1SDA072850R1 ABB E1.2B 1600 Ekip G Hi-Touch LSIG 4P WMP Air Circuit Breaker

Why Choose the ABB E1.2B 1600 Ekip G Hi-Touch LSIG 4p WMP Air Circuit Breaker?

The ABB 1SDA072850R1 is a SACE Emax 2 E1.2B air circuit breaker designed for generator protection and demanding low-voltage power-distribution systems. Rated at 1600 A, this four-pole withdrawable breaker combines ABB's compact E1.2B frame with an advanced Ekip G Hi-Touch LSIG electronic trip unit, providing Long-time, Short-time, Instantaneous and Ground-fault protection.

The E1.2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA at 440 V AC and a rated short-time withstand current of 42 kA for 1 s. Designed for low-voltage systems up to 690 V AC, this configuration combines substantial current capacity with the selective protection and generator-oriented functionality required in industrial, infrastructure and critical-power installations.

This model is supplied as a four-pole withdrawable moving part (WMP) for use with the appropriate Emax 2 fixed part. ABB specifies an Ekip G Hi-Touch LSIG R 1600 solid-state AC release together with four auxiliary contacts and circuit-breaker open/closed indication. The Ekip G Hi-Touch platform extends LSIG protection with advanced generator-oriented protection, measurement, monitoring and power-management capabilities.

Key Advantages

• High-current 1600 A air circuit breaker for generator and low-voltage distribution protection.
• Four-pole configuration for switching and protection of four-conductor systems.
• Ekip G Hi-Touch LSIG combines comprehensive electronic protection with generator-oriented functionality.
• 42 kA ultimate short-circuit breaking capacity at 440 V AC.
• 42 kA short-time withstand current for 1 s supports selective protection coordination.
• Integrated Ground-fault (G) protection provides protection against earth-fault conditions.
• Advanced measurement, monitoring and power-management capabilities support sophisticated electrical networks.
• Generator-oriented Ekip G functionality makes the breaker particularly suitable for generating-set applications.
• Withdrawable construction supports efficient inspection, maintenance and replacement.
• Four auxiliary contacts facilitate switchboard signalling and automation integration.

Key Features

• ABB SACE Emax 2 E1.2B air circuit breaker.
• 1600 A rated uninterrupted current.
• 4-pole configuration.
• Ekip G Hi-Touch LSIG R 1600 solid-state electronic AC release.
• Long-time (L) overload protection.
• Short-time (S) selective short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Ground-fault (G) protection.
• Generator-oriented protection and power-management functionality.
• 690 V AC rated operational voltage.
• 42 kA Icu at 440 V AC.
• 42 kA Icw for 1 s.
• Advanced measurement and monitoring functionality.
• Four auxiliary contacts fitted.
• Circuit-breaker open/closed position indication.
• Withdrawable moving-part construction for maintainable switchboard installations.

Advanced Generator Protection and Power Management

The ABB SACE Emax 2 E1.2B combines high-current switching with the advanced capabilities of the Ekip G Hi-Touch LSIG release. Long-time, Short-time, Instantaneous and Ground-fault functions provide comprehensive electronic protection against overload, short-circuit and earth-fault conditions, while the Ekip G platform adds generator-oriented functions for generating sets and complex power-generation systems.

With a 1600 A current rating, 42 kA ultimate short-circuit breaking capacity at 440 V AC and 42 kA short-time withstand capability for 1 s, the E1.2B is suited to installations requiring dependable fault performance and selective coordination. Its withdrawable construction allows the moving breaker portion to be separated from the appropriate fixed chassis, supporting efficient maintenance and replacement where continuity of electrical service is important.

Typical Applications

• Generator and generating-set protection.
• Standby and emergency power-generation systems.
• Main and distribution switchboards.
• Industrial low-voltage power distribution systems.
• Data centres and critical-power installations.
• Hospitals and essential-services power systems.
• Manufacturing and process-control facilities.
• Infrastructure and utility distribution systems.
• Generator-to-network and multi-source distribution architectures.
• Four-pole circuits requiring advanced LSIG protection, monitoring and power management.