NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales

NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales

Marsoni

M251S

$16.99

Get it in 3 business days with 1 day shipping. Friday, May 29

NCE Block Detector Module - BD20 - .01 to 20 Amps - All Scales01 to 20 amps. Detects presence of train in block by the current it draws in a range from 0. 01 to 20 amps. No electrical connection to track, simply route track feeder wire through holes in tombstone current. Does not reduce track voltage or get hot. Easily connects to Auxiliary Input Unit (524 200, sold separately) or most signal systems.

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There's a ton of clips in this bag, and they fit the bumper I was installing easy enough. Can't complain. Nice that they included a tool as well, used it to help pull pieces when I was installing them incorrectly for a second. Word of advice to the manufacturer, maybe include instructions, it's not abundantly clear how to install these.

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Reviewed in the United States on August 5, 2025

Verified Purchase

Katy

Charlottesville, US

★★★★★ 5

Muy práctico

Muy práctico para salir de apuros y me gustó mucho la variedad de tamaños

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Reviewed in the United States on May 27, 2026

Verified Purchase

Karl Largie