Twilight Switch with lamp fault alarm Model : TC 4801 is basically designed for automatic operation of Aviation lamps on the communication towers at the un manned stations such as BTS / backbone sites. This unit comprises Twilight switch with built-in lamp fault monitoring circuit. It consist single channel for connecting aviation lamp at the top stage on the tower. It is suitable for the tower up to 70 Meters height. Only one lamps of specified type can be connected at the top stages with the help of short link SL1 channel 1 can be either enabled or disabled as per the requirement.
a] Twilight switch : TC 4801
b] Light sensor : In built
c] No. of Channels : One
d] Lamp type : LED
a] Power on : Green indicator
b] Lamp fail : Red indicator
Remote alarm are separately provided through potential free relay contacts. Alarm relay remain normally open / normally close as per your requirement and offers short contact during alarm condition.
a] Operating supply : 48 VDC +/- 15%
b] Power consumption : Min 1.5 W to Max 15.0 W (Depends on lamp wattage)
c] Contact Rating : 5 Amp
a] Panel size : H X W X D 215 X 185 X 95 MM
b] Panel weight : 2.0 Kg. Approx.
c] Panel color : Off white
d] Panel mounting : Outdoor Vertical wall mounting
Lamps specifications (Recommended)
a] Channel 1 : 48 VDC LED Array Lamp
b] Activation Delay : 15 to 30 Seconds for Day & Night