1SDA072706R1 ABB Emax 2 E1.2N 630 Ekip Touch LSIG 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072706R1 Emax 2 E1.2N 630 Air Circuit Breaker?

The ABB 1SDA072706R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker designed for protection, switching and management of low-voltage electrical distribution systems. Configured as the E1.2N 630 Ekip Touch LSIG 4p WMP, this four-pole withdrawable moving part combines a 630 A rated uninterrupted current with ABB's advanced Ekip Touch LSIG electronic protection release.

As part of the ABB SACE Emax 2 range, this circuit breaker provides comprehensive LSIG protection covering long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. The Ekip Touch platform also supports advanced measurement, monitoring and system-integration capabilities, making this configuration suitable for sophisticated industrial, commercial and infrastructure distribution systems.

The E1.2N 630 is rated for operation up to 690 V AC and provides an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and 50 kA at 500–690 V AC. Its four-pole withdrawable construction, 100% rated neutral pole and removable moving-part format provide a flexible solution for switchboards where comprehensive protection and convenient maintenance are required.

Key Advantages

• Compact 630 A Emax 2 air circuit breaker for low-voltage power distribution.
• Four-pole configuration with neutral pole rated at 100% of Iu.
• Advanced Ekip Touch LSIG electronic protection release.
• Integrated long-time, short-time, instantaneous and ground-fault protection.
• 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 50 kA short-time withstand current for 1 s supports selective protection strategies.
• Withdrawable moving-part construction supports efficient switchboard inspection and maintenance.

Key Features

• ABB SACE Emax 2 E1.2 air circuit breaker platform.
• 630 A rated uninterrupted current.
• Four-pole configuration.
• N short-circuit performance level.
• Ekip Touch LSIG electronic protection release.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• 66 kA Icu at 400–440 V AC.
• 50 kA Icu at 500–690 V AC.
• 50 kA Icw for 1 s and 30 kA for 3 s.
• Rated insulation voltage of 1000 V AC.
• Rated impulse withstand voltage of 12 kV.
• Four auxiliary change-over contacts and circuit-breaker open/closed indication.
• Withdrawable moving-part format for compatible Emax 2 switchboards.

Comprehensive Protection for Low-Voltage Power Distribution

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

The Ekip Touch LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection with advanced measurement and monitoring capabilities. Together with the compact E1.2 frame, four-pole configuration and withdrawable architecture, the ABB 1SDA072706R1 provides a flexible solution for distribution switchboards requiring comprehensive protection, selectivity and convenient maintenance.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial electrical distribution systems.
• Manufacturing and process facilities.
• Commercial building power distribution.
• Infrastructure and utility electrical systems.
• Critical-power systems requiring ground-fault protection.