1SDA073639R1 ABB E2.2S 250 Ekip Dip LSI 4p F HR Emax 2 Air Circuit Breaker

Why Choose the ABB E2.2S 250 Ekip Dip LSI 4p F HR Emax 2 Air Circuit Breaker?

The ABB E2.2S 250 Ekip Dip LSI 4p F HR, order code 1SDA073639R1, is a 250 A four-pole fixed air circuit breaker from the ABB SACE Emax 2 range. Designed for low-voltage power distribution, it combines the E2.2 frame with S-level breaking performance, rear horizontal terminals and the electronic Ekip Dip LSI trip unit.

This Emax 2 circuit breaker provides an ultimate short-circuit breaking capacity of 85 kA at 440 V AC together with a rated short-time withstand current of 66 kA for 1 s. This combination makes it suitable for industrial, commercial and infrastructure distribution systems where substantial prospective fault currents require robust interruption and withstand performance.

The fitted Ekip Dip LSI electronic protection release provides long-time overload protection (L), short-time short-circuit protection (S) and instantaneous short-circuit protection (I). The inclusion of short-time protection provides additional selectivity options compared with an LI-only release, helping coordinate the breaker with downstream protective devices in low-voltage distribution networks.

Key Advantages

• 250 A four-pole air circuit breaker for low-voltage power distribution.
• 85 kA ultimate short-circuit breaking capacity at 440 V AC.
• 66 kA rated short-time withstand current for 1 s.
• Ekip Dip LSI electronic trip unit provides overload, short-time and instantaneous protection.
• Short-time protection supports improved selectivity and coordination with downstream protective devices.
• Four-pole configuration for three-phase distribution systems incorporating a neutral conductor.
• Fixed construction for permanent switchboard installation.
• Rear horizontal terminals provide a practical connection arrangement for low-voltage assemblies.

Key Features

• ABB SACE Emax 2 E2.2S series.
• 250 A rated uninterrupted current (Iu).
• Four-pole configuration.
• Fixed installation.
• Rear horizontal (HR) terminals.
• Ekip Dip LSI electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• 85 kA Icu at 440 V AC.
• 66 kA Icw for 1 s.
• Electronic protection settings configured using DIP switches.
• Designed for fixed power-distribution applications.
• Part of ABB's modular SACE Emax 2 air circuit breaker platform.

Selective Electronic Protection for Low-Voltage Distribution

The ABB E2.2S 250 combines the switching and fault-interruption capabilities of an Emax 2 air circuit breaker with the electronic protection functions of the Ekip Dip LSI release. Long-time protection responds to sustained overload conditions, short-time protection provides controlled operation during short-circuit events to support selective coordination, and instantaneous protection provides rapid interruption of severe faults.

With an ultimate breaking capacity of 85 kA at 440 V AC and a short-time withstand rating of 66 kA for 1 s, the breaker is designed for distribution systems with substantial prospective fault levels. Its fixed four-pole construction and rear horizontal terminals provide a practical arrangement for permanent installation in compatible low-voltage switchboards and power distribution assemblies.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming and distribution circuit protection.
• Four-pole power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Infrastructure power distribution.
• Generator and transformer distribution systems.
• Installations requiring selective electronic overload and short-circuit protection.