Specifications

49
OUTPUT UNITS |
12 Channel Professional Dimmers
The 12 channel Professional Dimmers are designed for commercial applications such as hotels, restaurants and
oce buildings.
The dimmers are C-Bus controlled, high power, multi phase control units, compatible with a wide range of load
types, including neon. Dimming is achieved through phase control techniques creating a highly ecient range of
dimmers.
The Professional Dimmers provide on-board MCB protection and thermal load protection, and contain modular
output channel cards of various ratings, allowing customisation to suite site needs.
A maintained active output is provided on each channel for emergency lighting. Each channel card has a bypass
switch which permits direct local override of the lighting circuit. In the event of an over-temperature condition,
such as one caused by excessive load, the dimmer channel reduces the output power.
The Professional Dimmer is designed and tested for a wide range of international markets with comprehensive
EMC and electrical safety testing and is fully ROHS compliant.
PRODUCT FEATURES
• Soft start load turn-on protects lamp laments.
• Voltage compensation to minimise load brightness variation if the AC
supply voltage drifts.
• Mounting brackets included for ease of installation.
• Suitable for single or three phase track lighting applications with
optional 3 phase MCB’s and RCD’s
• Filtering to reduce supply voltage signalling eects.
• After mains fail, dimmer returns to previous or preset values.
• Linear output load power following input control.
• C-Bus network burden and network clock generator.
• Emergency lighting output for each channel.
• On-board MCB and/or RCD protection.
• Fan free operation, reduces maintenance requirements.
• Manual dimmer bypass switch on all channels.
• Local C-Bus override switches on front panel.
• Generous mains supply terminals and load terminals.
• Channel Status indicators on front control panel.
• CE (European Community) compliant
TECHNICAL INFORMATION
Load terminal standby leakage current < 10 mA leading edge
AC supply voltage 240/415 V AC
AC supply frequency 47 to 53 Hz
Number of input phases 3 Phase
1 or 2 Phase (3 Amp model)
Minimum load/channel 20 W for incandescent
Compatible Loads Incandescent and low voltage lighting.
Ensure compatible leading edge electronic transformers
are used.
Dimming technology Leading Edge 3-5A Triac
Leading Edge 10-20A Dual SCR
Soft-start ramp time 0.5 sec
Load current rise time 200 s
Power control range 1.5% to 95%
Standby AC supply current 90 mA base current
75 mA each LE Channel
Short circuit withstand strength 6 kA
Rated insulation voltage 500 V
Dielectric test voltage 2500 V
*Note for 3A model installer must connect dimmer to mains with protection rated at 20A per phase 6kA short circuit withstand strength
Contact Schneider Electric on 0870 608 8 608 for more information.