1SDA072849R1 ABB E1.2B 1600 Ekip Hi-Touch LSIG 4P WMP Air Circuit Breaker

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

The ABB 1SDA072849R1 is a SACE Emax 2 E1.2B air circuit breaker designed for protection, switching and advanced management of low-voltage electrical distribution systems. Rated at 1600 A, this four-pole withdrawable breaker combines ABB's compact E1.2B frame with an Ekip 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. With a rated voltage of 690 V AC, the breaker is engineered for industrial, commercial and infrastructure distribution systems requiring dependable high-current switching, fault interruption and selective protection coordination.

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

Key Advantages

• High-current 1600 A air circuit breaker for demanding low-voltage distribution systems.
• Four-pole configuration for switching and protection of four-conductor systems.
• Ekip Hi-Touch LSIG electronic trip unit combines comprehensive circuit protection with advanced measurement and monitoring 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.
• Ekip Hi-Touch functionality supports advanced low-voltage power and energy management.
• Withdrawable construction facilitates inspection, servicing and breaker replacement.
• Four auxiliary contacts and breaker position indication support switchboard signalling and automation.

Key Features

• ABB SACE Emax 2 E1.2B air circuit breaker.
• 1600 A rated current.
• 4-pole configuration.
• Ekip Hi-Touch LSIG R 1600 solid-state electronic 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 voltage rating.
• 42 kA Icu at 440 V AC.
• 42 kA Icw for 1 s.
• Advanced measurement, monitoring and power-management capabilities.
• Four auxiliary contacts fitted.
• Circuit-breaker open/closed position indication.
• Withdrawable moving-part configuration for maintainable switchboard installations.
• IEC-approved SACE Emax 2 platform.

Advanced Protection and Power Management

The ABB SACE Emax 2 E1.2B combines high-current switching with the advanced capabilities of the Ekip 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 Hi-Touch platform adds advanced measurement and monitoring capabilities for sophisticated low-voltage distribution and energy-management 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 corresponding fixed chassis, supporting efficient maintenance and replacement where service continuity is 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 distribution.
• Power-management systems requiring advanced measurement and monitoring.
• Four-pole circuits requiring comprehensive LSIG protection and selective coordination.