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Twilight Switch with IP66 Rating - ALC15

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Product Description

The ALC15 is a highly adjustable twilight/lux level switch, supplied in an IP66 enclosure ideal for outdoor use.

  • Use this unit to turn lighting on when the ambient light falls below a preset level
  • Your lights will turn off automatically when the ambient light exceeds a preset level or after a preset time delay (1 hour - 16 hours)
  • Ideal for turning on security lights, shop window lights or external deck lighting after dark
  • Can switch all lighting loads, including LED and CFL
  • Highly accurate adjustable photocell
  • Selectable time delay
  • Mounted in a vandal resistant IP66 enclosure (IP rated as "dust tight" and protected against heavy seas or powerful jets of water)

Technical Specifications

Load Rating at 230VAC 10 Amp incandescent lighting
6 Amp fluorescent lighting
3 Amp compact fluorescent lighting
3 Amp low energy lighting
3 Amp low voltage lighting (switch primary of transformer)
Fluorescent lighting (max 6 fittings recommended)
For fluorescent lighting total power factor correction capacitance must not exceed 40μF.
Switch SON lighting loads via a contactor 
Time Delay


Supply Voltage

220-240 Volts AC 50 Hz 

Time Out Period

Adjustable 1 hour to 16 hours, or auto off

Light Level

Adjustment 10 LUX to 1000 LUX approximately.

Terminal Capacity


IP Rating



Polystyrene TYPE Class 2 

Operating Temperature

-10°C to 35°C


EMC-2004/108/EC LVD-2006/95/EC

Product Manual

Click here to view the manual for this product online - PDF - Opens in new window


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