1SDA072686R1 ABB E1.2B 630 Ekip Touch LSIG 4p WMP Air Circuit Breaker

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

The ABB 1SDA072686R1 is a compact SACE Emax 2 E1.2B air circuit breaker (ACB) designed for comprehensive protection, switching and monitoring in low-voltage electrical distribution systems. Rated at 630 A, this four-pole breaker combines ABB’s E1.2B frame with an advanced Ekip Touch LSIG electronic trip unit providing long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.

As part of the ABB SACE Emax 2 air circuit breaker series, the E1.2B combines compact construction with configurable electronic protection and flexible switchboard integration. The Ekip Touch release provides a touchscreen interface for protection settings and monitoring, while the LSIG configuration adds integrated earth-fault protection to the long-time, short-time and instantaneous protection functions.

The 1SDA072686R1 is a four-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 630 A. The E1.2B performance level provides an ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 second, supporting dependable protection and selective coordination in commercial, industrial and infrastructure power distribution systems.

Key Advantages

• 630 A rated uninterrupted current for low-voltage main and feeder protection.
• 42 kA ultimate short-circuit breaking capacity at 440 V AC for robust fault interruption.
• 42 kA short-time withstand current for 1 second supports selective protection strategies.
• Advanced Ekip Touch LSIG electronic trip unit with touchscreen-based protection and monitoring.
• Long-time, short-time, instantaneous and earth-fault protection provides comprehensive circuit protection.
• Four-pole configuration is suited to three-phase four-wire distribution systems requiring neutral switching.
• Withdrawable mobile-part construction facilitates isolation, inspection, servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E1.2B series.
• 630 A rated uninterrupted current.
• Four-pole configuration.
• B short-circuit performance level.
• 42 kA Icu at 440 V AC.
• 42 kA Icw for 1 second.
• Ekip Touch LSIG solid-state electronic trip unit.
• LSIG protection provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection.
• Integrated earth-fault protection for enhanced distribution-system protection.
• Short-time protection supports selective coordination between protective devices.
• Withdrawable mobile part (WMP) configuration.
• Fitted with four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Designed for connection through the corresponding Emax 2 E1.2 fixed part.

Comprehensive LSIG Four-Pole Protection

The ABB SACE Emax 2 E1.2B provides compact air circuit breaker protection for low-voltage networks requiring dependable interruption of overload, short-circuit and earth-fault currents. With a rated current of 630 A, an ultimate breaking capacity of 42 kA at 440 V AC and a short-time withstand current of 42 kA for 1 second, this configuration combines compact switchboard integration with substantial fault-current capability.

The Ekip Touch LSIG electronic trip unit provides long-time overload, short-time delayed, instantaneous short-circuit and earth-fault protection. This comprehensive protection arrangement supports selective coordination while adding integrated earth-fault detection, and the four-pole configuration makes the breaker particularly suitable for three-phase four-wire electrical distribution systems.

Typical Applications

• Low-voltage main and sub-distribution switchboards.
• Three-phase four-wire electrical distribution systems.
• Commercial building power distribution.
• Industrial feeder and distribution protection.
• Transformer secondary distribution systems.
• Infrastructure and utility installations.
• Systems requiring selective short-circuit and earth-fault protection.
• Switchboards requiring withdrawable four-pole circuit breaker construction.