1SDA059368R1 ABB E3H 1000 PR122/P-LSIG 1000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059368R1 E3H 1000 Air Circuit Breaker?

The ABB 1SDA059368R1 is a high-performance SACE Emax E3H 1000 air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. Configured as E3H 1000 PR122/P-LSIG In=1000A 4p W MP, it combines a 1000 A rated current, four-pole construction and ABB's PR122/P-LSIG electronic overcurrent release.

The PR122/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, delivering comprehensive electronic protection against overload, short-circuit and earth-fault conditions. The E3H performance class provides a rated short-circuit breaking capacity of 100 kA at 400 V AC, 50 Hz, making this breaker suitable for distribution systems with demanding prospective fault levels.

The 1SDA059368R1 is supplied as a four-pole withdrawable moving part for use with the corresponding SACE Emax fixed part. It is fitted with four change-over auxiliary contacts and circuit-breaker open/closed position indication, providing useful status signalling while its withdrawable construction supports efficient inspection, testing and servicing.

Key Advantages

• High-performance 1000 A E3H air circuit breaker for demanding low-voltage distribution.
• Four-pole configuration for switching and protection across four conductors.
• Advanced PR122/P-LSIG electronic overcurrent release.
• Long-time, short-time, instantaneous and ground-fault protection.
• Withdrawable moving-part construction supports efficient maintenance and servicing.
• 100 kA short-circuit breaking capacity at 400 V AC, 50 Hz.
• Fitted with four change-over auxiliary contacts and open/closed position indication.
• Part of the proven ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E3H 1000 air circuit breaker moving part.
• 1000 A rated permanent current.
• Four-pole construction.
• PR122/P-LSIG electronic trip unit.
• LSIG protection functions for long-time, short-time, instantaneous and ground-fault protection.
• Withdrawable (W) execution.
• Moving-part (MP) configuration.
• 690 V rated voltage.
• 100 kA short-circuit breaking capacity at 400 V AC, 50 Hz.
• Four change-over auxiliary contacts.
• Integrated circuit-breaker open/closed position indication.

Reliable Protection for Low-Voltage Power Distribution

The ABB SACE Emax E3H is engineered to protect high-current low-voltage distribution circuits while providing dependable switching and isolation. Its PR122/P-LSIG electronic release combines long-time overload protection, short-time selective protection, instantaneous short-circuit protection and ground-fault protection, helping safeguard feeders, busbars, switchgear and connected electrical equipment.

The withdrawable construction of the 1SDA059368R1 makes it particularly suitable for switchboards where maintainability and operational flexibility are priorities. When installed with the corresponding SACE Emax fixed part, the circuit-breaker moving assembly can be withdrawn for inspection, testing or servicing while permanent switchboard connections remain installed.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process plant switchgear.
• Protection of high-current feeders and distribution circuits.
• Four-pole distribution systems requiring ground-fault protection.
• Withdrawable switchgear with demanding short-circuit protection requirements.