The Ex9BN series of modular overcurrent circuit breakers are universal devices for all types of applications that meet the high standards for domestic use according to EN 60898 for rated currents from 1 to 63 A. The rated short-circuit switching capacity Icn is 6 kA. In any case, Icn applies to all circuit breaker versions, i.e. rated current up to 63 A and tripping characteristics B, C, and D.

Overcurrent circuit breakers of Ex9BH series 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, and D. The Ex9BH and Ex9BN series are fully compliant with regard to mechanical performance.

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

Distinguishing features of the product:

• Overcurrent circuit breakers according to IEC/EN 60898-1
• Rated short-circuit switching capacity Icn: 6 kA
• 1 to 4 poles
• Tripping characteristics: B, C, D
• Rated current up to 63 A
• Rated voltage 230/400 V AC, 48 V DC (per pole)
• Wide range of accessories