SCR430T - SCR Series

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Littelfuse Tower and Obstruction Lighting Controls
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The SCR series are Tower and Obstruction Lighting Controls used in a variety of applications. The SCR430T and SCR630T are universal lamp alarm relays designed to sense the failure of flashing or steady incandescent beacon lamps or steady side lights. The SCR9L is a universal lamp alarm relay designed to sense the failure of flashing or steady LED beacon lamps or obstruction lamps. The SCR490D Series is used to provide remote monitoring of steady burning incandescent marker and obstruction lighting. Four onboard switches allow operator programming for lighting systems with two through nine lamps on a single AC circuit.

See the Technical Resource Section below for individual datasheets containing specifications and operation details.
Property (Mouseover for details) Value
Input Voltage (V) 120VAC
Input Tolerance (%) ±10%
Input AC Line Frequency (Hz) 50/60Hz
Output Voltage ≤125W@120VAC
Output Load Type Incandescent
Output Form SDPT
Output Load Rating (VA) 10A @ 240VAC or 30VDC resistive; 1/4 hp @ 125VAC; 1/2 hp @ 250VAC
Trip Delay Type ≅6s fixed
Circuitry Encapsulated
Operating Temperature -55° to 65° C (-67° F to 149° F)
Mounting Method Two #6 (M3.5 x 0.6) screws
Termination Type Screws with captive clamps for up to 14AWG (2.45mm2) wire
Dimensions 3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5mm)
Weight (lbs/g) ≌6.8 oz (193g)
Sample capable No