The Emax2 circuit breaker series comprises 4 sizes for the realization of switchgear systems with compact dimensions and high performance. All Emax2 circuit-breakers can be equipped with communication modules for Modbus, Modbus TCP, Profibus, Profinet, Devicenet and Ethernet IP. Emax2 E4.2 with rated currents up to 4,000 A and a breaking capacity of up to 100 kA for 1 s is optimized for use in switchgear fields of 600 mm width.