DCC Specialties OnGuard! OG-CB Circuit Breaker

Note: Not for direct current (DC) applications, NCE Power Cab or Digitrax Zephyr • 4 Amps • Easy to Install Screw Terminals • No Relays • 1 Year Warranty • Low Cost • No Power Supply Required 

MSRP $29.95  dspogcb

https://tonystrains.com/product/dcc-specialties-onguard-og-cb-circuit-breaker