1SDA072749R1 ABB E1.2N 800 Ekip Hi-Touch LSIG 4P WMP Air Circuit Breaker

Why Choose the ABB E1.2N 800 Ekip Hi-Touch LSIG 4p WMP Air Circuit Breaker?

The ABB 1SDA072749R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker designed for advanced protection, switching and power management in low-voltage electrical distribution systems. Rated at 800 A, this four-pole withdrawable breaker combines ABB's compact E1.2N frame with the advanced Ekip Hi-Touch LSIG electronic trip unit, providing comprehensive protection against overload, short-circuit and earth-fault conditions.

The E1.2N performance level delivers a rated ultimate short-circuit breaking capacity of 66 kA at 380–440 V AC and 50 kA at 500–690 V AC. With a rated operational voltage of 690 V AC, the breaker is suited to demanding industrial, commercial and infrastructure distribution networks where high fault-current capability, selectivity and dependable protection are required.

This model is supplied as a four-pole withdrawable moving part (WMP) for connection through the appropriate separate Emax 2 chassis. The Ekip Hi-Touch LSIG release combines Long-time, Short-time, Instantaneous and Ground-fault protection with ABB's advanced measurement and power-management functionality, while four change-over auxiliary contacts and breaker open/closed indication support integration into modern switchboards and automation systems.

Key Advantages

• High-performance 800 A air circuit breaker for demanding low-voltage distribution systems.
• Four-pole configuration for switching and protecting four-conductor circuits.
• Ekip Hi-Touch LSIG electronic trip unit provides comprehensive overload, short-circuit and earth-fault protection.
• 66 kA ultimate breaking capacity at 380–440 V AC for high prospective fault-current applications.
• 50 kA breaking capacity at 500–690 V AC extends robust protection to higher-voltage distribution systems.
• Advanced measurement and power-management functionality supports sophisticated electrical-system supervision.
• Integrated Ground-fault (G) protection provides protection against earth-fault conditions.
• Withdrawable construction supports efficient inspection, servicing and replacement.
• Four change-over auxiliary contacts facilitate status signalling and control-system integration.

Key Features

• ABB SACE Emax 2 E1.2N air circuit breaker.
• 800 A rated uninterrupted current.
• 4-pole configuration.
• Ekip Hi-Touch 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.
• 66 kA Icu at 380–440 V AC.
• 50 kA Icu at 500–690 V AC.
• Overload protection adjustable from 320–800 A.
• Short-time delayed short-circuit protection adjustable from 480–8000 A.
• Instantaneous short-circuit protection adjustable from 1200–12000 A.
• Four change-over auxiliary contacts fitted.
• Withdrawable moving-part configuration for switchboard applications.

Advanced Protection and Power Management

The ABB SACE Emax 2 E1.2N provides a robust switching and protection point within low-voltage power-distribution systems. Its Ekip Hi-Touch LSIG release combines Long-time overload, Short-time selective, Instantaneous short-circuit and Ground-fault protection, enabling comprehensive protection against the principal overcurrent and earth-fault conditions encountered in industrial and commercial electrical networks.

With an 800 A current rating, up to 66 kA ultimate short-circuit breaking capacity and advanced Ekip Hi-Touch functionality, the breaker is well suited to sophisticated power-management applications. Its withdrawable construction allows the moving breaker portion to be separated from the corresponding fixed chassis, supporting efficient maintenance and replacement where service continuity and system availability are important.

Typical Applications

• Main and distribution switchboards.
• Industrial low-voltage power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process-control facilities.
• Data centres and critical-power installations.
• Infrastructure and utility distribution systems.
• Transformer secondary and generator distribution.
• Power-management systems requiring advanced measurement and LSIG protection.