Application Documentation DCC Power District Circuit Breakers that incorporate a solid state design, block detection and network feedback. Can replace Digitrax AR-1 On Guard Install Notes   Solid State Replacement for the AR-1. Eliminates problems due to hanging relays. No click.   Features   • Solid State - No Relays   • 4 Amps   • Easy to Install Screw Terminals   • 1 Year Warranty   • Low Cost   • No Power Supply Required

Compatibility with most DCC Systems. Lower power systems such as the Digitrax Zephyr and the Atlas Commander lack the power to operate OnGuard