1SDA071600R1 ABB E2.2S 1250 Ekip G Hi-Touch LSIG 4p FHR Air Circuit Breaker

Why Choose the ABB E2.2S 1250 Ekip G Hi-Touch LSIG 4p FHR Air Circuit Breaker?

The ABB E2.2S 1250 Ekip G Hi-Touch LSIG 4p FHR, order code 1SDA071600R1, is a high-performance four-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range, designed for generator protection and demanding low-voltage electrical distribution systems. Combining a 1250 A rated uninterrupted current with the advanced Ekip G Hi-Touch LSIG electronic trip unit, it provides comprehensive overload, short-circuit and earth-fault protection together with advanced protection functionality for generator applications.

This E2.2S circuit breaker is supplied in a fixed four-pole configuration with rear horizontal flat terminals. Its Ekip G Hi-Touch LSIG solid-state electronic release provides long-time overload, selective short-circuit, instantaneous short-circuit and earth-fault protection. The generator-focused Ekip G platform makes the breaker particularly suitable for installations where reliable protection of generators and associated distribution equipment is required.

With a 1250 A rated uninterrupted current, an S performance level and a rated ultimate short-circuit breaking capacity of 85 kA at 400/415 V AC, the 1SDA071600R1 is engineered for substantial power distribution duties. It operates at rated voltages up to 690 V AC, provides a 66 kA short-time withstand current for 1 second and maintains a 66 kA ultimate breaking capacity at 690 V AC.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for generator and low-voltage power distribution applications.
• 1250 A rated uninterrupted current for demanding industrial and commercial electrical systems.
• Four-pole configuration with a neutral pole rated at 100% of uninterrupted current.
• Advanced Ekip G Hi-Touch LSIG electronic trip unit with overload, short-circuit and earth-fault protection.
• 85 kA ultimate breaking capacity at 400/415 V AC for high fault-level installations.
• 66 kA short-time withstand current for 1 second supports selective protection strategies.
• Suitable for IT networks up to 690 V.
• Fixed installation with rear horizontal flat terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E2.2S series.
• 1250 A rated uninterrupted current.
• Four-pole air circuit breaker.
• Ekip G Hi-Touch LSIG solid-state electronic protection release.
• Long-time overload protection (L).
• Selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Integrated earth-fault protection (G).
• 85 kA ultimate breaking capacity at 400/415 V AC.
• 66 kA ultimate breaking capacity at 690 V AC.
• 66 kA rated short-time withstand current for 1 second.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Fixed mounting configuration with rear horizontal flat terminals.
• Fitted with four auxiliary changeover contacts and circuit-breaker open/closed position indication.

Advanced Generator and Power Distribution Protection

Air circuit breakers such as the ABB SACE Emax 2 E2.2S provide switching, isolation and protection for high-current low-voltage circuits. They are commonly installed in generator switchboards, main distribution assemblies, incoming feeders and bus-coupler applications where dependable interruption of overload, short-circuit and earth-fault currents is essential for equipment protection and continuity of supply.

The Ekip G Hi-Touch LSIG electronic trip unit combines advanced generator-oriented functionality with configurable long-time, short-time, instantaneous and earth-fault protection. Together with the high breaking capacity of the E2.2S platform, this enables the breaker to protect generators and associated distribution circuits while supporting effective coordination and selective operation within complex electrical networks.

Typical Applications

• Generator protection and generator switchboards.
• Low-voltage main distribution switchboards.
• Industrial power generation and distribution systems.
• Incoming and outgoing feeder protection.
• Bus-coupler and distribution circuit applications.
• Critical power and standby generation systems.
• Data centres and infrastructure power systems.
• Industrial installations with high prospective short-circuit currents.