Through the Standard IEC 62423 the technical features of B types RCCBs and RCBOs have been
regulated on International basis. The use of electronic equipment in electrical installations is
constantly increasing and in the event of a fault these may generate smooth DC currents and high
frequency AC residual currents; these will not be detected by a Standard type A residual current
device. This is the reason type B protection devices should be used especially for these applications.
B types RCCBs / RCBOs are suggested for a wide range of applications: photovoltaic installations, UPS,
medical-technical applications (TAC), building sites with cranes, laboratory equipment, mechanical
workshops with numeric control machineries, elevators, welding equipment, etc.
Please download the PDF catalogue for full information.
(PDF format, 1.00MB )