1SDA056367R1 ABB E3H800 PR123/P-LSIG 800A 4P Withdrawable Air Circuit Breaker

Why Choose the ABB E3H800 PR123/P-LSIG 800A 4P Withdrawable Air Circuit Breaker?

The ABB E3H800 PR123/P-LSIG, order code 1SDA056367R1, is a high-performance SACE Emax air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. This E3H breaker has a rated current of 800 A, a four-pole configuration and ABB's advanced PR123/P-LSIG electronic overcurrent release.

Designed as the moving portion of a withdrawable circuit-breaker installation, the E3H800 enables convenient isolation, inspection and servicing within compatible SACE Emax switchgear. The H performance level provides a rated ultimate short-circuit breaking capacity of 100 kA, making this configuration suitable for industrial and infrastructure distribution systems with substantial prospective fault currents.

The PR123/P-LSIG R800 release provides comprehensive long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with its 800 A rating, four-pole architecture and withdrawable construction, the 1SDA056367R1 is well suited to main incomers, feeders and critical distribution circuits requiring advanced electronic protection and service-friendly switchgear integration.

Key Advantages

• High-performance 800 A SACE Emax air circuit breaker moving part.
• Four-pole configuration for suitable three-phase systems incorporating a neutral conductor.
• PR123/P-LSIG electronic overcurrent release provides comprehensive overload, short-circuit and earth-fault protection.
• Withdrawable construction supports convenient isolation, inspection and switchboard maintenance.
• H performance level with 100 kA Icu for demanding low-voltage distribution systems.
• Fitted with four auxiliary contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E3H air circuit breaker moving part.
• 800 A rated current.
• Four-pole configuration.
• PR123/P-LSIG R800 electronic overcurrent release.
• LSIG protection functions for long-time, short-time, instantaneous and earth-fault protection.
• H short-circuit performance level.
• Rated ultimate short-circuit breaking capacity of 100 kA.
• Withdrawable moving-part construction for compatible SACE Emax switchgear.
• Designed for connection through the corresponding E3 fixed part.
• Four auxiliary contacts for circuit-breaker status signalling.
• Integrated circuit-breaker open/closed position indication.

Reliable High-Current Protection for Low-Voltage Distribution

Air circuit breakers such as the ABB SACE Emax E3H800 protect electrical distribution systems against damaging overload, short-circuit and earth-fault conditions. The PR123/P-LSIG electronic release combines long-time, short-time, instantaneous and ground-fault protection functions, providing comprehensive protection for important low-voltage distribution circuits.

The withdrawable moving-part design is particularly valuable in industrial switchboards where serviceability and operational flexibility are important. The breaker can be isolated from its compatible fixed part for inspection or maintenance, while its 800 A rating, four-pole architecture and H-level short-circuit performance provide dependable protection for demanding power distribution systems.

Typical Applications

• Main incoming protection for industrial low-voltage switchboards.
• High-capacity feeder and distribution circuit protection.
• Manufacturing plants and process facilities.
• Commercial and infrastructure power distribution systems.
• Motor control centres and large electrical distribution assemblies.
• Withdrawable switchgear requiring comprehensive overload, short-circuit and earth-fault protection.