This FRCdM Type A, U, R residual current circuit breaker is part of the xEffect series for industrial/commercial applications. The FRCdM meets the highest requirements for the protection of both people and equipment. The FRCdM Type A is designed for systems with alternating and pulsating direct currents.
Type A RCCBs will also operate correctly within the presence of smooth direct residual current up to 6 mA.
The digital RCCBs from the xEffect series can do more than just switch off. They monitor electrical installations and give advance warning of critical current flows. So that system shutdowns – and the associated costs – can be avoided.
The currently measured residual current is higher than 30% I∆n. The system is currently drawing fault current, and actions should be taken accordingly
The currently measured residual current is higher than 50% I∆n. The system is currently drawing a critical amount of fault current, and actions should be taken immediately.