1SDA072862R1 ABB E1.2N 1600 Ekip Dip LSI 4p WMP Air Circuit Breaker

Why Choose the ABB E1.2N 1600 Ekip Dip LSI 4p WMP Air Circuit Breaker?

The ABB E1.2N 1600 Ekip Dip LSI 4p WMP, order code 1SDA072862R1, is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 E1.2 series, it combines a 1600 A rated current with an Ekip Dip LSI solid-state electronic trip unit for selective overload and short-circuit protection.

The Ekip Dip LSI trip unit provides long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. Protection thresholds are configured through DIP switches, with overload protection adjustable from 0.4–1 × In, short-time protection from 0.6–10 × In and instantaneous protection from 1.5–15 × In.

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 four-pole withdrawable construction supports maintainable switchboard installations where selective protection, high fault-current performance and convenient servicing are required.

Key Advantages

• 1600 A rated current for high-current low-voltage distribution systems.
• Four-pole configuration for comprehensive switching and circuit protection.
• Ekip Dip LSI electronic trip unit with adjustable protection thresholds.
• Long-time, short-time selective and instantaneous short-circuit protection.
• 66 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• 50 kA ultimate short-circuit breaking capacity at 690 V AC.
• 50 kA rated short-time withstand current for 1 s.
• Withdrawable moving-part design supports efficient inspection, servicing and replacement.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker moving part.
• 1600 A rated uninterrupted current.
• 4-pole construction.
• Ekip Dip LSI electronic protection release.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• Overload protection adjustable from 0.4–1 × In.
• Short-time protection adjustable from 0.6–10 × In.
• Instantaneous protection adjustable from 1.5–15 × In.
• Protection settings configured through DIP switches.
• 690 V AC rated operational voltage.
• Withdrawable execution for use with the corresponding Emax 2 fixed part.

Selective Protection for Low-Voltage Distribution

ABB SACE Emax 2 air circuit breakers are engineered to provide dependable switching and protection for demanding low-voltage electrical networks. The Ekip Dip LSI release combines adjustable long-time overload protection with short-time selective and instantaneous short-circuit protection, allowing effective coordination between protective devices across multiple levels of a distribution system.

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

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process facilities.
• Transformer and feeder protection.
• Generator distribution systems.
• Infrastructure and critical power installations.
• Withdrawable switchgear requiring selective LSI protection.