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MCBs
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Miniature Circuit Breakers Overview | Clarity right along the line Residential buildings and infrastructure applications Miniature Circuit Breakers Univ. current Mechanical engineering and industrial requirements Approvals Product standard VDE Germany, Europe United Kingdom Switching capacity Icn acc. to IEC/EN 60898-1 (kA AC) Operational voltage max. V DC/pole, acc. to EN 60898-1/-2 and EN 60947-2 max. V AC, acc. to EN 60898-1/-2 and EN 60947-2 max. V AC acc. to UL 1077 and CSA C22.2 No.235 – supplementary protection Rated voltage V AC acc. to to UL 489 – branch circuit protection Harsh ambient conditions Fire protection values acc. to EN 45545-2 (ﬁre protection in rail vehicles) Resistant to vibrations and shocks acc. EN 61373 and EN 50155 “1B” (railway technology) Pollution degree for overvoltage category Application areas Char. A – Semiconductor protection Char. B – Mainly in residential building installations Char. C – Higher starting currents (e.g. lamps, motors) Char. D – Pulse-generating equipment (e.g. transformers, solenoid valves) Char. E – Selective main miniature circuit breakers Plug-in terminals Selective main miniature circuit breakers Additional components Auxiliary contacts, fault signal contacts Shunt releases, undervoltage releases AFDD For switching capacity: Detailed information is avai

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Miniature Circuit Breakers Overview | Clarity right along the line Easy handling with high security Clarity right along the line -for- Ufz. Highlights • Busbar at the back for easy, continuous bus mounting and wiring • Touch protection when grasping the device -exceeds VBG4/BGV A3 requirements • Busbar assembly devices are replaced faster and with less effort The order number is systematically configured and provides information on the key features of the miniature circuit breakers: Series, rated switching capacity, number of poles, rated current and characteristics. The table provides an...

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