1SDA072733R1 ABB E1.2C 800 Ekip Dip LSIG 4P WMP Air Circuit Breaker

Why Choose the ABB E1.2C 800 Ekip Dip LSIG 4p WMP Air Circuit Breaker?

The ABB 1SDA072733R1 is a compact, high-performance SACE Emax 2 E1.2C air circuit breaker designed for protection and switching in low-voltage electrical distribution systems. Rated at 800 A, this four-pole withdrawable breaker combines ABB's E1.2C frame with an Ekip Dip LSIG electronic trip unit, providing Long-time, Short-time, Instantaneous and Ground-fault protection.

As part of the advanced ABB SACE Emax 2 range, the E1.2C 800 combines compact switchboard integration with strong short-circuit performance. It provides a rated ultimate short-circuit breaking capacity of 50 kA at 380–440 V AC, with 42 kA at 500–690 V AC, making it suitable for demanding industrial, commercial and infrastructure distribution networks.

This model is supplied as a four-pole withdrawable moving part (WMP) for use with the appropriate Emax 2 fixed part. Its Ekip Dip LSIG release provides adjustable electronic protection through straightforward DIP-switch settings, while integrated earth-fault protection and four change-over auxiliary contacts support dependable operation and switchboard integration.

Key Advantages

• Compact 800 A air circuit breaker for low-voltage power distribution.
• Four-pole configuration for switching and protecting four-conductor systems.
• Ekip Dip LSIG electronic trip unit provides overload, selective short-circuit, instantaneous and earth-fault protection.
• 50 kA ultimate breaking capacity at 380–440 V AC.
• Integrated Ground-fault (G) protection provides protection against earth-fault conditions.
• DIP-switch adjustment provides straightforward configuration of protection settings.
• Withdrawable moving-part construction supports efficient switchboard servicing and maintenance.
• Four change-over auxiliary contacts support status signalling and control-system integration.

Key Features

• ABB SACE Emax 2 E1.2C air circuit breaker.
• 800 A rated uninterrupted current.
• 4-pole configuration.
• Ekip Dip LSIG solid-state electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) selective short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• 50 kA Icu at 380–440 V AC.
• Overload protection adjustable from 0.4–1 × In.
• Instantaneous short-circuit protection adjustable from 1.5–15 × In.
• Ground-fault protection adjustable from 0.1–1 × In.
• Withdrawable moving-part configuration for switchboard applications.

Comprehensive LSIG Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2 protect low-voltage distribution circuits against damaging overload, short-circuit and earth-fault conditions while providing a robust switching point within the electrical system. The Ekip Dip LSIG release combines Long-time, Short-time, Instantaneous and Ground-fault protection, enabling effective protection coordination across multi-level distribution networks.

The E1.2C platform combines a compact Emax 2 frame with an 800 A current rating, 50 kA breaking capacity at 380–440 V AC and 42 kA short-time withstand capability. Its withdrawable construction allows the moving breaker portion to be separated from the corresponding fixed part, supporting efficient inspection, servicing and replacement in installations where maintainability and continuity are important.

Typical Applications

• Main and distribution switchboards.
• Industrial low-voltage power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process-control facilities.
• Infrastructure and utility installations.
• Transformer secondary distribution.
• Generator and auxiliary power distribution systems.
• Four-pole distribution circuits requiring integrated earth-fault protection.