1SDA056522R1 ABB E3H3200PR121/P-LSIG 3200 A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E3H3200PR121/P-LSIG Air Circuit Breaker?

The ABB E3H3200PR121/P-LSIG is a high-performance four-pole withdrawable air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage electrical distribution systems. Part of the established ABB SACE Emax E3H series, this configuration combines a 3200 A rated uninterrupted current with the PR121/P-LSIG R3200 electronic overcurrent release.

The PR121/P-LSIG R3200 electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and ground-fault protection. These LSIG functions provide comprehensive protection for conductors, busbars, switchgear and connected equipment while supporting selective coordination in high-current distribution networks.

The ABB 1SDA056522R1 is specifically configured as the four-pole moving portion of a withdrawable E3H3200 circuit breaker. Rated for operation up to 690 V AC, it provides an ultimate short-circuit breaking capacity of 100 kA at 220–500 V AC and incorporates four auxiliary contacts with circuit-breaker open/closed position indication.

Key Advantages

• High-performance ABB SACE Emax E3H air circuit breaker moving part for demanding low-voltage distribution systems.
• 3200 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration for four-conductor switching and protection.
• PR121/P-LSIG R3200 electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection.
• 100 kA Icu at 220–500 V AC for installations with substantial prospective fault currents.
• Withdrawable moving-part construction supports inspection, servicing and replacement in draw-out switchgear.
• Four auxiliary contacts and open/closed indication support circuit-breaker monitoring and control.

Key Features

• ABB SACE Emax E3H series.
• 3200 A rated uninterrupted current.
• Four-pole circuit breaker configuration.
• PR121/P-LSIG R3200 electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and ground fault.
• 690 V AC rated operational voltage.
• 100 kA Icu at 220–500 V AC.
• 85 kA Icu at 660–690 V AC.
• Withdrawable moving part (W MP) configuration.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Comprehensive LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H provide protection, switching and isolation for major low-voltage distribution circuits. The E3H platform combines high short-circuit interruption capability with electronic protection, making it suitable for main incomers, bus couplers, high-current feeders and other critical circuits where substantial load and prospective fault currents may occur.

The PR121/P-LSIG R3200 release combines long-time protection against sustained overloads, short-time delayed protection for selective short-circuit clearing, instantaneous protection against severe faults and dedicated ground-fault protection. Its withdrawable construction allows the moving portion to interface with the appropriate E3 fixed part, supporting inspection, servicing and replacement within suitably configured draw-out switchgear assemblies.

Typical Applications

• Main low-voltage distribution switchboards.
• Withdrawable industrial switchgear assemblies.
• Main incomer and bus-coupler applications.
• High-current distribution feeders requiring ground-fault protection.
• Industrial and commercial power distribution systems.
• Manufacturing plants and process facilities.
• Generator and transformer distribution systems.