1SDA072692R1 ABB Emax 2 E1.2C 630 Ekip Dip LSI 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072692R1 Emax 2 E1.2C 630 Air Circuit Breaker?

The ABB 1SDA072692R1 is a compact and reliable SACE Emax 2 E1.2C air circuit breaker designed for protection and switching in low-voltage electrical distribution systems. Configured as the E1.2C 630 Ekip Dip LSI 4p WMP, this four-pole withdrawable moving part combines a 630 A rated uninterrupted current with ABB's Ekip Dip LSI solid-state electronic protection release.

As part of the ABB SACE Emax 2 range, this circuit breaker provides LSI protection functions covering long-time overload, short-time short-circuit and instantaneous short-circuit protection. The addition of the short-time protection function makes this configuration particularly suitable for distribution systems where time-based selectivity between upstream and downstream protection devices is required.

The E1.2C 630 provides an ultimate short-circuit breaking capacity of 50 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 s. Its four-pole withdrawable moving-part construction supports efficient servicing and maintenance, while the breaker is supplied with four auxiliary contacts and circuit-breaker open/closed position indication.

Key Advantages

• Compact 630 A Emax 2 air circuit breaker for low-voltage distribution systems.
• Four-pole configuration for applications requiring four-conductor switching and protection.
• Ekip Dip LSI solid-state electronic release for dependable overcurrent protection.
• Long-time, short-time and instantaneous protection functions support coordinated distribution-system protection.
• 50 kA ultimate short-circuit breaking capacity at 440 V AC.
• 42 kA short-time withstand current for 1 s.
• Withdrawable moving-part construction supports convenient switchboard inspection and maintenance.

Key Features

• ABB SACE Emax 2 E1.2 air circuit breaker platform.
• 630 A rated uninterrupted current.
• Four-pole configuration.
• C short-circuit performance level.
• Ekip Dip LSI solid-state electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• 50 kA Icu at 440 V AC.
• 42 kA Icw for 1 s.
• Four auxiliary contacts fitted as standard on this configuration.
• Circuit-breaker open/closed position indication.
• Withdrawable moving-part format for compatible Emax 2 switchboards.

Selective Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2C provide switching and overcurrent protection for low-voltage electrical distribution systems. The electronic trip unit monitors circuit current and initiates interruption when configured protection thresholds are exceeded, helping protect conductors, switchgear and connected equipment against overload and short-circuit conditions.

The Ekip Dip LSI release adds short-time protection between the long-time overload and instantaneous short-circuit functions, allowing suitable systems to use time-delayed protection for improved selectivity between protective devices. Combined with the compact E1.2 frame and withdrawable construction, the ABB 1SDA072692R1 provides dependable protection with convenient maintenance access for modern distribution switchboards.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial electrical distribution systems.
• Manufacturing and process facilities.
• Commercial building power distribution.
• Infrastructure electrical installations.
• Distribution systems requiring selective short-circuit protection.