructions
Electrical equipment may only be installed and fitted by electrically skilled persons.
Failure to observe the instructions may cause damage to the device and result in fire and
other hazards.
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.
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.
Do not connect any electronic lamps, e.g. switchable or dimmable compact fluorescent
lamps or LED lamps. Device can be damaged.
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.
These instructions are an integral part of the product, and must remain with the end
customer.
2 Device components
picture 1
(1) Power extension
(2) Load connection
(3) Dimmer connection
3 Function
Intended use
- Output extension of LV dimmers, working according to the phase control principle.
- Output extension of universal dimmers, which have detected an inductive basic load.
In so doing, operation of universal dimmers with an inductive load.
- Connection of incandescent lamps, HV halogen lamps and dimmable inductive
transformers with halogen lamps
- Suitable for mixed operation up to the specified output (see chapter 5.1. Technical data)
- Do not operate the corresponding dimmers without a load
- Installation in false ceilings of surface mounting
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Product characteristics
- Connection of multiple power extensions to one dimmer possible
- Operation using upstream dimmer
- Lamp-beneficial soft start
- Electronic short circuit protection with permanent switch-off
- Electronic over-temperature protection
i Switch-on delay of lamps on power extension of 1 - 2 s
i Brightness differences between the lighting at the dimmer and the lightning at the power
extension are possible.
4 Information for qualified electricians
4.1 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.
Fitting and connecting the power extension
i Use the same external conductor for dimmers and power extensions. Do not swap L and N
on the power extension. Otherwise, there is the risk of malfunction.
picture 2
(1) Power extension
(4) Dimmer
o Fit the power extension.
i Minimum diameter of ceiling opening for installation in false ceilings: 63 mm.
o Connect the power extension according to the connection diagram (picture 2).
i In the case of lighting systems with an output of over 3500 W/VA, the installation must be
distributed across two miniature circuit breakers with the same external conductor.
o If multiple circuit breakers supply dangerous voltages to the device or load, couple the
circuit breaker to ensure tripping.
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Light Management
Amplifier for conventional dimmers, built-in
5 Appendix
5.1 Technical data
Rated voltage AC 230 V ~
Mains frequency 50 Hz
Ambient temperature +5 ... +45 °C
Housing temperature 70 °C (tc)
Power loss max. 7 W
Connected load at 25 °C
i Power specifications including transformer power dissipation.
i Operate inductive transformers with at least 85% nominal load.
Incandescent lamps 100 ... 600 W
HV halogen lamps 100 ... 500 W
Inductive transformers 100 ... 600 VA
Ohmic-inductive 100 ... 600 VA
Connection
Single stranded max. 4 mm²
finely stranded with conductor sleeve max. 1.5 mm²
Finely stranded max. 2.5 mm²
Number of power extensions max. 10
Total length power 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, L = inductive
5.2 Troubleshooting
Power extension switches its load off and on again after a period of time.
Overheating protection has tripped.
Reduce the connected load.
Check the installation situation.
i After cooling, the power extension switches on again automatically.
The power extension switches its load off and cannot be switched on again.
Short-circuit protection has tripped.
Eliminate short-circuit.
Switch the power extension on again with the upstream dimmer.
i Short-circuit protection is not based on a conventional fuse, no metallic separation of the
operational current.
All the loads are switched off.
Device protection dimmer has tripped.
Check the dimmer.
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J:0082540013
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Light Management
Amplifier for conventional dimmers, built-in
5.3 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
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
[email protected]
General equipment
Service-Line: +49 (0) 23 55 . 80 65 55
Telefax: +49 (0) 23 55 . 80 62 55
[email protected]
KNX equipment
Service-Line: +49 (0) 23 55 . 80 65 56
Telefax: +49 (0) 23 55 . 80 62 55
[email protected]
The Πsymbol is a free trade symbol, which is solely intended for the authorities and does not
guarantee any properties.
ALBRECHT JUNG GMBH & CO. KG
Volmestraße 1
D-58579 Schalksmühle
Telefon: +49.23 55.8 06-0
Telefax: +49.23 55.8 06-1 89
E-mail: [email protected]
Internet: www.jung.de
www.jung-katalog.de
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Amplifier for conventional dimmers, built-in
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JUNG 246EB Operating instructions

JUNG
Brand
JUNG
Model
246EB
Category
Dimmers
Type
Operating instructions

JUNG 246EB is an amplifier for conventional dimmers with built-in functionality. It is intended for output extension of LV dimmers or universal dimmers. The device enables operation of universal dimmers with inductive load, and can be used to connect incandescent lamps, HV halogen lamps, and dimmable inductive transformers with halogen lamps. Mixed operation is possible up to the specified output. The device also features a lamp-beneficial soft start, electronic short circuit protection with permanent switch-off, and electronic over-temperature protection.

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