£3,102.66 (£3,723.19 inc VAT)

C-Bus Professional Dimmer, 3 channel, LE, 20A Per Channel
[L5103D20LP] - Stock: 0

CE Approved
Special order item

The C-Bus L5103D range of Professional dimmers are high powered 3 channel dimmers designed for commercial applications such as hotels, restaurants and office 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 efficient range of dimmers.

Channel de-rating for use with electronic transformer loads is not required. Each channel is capable of supporting full load current.

The L5103D range of Professional Dimmers provide on-board MCB protection and thermal overload protection and accommodates RCD requirements.

The dimmers contain modular output channel cards of various ratings, allowing customisation to suit 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 current, the dimmer channel reduces the output power as long as the condition exists.

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.

  • Soft start load turn-on protects lamp filaments.
  • Voltage compensation to minimise load brightness variation if the AC supply voltage drifts.
  • Filtering reduces supply voltage signalling effects.
  • Linear output load power following input control.
  • C-Bus network burden and system clock generator.
  • After mains fail, dimmers return to previous or preset values.
  • Local C-Bus override switches on front panel.
  • Channel Status indicators on front control panel.
  • On-board MCB and optional RCD protection.
  • Mounting brackets included for ease of installation.
  • Generous load and mains supply terminals.
  • Emergency lighting output for each channel.
  • Manual dimmer bypass switch on all channels.
  • Fan-free operation, reduces maintenance requirements.
  • Suitable for single or three phase track lighting applications with optional three phase MCBs and RCDs
  • CE (European Community) compliant
Load terminal standby leakage current< 10 mA leading edge
AC supply voltage240/415 V AC
AC supply frequency47 to 53 Hz
Number of input phases1 Phase (5 Amp model), 1 or 3 Phase (10 Amp model), 3 Phase (other models)
Minimum load/channel20 W for incandescent
Dimming technologyLeading edge 5 Amp; Triac Leading edge 10-20 Amp; SCR
Soft-start ramp time0.5 sec
Load current rise time200 μs
Power control range1.5% to 95%
Standby AC supply current90 mA base current, 75 mA each LE Channel
Short circuit withstand strength6 kA
Rated insulation voltage500 V
Dielectric test voltage2500 V
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