The Ex9BN modular overcurrent circuit breakers are universal devices for all types of applications meeting the high requirements of standards for domestic use as per EN 60898 with the current rating range from 1 to 63 A. Icn rated short-circuit breaking capacity is 6 kA. In all cases, Icn applies to all versions of circuit breakers, i.e., to rated current up to 63 A and curves B, C, D.

The Ex9BH overcurrent protection is available in 1, 1+N, 2, 3, 3+N, 4-pole variants, where the pole width corresponds to one 18 mm module. Curves: B, C, D. With regard to mechanical parameters, the Ex9BH and Ex9BN series are fully compatible.

They can be combined with a wide range of accessories, including auxiliary contacts, auxiliary trip contacts, shunt, undervoltage and overvoltage trips, and residual current blocks. It is possible to create various combinations of accessories. The combinations are limited only by the total number, not the type of accessories—all elements fit together. Up to three units of auxiliary contacts or auxiliary trip contacts and up to two trip units can be installed.

• Overcurrent circuit breakers compliant with IEC / EN 60898-1
• Rated short-circuit breaking capacity Icn: 6 kA
• Different versions. From 1 to 4 poles
• B, C, D curves
• Rated current up to 63 A
• Rated voltage 230/400 V AC, 48 V DC (per pole)
• A wide selection of accessories