1SDA056601R1 ABB E3V1600 PR121/P-LSI 1600A 4P Fixed Rear Horizontal Air Circuit Breaker

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

The ABB E3V1600 PR121/P-LSI, order code 1SDA056601R1, is a high-performance SACE Emax air circuit breaker 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 fixed circuit breaker with rear horizontal terminals, the E3V1600 provides a robust installation arrangement for industrial and commercial switchboards. The PR121/P-LSI electronic release provides long-time, short-time and instantaneous protection functions, helping safeguard distribution circuits against sustained overloads and short-circuit faults while supporting selective protection strategies.

With a rated voltage of 690 V and a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, this E3 V breaker is engineered for installations with substantial prospective fault currents. It is supplied with four auxiliary change-over contacts and open/closed position indication for integration with switchboard signalling, control and monitoring systems.

Key Advantages

• High-performance ABB SACE Emax E3 V air circuit breaker.
• 1600 A rated current for high-current low-voltage distribution systems.
• Four-pole configuration for four-pole switching and protection applications.
• PR121/P-LSI R1600 electronic release provides long-time, short-time and instantaneous protection.
• Fixed configuration with rear horizontal terminals for robust switchboard integration.
• High V-class fault performance with 130 kA Icu at 400 V AC.

Key Features

• ABB SACE Emax E3 V air circuit breaker platform.
• 1600 A rated uninterrupted current.
• Four-pole construction.
• PR121/P-LSI R1600 electronic overcurrent release.
• Long-time, short-time and instantaneous LSI protection functions.
• Fixed version (F).
• Rear horizontal terminals.
• Four auxiliary change-over contacts.
• Open/closed position indication.
• Motor drive can be fitted as an optional accessory.

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 is designed for applications where high prospective fault currents require substantial short-circuit interruption capability.

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 fixed E3 V platform and rear horizontal terminal arrangement, the 1SDA056601R1 provides a robust solution for demanding industrial, commercial and infrastructure switchboards.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Main incomer circuit protection.
• High-current feeder protection.
• Manufacturing and process facilities.
• Commercial and infrastructure electrical distribution.