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Circuitron BD-1HD Heavy-Duty Optical Block Detector #5521
Use optical block detection with heavier signal loads. The BD-1HD provides 500mA capacity per output for large-scale signal lamps while detecting rolling stock through light-sensitive sensors. Manufacturer: Circuitron Part number: 5521 Application: Model railroad electronics and...
MODEL TRAIN DETAILS
Available to orderThis item is available to order. Review the listed specifications and delivery information.
- Scale
- MULTI-SCALE
- Part number
- CIR5521
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
Use optical block detection with heavier signal loads. The BD-1HD provides 500mA capacity per output for large-scale signal lamps while detecting rolling stock through light-sensitive sensors.
- Manufacturer: Circuitron
- Part number: 5521
- 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.
