1SDA072771R1 ABB E1.2C 1000 Ekip Dip LI 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2C 1000 Ekip Dip LI 4p WMP Air Circuit Breaker?

The ABB E1.2C 1000 Ekip Dip LI 4p WMP, order code 1SDA072771R1, is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection and switching in low-voltage power distribution systems. As part of the advanced ABB SACE Emax 2 E1.2 series, it combines a 1000 A rated current with an Ekip Dip LI electronic trip unit for dependable overload and instantaneous short-circuit protection.

The Ekip Dip LI solid-state electronic trip unit provides long-time overload and instantaneous short-circuit protection. Adjustable protection settings allow the breaker to be coordinated with the requirements of the electrical network, helping protect cables, switchgear and connected equipment against damaging overcurrents and severe fault conditions.

The E1.2C performance level provides an ultimate short-circuit breaking capacity of 50 kA at 400–440 V AC, with a rated short-time withstand current of 42 kA for 1 s. Its withdrawable construction enables the moving breaker to be separated from the corresponding fixed chassis for inspection and servicing, while the four-pole configuration supports switching and protection across four conductors.

Key Advantages

• 1000 A rated current for substantial low-voltage distribution loads.
• Four-pole configuration for comprehensive switching and circuit protection.
• Ekip Dip LI electronic trip unit for reliable overload and short-circuit protection.
• Long-time overload and instantaneous short-circuit protection functions.
• 50 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 42 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part design simplifies inspection, maintenance and replacement.
• Part of the modular ABB SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E1.2C air circuit breaker moving part.
• 1000 A rated uninterrupted current.
• 4-pole construction.
• Ekip Dip LI solid-state electronic protection release.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• Overload release adjustable from 400–1000 A.
• Instantaneous short-circuit release adjustable from 1500–15000 A.
• Withdrawable execution for use with the corresponding Emax 2 fixed part.
• Fitted with four auxiliary changeover contacts.
• Circuit breaker open/closed position indication.
• Suitable for AC low-voltage distribution systems up to 690 V AC.

Reliable LI Protection for Low-Voltage Distribution

ABB SACE Emax 2 air circuit breakers are designed to protect low-voltage electrical distribution systems against damaging overcurrents while providing dependable switching and isolation. The Ekip Dip LI trip unit combines adjustable long-time overload protection with instantaneous short-circuit protection to help safeguard conductors, switchgear and connected electrical equipment.

The withdrawable E1.2 construction is particularly suitable for switchboards where maintainability and continuity of service are important. The moving breaker can be separated from its corresponding fixed chassis for inspection or maintenance, while the adjustable electronic release enables protection settings to be coordinated with the electrical installation.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Infrastructure and utility installations.
• Transformer and generator distribution systems.
• Critical power distribution equipment.
• Withdrawable switchgear requiring electronic LI protection.