1SDA072781R1 ABB E1.2N 1000 Ekip Dip LI 4p WMP Air Circuit Breaker

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

The ABB E1.2N 1000 Ekip Dip LI 4p WMP, order code 1SDA072781R1, 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 solid-state electronic trip unit for dependable overload and instantaneous short-circuit protection.

The Ekip Dip LI trip unit provides long-time overload and instantaneous short-circuit protection, with adjustable settings configured through DIP switches. This enables the breaker to be coordinated with the requirements of the electrical network while helping protect conductors, switchgear and connected equipment against damaging overcurrents and severe fault conditions.

The E1.2N performance level provides an ultimate short-circuit breaking capacity of 66 kA at 400/415 V AC and 50 kA at 690 V AC, together with a rated short-time withstand current of 50 kA for 1 s. Its withdrawable construction enables the moving breaker to be separated from the corresponding fixed part for servicing, while the four-pole configuration supports switching and protection across four conductors.

Key Advantages

• 1000 A rated current for demanding low-voltage distribution systems.
• Four-pole configuration for comprehensive switching and circuit protection.
• Ekip Dip LI electronic trip unit with adjustable protection settings.
• Long-time overload and instantaneous short-circuit protection.
• 66 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• 50 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part design supports efficient inspection, servicing and replacement.
• Part of the modular ABB SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E1.2N 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 protection adjustable from 0.4–1 × In.
• Instantaneous protection adjustable from 1.5–15 × In.
• Protection settings configured through DIP switches.
• Withdrawable execution for use with the corresponding Emax 2 fixed part.
• Fitted with four auxiliary contacts.
• Circuit breaker open/closed position indication.

High-Performance LI Protection for Low-Voltage Distribution

ABB SACE Emax 2 air circuit breakers are engineered to protect low-voltage electrical distribution systems against damaging overcurrents while providing dependable switching and isolation. The Ekip Dip LI release combines adjustable long-time overload protection with instantaneous short-circuit protection, providing straightforward electronic protection for industrial and commercial distribution networks.

The withdrawable E1.2 construction is particularly useful in switchboards where maintainability and continuity of service are important. The moving breaker can be separated from the corresponding fixed part for inspection or servicing, while the E1.2N performance level provides substantial short-circuit capability for demanding electrical installations.

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 high-performance LI protection.