The CIRCUITRON TD-1 is a time-delay relay for model railroad layouts, helping control accessories and automatic train stops. It suits hobbyists connecting detection circuits, switches, or track contacts to timed relay actions.
Product Details
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Function: Adjustable delay from 0 to over 1 minute, with a single-pole, double-throw relay and 5-amp contacts.
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Material: 2 x 3 inch printed circuit board.
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Scale: Suitable for controlling locomotives in any scale.
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Compatibility: Connects to CIRCUITRON detection circuits, including the DT-4, and can be triggered by reed switches, track contacts, pushbuttons, or a momentary or continuous connection to ground.
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Power: Requires an 11–15-volt DC power source. A filtered source is preferred, and input voltage must not exceed 15 volts.
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Product: TD-1 time-delay circuit.
Using the TD-1
Once the trigger starts the timing sequence, additional trigger inputs are ignored until the sequence is complete. The relay contacts can make or break a circuit for the selected time, supporting timed layout accessories and automatic train stops.
Resources
For manufacturer information, visit Circuitron Electronics. Browse related layout electronics in Trains Misc. Accessories.
