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Circuitron BD-1 Optical Block-Occupancy Detector #5501
Detect an occupied block without modifying rolling stock. The BD-1 uses light-sensitive sensors between the rails and can directly drive two-color lamp or LED block signals. It operates independently of track power and requires 6–20V DC....
MODEL TRAIN DETAILS
Available to orderThis item is available to order. Review the listed specifications and delivery information.
- Scale
- MULTI-SCALE
- Part number
- CIR5501
Compatibility: Confirm scale, gauge, track family, rail code, power type, DCC status, minimum radius, coupler and required components. Matching scale or brand alone does not prove compatibility.
Shop train parts and accessories- Review the listing photos, specifications and condition notes.
Product details
Detect an occupied block without modifying rolling stock. The BD-1 uses light-sensitive sensors between the rails and can directly drive two-color lamp or LED block signals. It operates independently of track power and requires 6–20V DC.
- Manufacturer: Circuitron
- Part number: 5501
- Application: Model railroad electronics and accessories
Specifications are listed alongside the product details above.
Condition & collecting
Match the listed scale and track gauge to your layout. For locomotives, check the power system, decoder and sound details; DCC ready does not mean a decoder is installed. For rolling stock, check couplers, clearance and the manufacturer's minimum-radius requirement where provided.
Shipping & returns
Shipping, taxes and any applicable discounts are calculated at checkout.
