1SDA072321R1 ABB E2.2H 1250 Ekip Dip LI 3p WMP Air Circuit Breaker

Why Choose the ABB E2.2H 1250 Ekip Dip LI 3p WMP Air Circuit Breaker?

The ABB E2.2H 1250 Ekip Dip LI 3p WMP, order code 1SDA072321R1, is a high-performance three-pole air circuit breaker (ACB) moving part from the ABB SACE Emax 2 range, designed for protection and switching in demanding low-voltage electrical distribution systems. Combining the E2.2H frame with a 1250 A rated current and ABB's Ekip Dip LI electronic trip unit, it provides dependable protection for industrial, commercial and infrastructure power networks.

The breaker uses a withdrawable construction that supports efficient inspection, servicing and replacement within compatible Emax 2 switchgear. Its Ekip Dip LI solid-state release provides long-time overload and instantaneous short-circuit protection, helping protect cables, busbars and connected equipment against damaging overcurrents.

With a rated operational voltage of up to 690 V AC and an ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC, the E2.2H 1250 is engineered for installations requiring substantial fault-current interruption capability. The breaker is supplied with four auxiliary change-over contacts for status signalling and is suitable for integration into modern low-voltage switchboards and power distribution assemblies.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding power distribution applications.
• 1250 A rated current for industrial, commercial and infrastructure electrical systems.
• 100 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• Ekip Dip LI electronic trip unit provides overload and instantaneous short-circuit protection.
• Three-pole configuration for three-phase electrical distribution networks.
• Withdrawable moving-part design supports efficient switchboard inspection and maintenance.
• Four auxiliary change-over contacts provide breaker position and status signalling capability.
• ABB Emax 2 architecture combines high breaking performance with flexible switchgear integration.

Key Features

• ABB SACE Emax 2 E2.2H air circuit breaker platform.
• 1250 A rated current.
• Three-pole circuit breaker configuration.
• Ekip Dip LI solid-state electronic protection release.
• Long-time overload and instantaneous short-circuit protection functions.
• 100 kA Icu at 400/415 V AC.
• 85 kA Icu at 500 V AC.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Withdrawable moving-part construction for compatible Emax 2 switchgear.
• Four auxiliary change-over contacts.
• Optional motor operating mechanism.
• Designed and tested for low-voltage circuit protection in accordance with IEC 60947-2.

High-Performance Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage electrical networks by interrupting overload and short-circuit currents before they can damage cables, busbars, switchgear or connected equipment. The E2.2H performance level provides particularly high fault-current interruption capability, making this breaker suitable for demanding main distribution and high-current feeder applications.

The Ekip Dip LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the withdrawable Emax 2 architecture, this allows the 1SDA072321R1 to provide dependable circuit protection while supporting practical maintenance and servicing within compatible switchboard installations.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial building electrical distribution.
• Data centres and critical power infrastructure.
• Utility and infrastructure switchgear.
• Transformer and generator distribution systems.
• High-current incomer and feeder protection.