Circuitron 5401 AR-2 Automatic Reverse Circuit with Adjustable Delay

Oakville Model Trains Depot Verified independent store

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The Circuitron 5401 AR-2 Automatic Reverse Circuit with Adjustable Delay is the AR-1 with an added adjustable delay timer — train pauses at the end of each run before reversing, ju st like the prototype pulling up to a stop.What it does: Same auto-reverse function as the AR-1 (5400) but adds a user-adjustable delay between triggering and direction change. Adjustable from a few seconds to ~30+ seconds — long enough for a passenger train 'station stop' or a mine-load swap. Trigger: Opto-Sensor (covered) or external pushbutton Delay: User adjustable Power: 12 V DC input For: DC point-to-point with realistic 'station stop' pause Circuitron SKU: 5401 (Walthers 800-5401) Tip: Use a long delay to simulate a freight-yard switching pause, or a short delay for continuous trolley-line back-and-forth.About Circuitron: A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard Tortoise slow-motion under-table switch machine and its surface-mount cousin the SMAIL. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal / lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise / SMAIL replacement parts plus the solderless ZipZ connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.In stock at Oakville Model Trains Depot. Show more