NCE AR-10 Auto reverser/ circuit breaker
The AR10 is an automatic reverse loop controller for DCC layouts. In addition it functions as a circuit breaker for the reverse loop. Very simple connections: Two wires to the main line and two wires to the auto reverse loop. Recommended for DCC systems from 1 amp to 10 amps. Make sure you set the trip rating correctly to match your DCC systems current capacity.