ABB Sace Emax E2.2 800A Air Circuit Breaker

The ABB Sace Emax E2.2 800A is a heavy-duty low voltage air circuit breaker from the ABB SACE Emax 2 series, rated at 800A for industrial main incoming and large feeder protection in LV distribution switchgear. This ABB Sace Emax E2.2 800A is designed for selective coordination in multi-level power systems, providing overload, short-circuit and earth fault protection for transformer secondary sides and high-current feeders. The ABB Sace Emax E2.2 800A is widely supplied as an original spare and retrofit unit for power plants, manufacturing and commercial electrical cabinets.

The ABB Sace Emax E2.2 800A complies with IEC 60947-2 standards and supports 3-pole or 4-pole configurations. It can be ordered in fixed or withdrawable draw-out versions; the withdrawable design simplifies on-site testing, maintenance and replacement without disconnecting the main busbars. It uses Ekip electronic trip units including Ekip Touch, Ekip G Touch and Ekip Dip, with configurable LSIG protection curves for long-time overload, short-time delay, instantaneous short-circuit and ground fault protection. Auxiliary contacts, alarm contacts, shunt release and undervoltage release accessories can be fitted to the ABB Sace Emax E2.2 800A to send status and trip signals to PLC and SCADA systems.

This ABB Sace Emax E2.2 800A is built for cabinet mounting inside low voltage switchboards, with rated operational voltage up to 690V AC and rated insulation voltage of 1000V. The ABB Sace Emax E2.2 800A features robust mechanical structure and good EMC immunity, suitable for factory electrical rooms with vibration and electromagnetic noise. Advanced Ekip trip units support power metering, waveform recording, event logging and communication functions, enabling power quality monitoring and centralized supervision. The hardware and protection logic of the ABB Sace Emax E2.2 800A follow ABB original specifications, so existing protection settings can be retained after direct replacement.

The ABB Sace Emax E2.2 800A is commonly deployed in mining distribution centers, water treatment facilities, large manufacturing plants and building main power systems. Replacing a faulty breaker with the ABB Sace Emax E2.2 800A quickly restores circuit protection and fault isolation. As a mature heavy-current ACB in the Emax 2 range, the ABB Sace Emax E2.2 800A delivers reliable protection for users maintaining industrial low voltage distribution infrastructure. ESD precautions should be followed while handling the ABB Sace Emax E2.2 800A to protect the electronic Ekip trip unit