1SDA072936R1 ABB E2.2N 1250 Ekip Touch LSIG 4p WMP Air Circuit Breaker

Why Choose the ABB E2.2N 1250 Ekip Touch LSIG 4p WMP Air Circuit Breaker?

The ABB 1SDA072936R1 is a high-performance SACE Emax 2 E2.2N air circuit breaker rated at 1250 A, designed for reliable protection and control of low-voltage electrical distribution systems. This four-pole withdrawable moving-part breaker incorporates the advanced Ekip Touch LSIG electronic trip unit, providing configurable long-time, short-time, instantaneous and ground-fault protection for demanding industrial, commercial and infrastructure installations.

As part of the advanced ABB SACE Emax 2 range, the E2.2N combines dependable short-circuit interruption with sophisticated electronic protection and an intuitive touchscreen interface. The Ekip Touch release enables straightforward configuration of protection parameters, helping engineers achieve effective selectivity, comprehensive fault protection and dependable distribution-system performance.

With a rated uninterrupted current of 1250 A, a four-pole configuration and rated operational voltage of 690 V AC, this E2.2N breaker is suitable for substantial low-voltage distribution systems. It provides an ultimate short-circuit breaking capacity of 66 kA at 400/415 V AC, maintained through 690 V AC, while its withdrawable construction facilitates inspection, servicing and replacement.

Key Advantages

• Advanced ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• 1250 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration with 100% neutral-pole current capability.
• Ekip Touch LSIG electronic trip unit provides overload, short-circuit and ground-fault protection.
• 66 kA ultimate breaking capacity at 400/415 V AC for robust fault protection.
• Withdrawable moving-part design supports efficient inspection, servicing and breaker replacement.

Key Features

• ABB SACE Emax 2 E2.2N frame.
• 1250 A rated current.
• 4-pole configuration.
• Ekip Touch LSIG solid-state electronic protection release.
• Long-time, short-time, instantaneous and ground-fault protection functions.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 66 kA short-time withstand current for 1 s.
• Four change-over auxiliary contacts and breaker open/closed position indication.

Advanced LSIG Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect low-voltage electrical networks against overloads, short circuits and ground faults while providing dependable switching and isolation of high-current circuits. The E2.2N platform combines strong fault-interruption capability with short-time withstand performance that supports selective coordination in demanding power distribution systems.

The Ekip Touch LSIG release combines adjustable long-time, selective short-time, instantaneous and ground-fault protection with an intuitive touchscreen interface. Configurable protection settings enable coordination with upstream and downstream protective devices, helping isolate faults selectively while minimising unnecessary interruption to unaffected sections of an electrical installation.

Typical Applications

• Main low-voltage switchboards and distribution boards.
• Industrial power distribution systems.
• Commercial buildings and infrastructure installations.
• Manufacturing plants and process facilities.
• Transformer secondary and main incoming protection.
• High-current feeders requiring selective short-circuit and ground-fault protection.