1SDA072048R1 ABB E1.2N 250 Ekip Hi-Touch LSI 3p WMP Air Circuit Breaker

Why Choose the ABB E1.2N 250 Ekip Hi-Touch LSI 3p WMP Air Circuit Breaker?

The ABB E1.2N 250 Ekip Hi-Touch LSI 3p WMP, order code 1SDA072048R1, is a compact three-pole withdrawable air circuit breaker (ACB) from the ABB SACE Emax 2 range. Rated at 250 A, it combines the compact E1.2 frame with N-level short-circuit performance and advanced electronic protection for industrial, commercial and infrastructure low-voltage distribution systems.

This Emax 2 circuit breaker incorporates the advanced Ekip Hi-Touch LSI electronic trip unit, providing long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. The Hi-Touch platform supports sophisticated protection, measurement and monitoring functions, while the LSI configuration enables selective coordination between upstream and downstream protective devices.

The E1.2N 250 is supplied as a three-pole withdrawable moving portion (WMP). ABB specifies an ultimate short-circuit breaking capacity of 66 kA at 440 V AC and a rated short-time withstand current of 50 kA for 1 s, providing strong fault performance in a compact breaker designed for maintainable withdrawable switchboard installations.

Key Advantages

• Compact 250 A rated current within the ABB SACE Emax 2 E1.2 frame.
• Three-pole configuration for three-phase low-voltage power distribution.
• Advanced Ekip Hi-Touch LSI electronic trip unit for sophisticated overcurrent protection.
• Long-time, short-time and instantaneous protection supports effective selective coordination.
• 66 kA ultimate short-circuit breaking capacity at 440 V AC.
• 50 kA short-time withstand current for 1 s supports selective protection strategies.
• Withdrawable moving-portion construction supports inspection, servicing and breaker replacement.
• Suitable for critical distribution systems where advanced protection and maintainability are important.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker.
• 250 A rated uninterrupted current.
• Three-pole configuration.
• Ekip Hi-Touch LSI electronic trip unit.
• Long-time overload (L) protection.
• Short-time selective short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• 66 kA ultimate short-circuit breaking capacity at 440 V AC.
• 50 kA rated short-time withstand current for 1 s.
• N performance level within the Emax 2 E1.2 frame.
• Withdrawable moving portion (WMP) execution.
• Designed to operate with the corresponding E1.2 withdrawable fixed part.
• Advanced Ekip protection platform for demanding low-voltage distribution applications.

Advanced Selective Protection in a Withdrawable Emax 2 Breaker

Air circuit breakers such as the ABB SACE Emax 2 E1.2N provide protection, switching and isolation for low-voltage electrical networks. A withdrawable breaker arrangement is particularly useful where maintainability and continuity are important, as the moving portion can be disconnected from its corresponding fixed part and removed for servicing, inspection or replacement without dismantling the switchboard's permanent main connections.

The Ekip Hi-Touch LSI trip unit combines long-time overload, short-time selective and instantaneous short-circuit protection. Together with the breaker's 250 A current rating, 66 kA ultimate breaking capacity at 440 V AC and 50 kA short-time withstand capability, the 1SDA072048R1 is well suited to distribution systems requiring advanced electronic protection, selective coordination and withdrawable construction.

Typical Applications

• Industrial low-voltage distribution switchboards.
• Commercial building power distribution.
• Manufacturing and process-control facilities.
• Critical power distribution installations.
• Data centres and high-availability infrastructure.
• Incoming and feeder circuit protection.
• Distribution systems requiring selective LSI protection.
• Switchboards requiring withdrawable breakers for easier servicing and replacement.