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Solutions :: Twilight switch Specifications


For energy saving and to enhance the life of the Aviation lights, it is important o switch OFF the aviation lights when not required and again switch ON, automatically, when it is dark. Our Twilight Switch performs this very function most effectively. The equipment has two independent channels with separate monitoring for failure as well as independent bypass function.

Features

Continuous monitoring of light intensity to switch on one/two lights

Lights are automatically switched OFF when the light intensity increases above a predefined level (this intensity can be varied at installation time)

Two independent channels operation - for operating two bulbs independently

In case of failure of any of channels, the NMS is given an appropriate input

Option to bypass, one or both channels (under this condition no NMS signal is sent). Bypass conveniently done using switches located on the panel

Detection of failure based on current consumption and not just on voltage detection, thereby ensuring that the cable, lamp and power supply are all functioning properly.

Protected against reverse polarity

Input mains protected by an appropriate on-board fuse

Technical specifications

Input Voltage - 48V DC, +/- 7.5%
No. of Output Channels - 2
Lamp specification - 48V DC, 10W , each channel
Alarm - NMS compatible input provided
Visual indicator - Power, Alarm for Lamp I, Alarm for Lamp II
Switches - Power ON/OFF, Bypass Lamp I, Bypass Lamp II
Light sensor - Mountable away from the central unit (5M wire provided)

NOTE: Some of the features mentioned above may require purchase of optional equipment. We reserve the right to revise features and cost at any time, without any prior notice.