ABB 1SDA071821R1

The E4.2N 4000 Air Circuit Breaker is designed for reliable electrical protection in industrial applications. This fixed four-pole device features terminals connected at the rear in a horizontal orientation and operates on AC current. It is configured with a solid-state release system (Ekip Dip LI) for enhanced performance.

With a rated current of 4000 A and a voltage rating of up to 690 V, this circuit breaker supports a robust electrical durability of 5000 cycles at voltages less than or equal to 440 V, and 4000 cycles at higher voltages. Its mechanical durability extends to 15,000 cycles, allowing for frequent operation at a rate of 60 cycles per hour. The device maintains a neutral pole current of 100%, ensuring balanced load distribution.

In terms of short-circuit performance, the E4.2N 4000 offers a rated service short-circuit breaking capacity (Ics) of 66 kA across various voltage levels, ensuring effective interruption of fault conditions. The rated ultimate short-circuit breaking capacity (Icu) matches this performance, providing a reliable safeguard against overcurrent scenarios.

Dimensions of the unit are as follows: a net width of 510 mm, height of 371 mm, depth of 270 mm, and a total weight of 70 kg. The device utilizes a tightening torque of 70 N·m for its terminal connections, accommodating bolt-type connections. Compliance with IEC standards guarantees its compatibility with global electrical safety requirements. The product supports IT networks at 690 V,...