The Ex9BN series modular circuit breakers are universal devices for all types of applications meeting the high standards of household use according to EN 60898, with rated currents from 1 to 63 A. The rated short-circuit breaking capacity Icn is 6 kA. In all cases, Icn applies to all versions of the breakers, i.e., rated currents up to 63 A and tripping characteristics B, C, D.
Ex9BH series breakers are available in 1, 1+N, 2, 3, 3+N, 4-pole versions, where the pole width corresponds to one module – 18 mm. Tripping characteristics: B, C, D. Mechanically, the Ex9BH and Ex9BN series are fully compatible.
They can be combined with a wide range of accessories, including auxiliary contacts, signaling auxiliary contacts, shunt releases, undervoltage and overvoltage releases, or residual current modules. Various accessory combinations are possible. These combinations are only limited by the total number of units, not by the type of accessories – all components are compatible. Up to three auxiliary contact units or signaling auxiliary contact units and up to two release units can be mounted.