Description
The NCE 5240305 Snubber (RC Filter) is a DCC track bus noise suppressor, sold as a 2-pack. It works with any DCC system, not just NCE.
What it does: Long runs of DCC track bus wire can pick up voltage spikes and ringing that distort the DCC signal. A snubber across the bus damps those spikes, helping protect decoders and curing intermittent problems like temporary loss of control, runaway locomotives, or decoders losing their programming.
- Pack: 2 snubbers
- Use: Any DCC system, any scale
- Install: One across the two rails / bus wires at the far end of each long track bus run (the booster end already has its own filtering)
- Hookup: Two leads, no polarity
- NCE part: 5240305 (Walthers 524-305)
Tip: A snubber is a fix for noise problems, not a substitute for good bus wiring. If your layout runs cleanly you may not need one; if you have several long bus runs, plan on one per run.
About NCE: NCE Corporation (USA) — a leading manufacturer of NMRA-compliant DCC systems, mobile decoders, accessory decoders, and automation electronics. NCE products are renowned for the Pro Cab and Power Cab throttles, the rugged D-series mobile decoders, the Switch-It / Switch8 / Snap-It family of accessory decoders, the BD20 block detector, and a full cab bus / booster / circuit-breaker ecosystem. Most NCE products are also fully compatible with other NMRA DCC systems.

