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Product Description

Circuitron FL-2 Instructions PDF

The CIRCUITRON FL-2HD is designed to be controlled by the output from one of our Grade Crossing Detection circuits.  It incorporates heavy duty output transistors on the FL-2HD raise the maximum load to 500 ma. per side. This circuit is recommended for boulevard crossing signals with their multiple lights and also for signals in the larger scales which draw more current.

The FL-2HD may also be easily wired for continuous flashing or for manual control with a panel switch, if desired. Only one FL-2HD is needed per road crossing regardless of the number of tracks (each with their own Detection circuit) at the crossing. The FL-2HD will power incandescent lamps or Light Emitting Diodes (with proper current limiting resistors). The maximum load that may be applied to each output is 500 ma.   The outputs of the FL-2HD are not protected against over-current or short circuit conditions, and connecting too many lamps to the outputs will likely damage the circuit. This is not covered by warranty. The FL-2HD is constructed on a 1.5” x 3” printed circuit board.

Circuitron Item 800-5122


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