1SDA056527R1 ABB E3H3200 PR123/P-LSIG 3200 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA056527R1 E3H 3200 A Air Circuit Breaker?

The ABB 1SDA056527R1 is a high-performance SACE Emax E3H air circuit breaker (ACB) designed for switching and protection in high-current low-voltage electrical distribution systems. Identified as E3H3200 PR123/P-LSIG In=3200A 4P W MP, this four-pole withdrawable moving part combines a 3200 A rated uninterrupted current with ABB’s advanced PR123/P-LSIG electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E3H3200 is engineered for demanding industrial, commercial and infrastructure power distribution applications. 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 appropriate ABB Emax fixed part. It is rated for operation up to 690 V AC, with an ultimate short-circuit breaking capacity of 100 kA at 400–415 V AC and a rated short-time withstand current of 75 kA for 1 s, making it suitable for high-power distribution systems requiring comprehensive four-pole protection and convenient breaker isolation for servicing.

Key Advantages

• Heavy-duty 3200 A air circuit breaker for high-current power distribution.
• Advanced PR123/P-LSIG electronic protection 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 efficient switchboard servicing and maintenance.
• 100 kA ultimate short-circuit breaking capacity at 400–415 V AC.
• 75 kA rated short-time withstand current for 1 s.
• Fitted with four auxiliary contacts and open/closed circuit breaker position indication.

Key Features

• ABB SACE Emax E3H frame.
• 3200 A rated uninterrupted current.
• PR123/P-LSIG electronic trip unit.
• Four-pole configuration.
• Withdrawable moving-part design.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 100 kA ultimate short-circuit breaking capacity at 400–415 V AC.
• 85 kA service short-circuit breaking capacity at 400–415 V AC.
• Integrated ground-fault protection through the LSIG protection release.
• Four auxiliary contacts with open/closed position indication.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB E3H3200 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. The four-pole withdrawable construction also enables the breaker moving part to be disconnected from its corresponding fixed part, supporting inspection, maintenance and replacement in critical power distribution installations.

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.
• Switchboards requiring withdrawable air circuit breakers.
• Power distribution systems requiring selective LSIG protection.