断路器 FI23.040A 30mA Earth Leakage CB
Compact DIN rail mount Earth Leakage Circuit Breakers detect and interrupt ground faults. They are VDE approved for the European system of protecting people, animals, equipment and property from dangerous line-to-ground and shock hazard currents.
US applications include ground fault protection of equipment GFPE using the 10 mA and 30 mA fault current ratings, especially when high distributed capacitance, or other leakage cause excessive nuisance trips at lower fault currents. Applications for the 300 mA rating are equipment protection and fire prevention by limiting the energy of a fault to less than the minimum ignition energy for many materials.