Providing 2:1 coordination ratio with upstream Amp-Trap 2000 fuses, Fused Coordination Panelboard features default short circuit current rating of 200 kA and provides overcurrent protection through combination of circuit breaker and fuse. Combination used for branch circuit protection ensures fuses will open only on short circuits and circuit breaker can be reset on common overloads. Circuit breaker is designed to operate on overloads up to 2 times rating and fuse over 2 times up to 200 kA.