1SDA056650R1 ABB E3V2000 PR121/P-LSIG 2000A 4P Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E3V2000 PR121/P-LSIG 2000A 4P W MP Air Circuit Breaker?

The ABB E3V2000 PR121/P-LSIG, order code 1SDA056650R1, is a high-performance SACE Emax air circuit breaker moving part designed for switching and comprehensive protection in demanding low-voltage power distribution systems. This E3 V configuration combines a 2000 A rated current, four-pole construction and a PR121/P-LSIG R2000 electronic overcurrent release.

Supplied as a withdrawable moving part (W MP), the E3V2000 is designed for use with a compatible E3 withdrawable fixed part. The draw-out arrangement supports convenient isolation, inspection, servicing and replacement, making it particularly suitable for critical switchboards where maintainability and operational flexibility are important.

The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection. The breaker is rated for operation up to 690 V AC, with a rated insulation voltage of 1000 V and impulse withstand voltage of 12 kV, while the E3 V performance level provides an ultimate short-circuit breaking capacity of up to 130 kA.

Key Advantages

• High-performance ABB SACE Emax E3 V air circuit breaker moving part.
• 2000 A rated current for high-current low-voltage distribution systems.
• Four-pole configuration for four-pole switching and circuit protection.
• PR121/P-LSIG R2000 electronic release provides comprehensive LSIG protection.
• Withdrawable moving-part design supports convenient isolation, servicing and replacement.
• High V-class fault performance with Icu up to 130 kA.

Key Features

• ABB SACE Emax E3 V air circuit breaker platform.
• 2000 A rated current.
• Four-pole construction.
• PR121/P-LSIG R2000 electronic overcurrent release.
• Long-time, short-time, instantaneous and ground-fault LSIG protection functions.
• Withdrawable version (W).
• Moving part (MP) for compatible E3 withdrawable switchgear.
• Four auxiliary contacts with open/closed position indication.
• Rated operational voltage up to 690 V AC.
• High V short-circuit performance level.

Comprehensive High-Current Protection for Low-Voltage Distribution

Air circuit breakers such as the ABB SACE Emax E3V2000 provide switching and overcurrent protection for main incomers, feeders and other high-current circuits in low-voltage distribution systems. The E3 V performance class offers substantial short-circuit interruption capability for installations where high prospective fault currents require robust circuit protection.

The PR121/P-LSIG electronic release combines long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection. Combined with the withdrawable E3 V platform, the 1SDA056650R1 provides comprehensive circuit protection together with practical serviceability for demanding industrial, commercial and infrastructure switchgear.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Main incomer circuit protection.
• High-current feeder protection.
• Manufacturing and process facilities.
• Withdrawable switchgear requiring high short-circuit interruption capability.