1SDA072682R1 ABB E1.2B 630 Ekip Dip LSI 4P WMP Air Circuit Breaker

Why Choose the ABB E1.2B 630 Ekip Dip LSI 4p WMP Air Circuit Breaker?

The ABB 1SDA072682R1 is a compact and dependable SACE Emax 2 E1.2B air circuit breaker designed for protection and switching in low-voltage power distribution systems. Rated at 630 A, this four-pole breaker combines ABB's E1.2 frame with an Ekip Dip LSI electronic trip unit, providing adjustable Long-time, Short-time and Instantaneous protection against overload and short-circuit conditions.

As part of the ABB SACE Emax 2 range, the E1.2B 630 is engineered for compact switchboards while providing strong electrical performance. The B performance level offers a rated ultimate short-circuit breaking capacity of 42 kA at 400–440 V AC, with a rated operational voltage of up to 690 V AC and rated insulation voltage of 1000 V AC.

This model is supplied as a four-pole withdrawable moving part (WMP) for use with the appropriate fixed part. Its Ekip Dip LSI release uses DIP-switch adjustment and provides Long-time overload protection, selective Short-time protection and Instantaneous short-circuit protection, making the breaker well suited to coordinated industrial and commercial power-distribution systems.

Key Advantages

• Compact 630 A air circuit breaker for low-voltage power distribution.
• Four-pole configuration for switching and protecting four-conductor systems.
• Ekip Dip LSI electronic trip unit provides Long-time, Short-time and Instantaneous protection.
• 42 kA ultimate breaking capacity at 400–440 V AC for dependable short-circuit protection.
• Rated for operation at up to 690 V AC.
• DIP-switch adjustment provides straightforward configuration of the electronic protection functions.
• Withdrawable moving-part construction supports efficient switchboard servicing and maintenance.
• Part of ABB's established SACE Emax 2 air circuit breaker platform.

Key Features

• ABB SACE Emax 2 E1.2B air circuit breaker.
• 630 A rated uninterrupted current.
• 4-pole configuration.
• Ekip Dip LSI solid-state electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) selective short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Long-time protection adjustable from 0.4–1 × In.
• Instantaneous protection adjustable from 1.5–15 × In.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• 42 kA Icu at 400–440 V AC.
• Withdrawable moving-part configuration for switchboard applications.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2 protect low-voltage distribution circuits against damaging overload and short-circuit conditions while providing a robust switching point within the electrical system. The Ekip Dip LSI electronic release adds Short-time protection to the Long-time and Instantaneous functions, allowing improved selectivity and coordination between protective devices in multi-level distribution networks.

The E1.2B platform combines a compact Emax 2 frame with a 630 A current rating and 42 kA short-circuit breaking capacity. Its withdrawable construction allows the moving breaker portion to be separated from the corresponding fixed part, supporting inspection, maintenance and replacement in industrial, commercial and infrastructure switchboard installations.

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 selective LSI protection.