Air circuit breakers Engard E5K et al.

Air circuit breakers E5K

They are available in cases of 3 standard sizes depending on the rated current of the release: 630 - 2000, 2000 - 3200, 4000 - 5000A. The maximum switching capacity at a rated voltage of 400 V is up to 120 kA, the operating switching capacity is 75% Icu. All the necessary accessories - additional contacts, an independent release, an electric spring cocking drive and an on-off electromagnet, are installed in the circuit breaker at the factory.

They are equipped with modern electronic decouplers with an LCD display, which not only guarantee full protection of the circuit from overload currents, short circuits, including with time delay (selective protection), and ground faults, but also have additional functions that provide full control of the protected circuit and opens up wide possibilities for the use of air circuit breakers on industrial and civil engineering facilities.

Designed for use as input, sectional and distribution devices for switching and protection of generators, transformers, motors, buses, cables.

They are available in roll-out and stationary versions. The pull-out units are mounted in a special basket, and the stationary ones are mounted directly on the mounting profiles of the cabinet.

The standard operating temperature of the switch is from -5°C to +65 °C. By special order, frost-resistant air circuit breakers are supplied with an extended operating temperature range of -40°From ... +65°C.

Model range see in the technical specifications below.