1SDA056559R1 ABB E3V800 PR123/P-LSIG 800 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA056559R1 E3V 800 A Air Circuit Breaker?

The ABB 1SDA056559R1 is a high-performance SACE Emax E3V air circuit breaker (ACB) moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Identified as E3V800 PR123/P-LSIG In=800A 4P W MP, this four-pole withdrawable circuit breaker moving part combines an 800 A rated current with ABB’s advanced PR123/P-LSIG electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E3V800 is engineered for industrial, commercial and infrastructure power distribution applications requiring high fault-current interruption capability. The PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection, helping safeguard cables, busbars, transformers and connected equipment against overloads, short circuits and earth faults.

This version features a four-pole withdrawable moving-part construction for use with the corresponding ABB SACE Emax fixed part. The withdrawable design allows the breaker to be disconnected and removed for inspection or maintenance, while its E3V performance class makes it suitable for distribution systems where high breaking capacity and comprehensive four-pole protection are required.

Key Advantages

• High-performance 800 A air circuit breaker moving part for low-voltage power distribution.
• Advanced PR123/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• Four-pole configuration supports switching and protection across four conductors.
• Withdrawable moving-part design supports convenient switchboard servicing and maintenance.
• High-performance E3V frame for installations with demanding fault-current requirements.
• Fitted with four auxiliary contacts for status signalling and control integration.
• Open/closed position indication assists with breaker status monitoring.

Key Features

• ABB SACE Emax E3V frame.
• 800 A rated current.
• PR123/P-LSIG electronic trip unit.
• Four-pole configuration.
• Withdrawable moving-part design.
• Long-time overload protection.
• Short-time selective short-circuit protection.
• Instantaneous short-circuit protection.
• Integrated ground-fault protection.
• Four auxiliary contacts.
• Open/closed position indication.
• Designed for use with the appropriate ABB SACE Emax withdrawable breaker fixed part.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB E3V800 provide switching and automatic protection for high-current low-voltage electrical distribution systems. The PR123/P electronic release monitors electrical conditions and provides advanced protection functions to help safeguard cables, busbars, transformers and downstream equipment against damaging overload, short-circuit and ground-fault conditions.

The LSIG configuration combines long-time overload protection, short-time selective short-circuit protection, instantaneous short-circuit protection and ground-fault protection. Combined with the four-pole withdrawable construction, this makes the 1SDA056559R1 suitable for critical distribution systems requiring comprehensive protection together with convenient breaker isolation, inspection and replacement.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main incomer and high-current feeder protection.
• Four-pole power distribution circuits.
• Manufacturing and process plants.
• Commercial and infrastructure electrical systems.
• Transformer secondary distribution circuits.
• High-fault-level electrical installations.
• Switchboards requiring withdrawable air circuit breakers.
• Power distribution systems requiring selective LSIG protection.