1SDA056617R1 ABB E3V1600 PR121/P-LSI 1600A 4P Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E3V1600 PR121/P-LSI 1600A 4P W MP Air Circuit Breaker?

The ABB E3V1600 PR121/P-LSI, order code 1SDA056617R1, is a high-performance SACE Emax air circuit breaker moving part designed for switching and protection in demanding low-voltage power distribution systems. This E3 V configuration combines a 1600 A rated current, four-pole construction and a PR121/P-LSI R1600 electronic overcurrent release.

Supplied as a withdrawable moving part (W MP), the E3V1600 is designed for use with a compatible E3 withdrawable fixed part. The draw-out configuration supports convenient isolation, inspection, servicing and replacement, making it well suited to critical switchboards where maintainability and operational flexibility are important.

The PR121/P-LSI electronic release provides long-time, short-time and instantaneous overcurrent 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.
• 1600 A rated current for substantial low-voltage distribution loads.
• Four-pole configuration for four-pole switching and protection.
• PR121/P-LSI R1600 electronic release provides long-time, short-time and instantaneous protection.
• Withdrawable moving-part design supports convenient isolation, maintenance and replacement.
• High V-class breaking performance with Icu up to 130 kA.

Key Features

• ABB SACE Emax E3 V air circuit breaker platform.
• 1600 A rated current.
• Four-pole construction.
• PR121/P-LSI R1600 electronic overcurrent release.
• Long-time, short-time and instantaneous LSI 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.

Reliable High-Current Protection for Low-Voltage Distribution

Air circuit breakers such as the ABB SACE Emax E3V1600 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 may be present.

The PR121/P-LSI electronic release provides long-time protection against sustained overloads, short-time protection for coordinated short-circuit response and instantaneous protection against severe fault currents. Combined with the withdrawable E3 V platform, the 1SDA056617R1 provides high fault-interruption performance together with practical serviceability for critical switchgear installations.

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.