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Circuitron SD-3 Tri-Color Signal Driver #5530
Display red, green, and adjustable amber with a compatible single-target tri-color LED signal. The SD-3 accepts manual three-position control or compatible detector outputs. Requires 10–18V AC or DC; automatic three-aspect operation needs at least three detected...
MODEL TRAIN DETAILS
Available to orderThis item is available to order. Review the listed specifications and delivery information.
- Scale
- MULTI-SCALE
- Part number
- CIR5530
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
Display red, green, and adjustable amber with a compatible single-target tri-color LED signal. The SD-3 accepts manual three-position control or compatible detector outputs. Requires 10–18V AC or DC; automatic three-aspect operation needs at least three detected blocks.
- Manufacturer: Circuitron
- Part number: 5530
- 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.
