Jung 2013/14 Catalogue

Electronics
Dimmer
Ref.-no.
Universal dimmer
Rail mounting device, 2 rail units
50 – 500 W/VA
1-channel
UD 1255 REG
Performance guaranteed only with JUNG TRONIC transformers
Product characteristics:
• Electronic short-circuit protection with permanent switch-off after 7 seconds at the latest
• Electronic overtemperature protection
• Connection of more than one extension is possible
• Connection for central extensions
• Switch-on via lamp-saving soft start
• Suitable amplifiers: ULZ 1215 REG, 247 EB or 246 EB (max. 10) When using 247 EB or 246 EB,
charge dimmer with minimum capacity.
• Automatic setting of the dimming principle suitable for the load
Technical data
Rated voltage:
AC 230 V ~, 50/60 Hz
Connected load:
50 – 500 W/VA
Type of loads:
230 V incandescent lamps (resistive load, trailing edge
phase control)
230 V halogen lamps (resistive load, trailing edge phase control)
TRONIC transformers (capacitive load, trailing edge phase control)
Conventional transformers (inductive load, leading edge
phase control)
Mix of the specified load types (do not mix capacitive loads with
inductive loads).
When using mixed loads with conventional transformers,
the ohmic load must not exceed 50 %.
Rated power loss:
5 W
Ambient temperature: +45 °C
Connection:
screw terminals
single wire: max. 4 mm 2
• stranded with ferrule: max. 1.5 mm 2
• stranded without ferrule: max. 2.5 mm 2
Operation with standard centre plate ..1561.07.. and satellite insert 1220 NE
number of satellite units: unlimited
total length of satellite cables: max. 100 m
Mechanical push-button (make contact, not illuminated) as local satellite unit:
brief press: On / Off
long press: brightness variation
number of satellite units: unlimited
total cable length: max. 100 m
Illuminated mechanical push-buttons must be equipped with a separate N-terminal.
Storing the switch-on brightness is NOT possible with mechanical push-buttons.
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