iCB3 Residual Current Protection Circuit Breaker

The iCB3 series residual current protection circuit breakers (intelligent re-closing) are suitable for three-phase four-wire neutral point directly earthed (TT) 50Hz/60Hz AC distribution networks with a rated voltage of 400V, a rated insulation voltage of 1000V and a rated current of up to 800A. It is designed to provide protection against indirect contact and to prevent fire hazards caused by earthing fault currents due to equipment insulation damage. It can also be used to distribute power and protect lines and power supply equipment from overload, under-voltage, short-circuits, single-phase earthing and other fault hazards. The iCB3 series intelligent circuit breakers are multifunctional, integrated device with communication capabilities and adjustable load current residual current action circuit breakers with automatic re-closing function. It complies with all intelligent requirements of smart grid management, making it particularly suitable for comprehensive protection at various levels of urban and rural power networks. It is the preferred product for supporting the operation of the national smart grid. 

Communication: RS485 Modbus.