1SDA060761R1 ABB E3S-A 800 PR121/P-LSI 800 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA060761R1 E3S-A 800 Withdrawable Air Circuit Breaker?

The ABB 1SDA060761R1 is a high-performance SACE Emax E3S-A 800 withdrawable air circuit breaker moving part designed for reliable switching and protection in demanding low-voltage power distribution systems. Identified by ABB as E3S-A 800 PR121/P-LSI In=800A 3p W, this three-pole breaker combines an 800 A rated current with the ABB PR121/P electronic overcurrent release.

As part of the established ABB SACE Emax range, the E3S-A is engineered for industrial switchboards where dependable overload and short-circuit protection are essential. Its PR121/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection functions, supporting coordinated protection of electrical distribution circuits and connected equipment.

This version features a withdrawable moving-part construction, allowing the circuit breaker to be disconnected and removed from its compatible fixed part for inspection, servicing or replacement. The three-pole E3S-A configuration uses an R800 overcurrent release with an instantaneous release reference of 12000 A and is fitted with four auxiliary contacts and open/closed position indication.

Key Advantages

• Genuine ABB SACE Emax E3S-A 800 withdrawable circuit breaker moving part.
• 800 A rated current for industrial low-voltage power distribution.
• PR121/P electronic trip unit for dependable electronic circuit protection.
• LSI protection functions covering long-time, short-time and instantaneous overcurrent conditions.
• Withdrawable three-pole construction supports efficient inspection, servicing and replacement.
• Fitted with four auxiliary contacts and open/closed position indication.

Key Features

• ABB SACE Emax E3S-A series.
• 800 A rated current (In).
• Three-pole configuration.
• Withdrawable moving-part version.
• PR121/P-LSI electronic overcurrent release.
• Long-time (L) overload protection.
• Short-time (S) selective short-circuit protection.
• Instantaneous (I) short-circuit protection.
• R800 overcurrent release.
• 12000 A instantaneous release reference.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Designed for integration with a compatible SACE Emax E3 fixed part.

Advanced Withdrawable Protection for Low-Voltage Distribution

Withdrawable air circuit breakers provide switching and protection while allowing the breaker moving part to be separated from its stationary fixed part. This architecture simplifies inspection, servicing and replacement and is particularly useful in industrial switchboards where maintainability and minimising disruption to the main switchgear assembly are important.

The PR121/P-LSI electronic trip unit gives the ABB 1SDA060761R1 long-time, short-time and instantaneous protection functions for coordinated overload and short-circuit protection. Combined with its 800 A three-pole withdrawable construction and R800 overcurrent release, the breaker provides a robust solution for professional industrial, commercial and infrastructure low-voltage distribution systems.

Typical Applications

• Industrial low-voltage switchboards.
• Main and sub-main electrical distribution systems.
• Withdrawable air circuit-breaker installations.
• Manufacturing and process plants.
• Commercial building power distribution.
• Infrastructure and engineered low-voltage switchgear.