1SDA059227R1 ABB E1N 1000A 4-Pole Fixed Air Circuit Breaker PR122/P-LI

Why Choose the ABB 1SDA059227R1 E1N 1000 PR122/P-LI Air Circuit Breaker?

The ABB 1SDA059227R1 is a SACE Emax E1N 1000 air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Rated at 1000 A, this four-pole fixed circuit breaker is equipped with an ABB PR122/P-LI R1000 electronic overcurrent release for dependable overload and short-circuit protection.

As part of the ABB SACE Emax range, the E1N 1000 provides high-current switching and protection for industrial, commercial and infrastructure switchboards. The 1SDA059227R1 is a fixed four-pole version with rear horizontal terminals and includes four auxiliary change-over contacts together with circuit-breaker open/closed position indication.

With a rated uninterrupted current of 1000 A, rated voltage of 690 V and rated short-circuit breaking capacity of 50 kA at 400 V AC, the 1SDA059227R1 provides robust protection for substantial low-voltage distribution circuits where four-pole switching is required.

Key Advantages

• 1000 A rated current for substantial low-voltage distribution loads.
• PR122/P-LI electronic overcurrent release provides long-time and instantaneous protection functions.
• Four-pole configuration supports switching and protection across four conductors.
• Fixed installation provides a robust permanent switchboard arrangement.
• Rear horizontal terminals support practical integration into compatible switchgear assemblies.
• 50 kA short-circuit breaking capacity at 400 V AC for demanding distribution applications.
• Four auxiliary change-over contacts support breaker status signalling and control integration.
• Part of the established ABB SACE Emax E1N air circuit breaker platform.

Key Features

• ABB SACE Emax E1N 1000 air circuit breaker.
• 1000 A rated uninterrupted current (Iu).
• Four-pole construction.
• Fixed version.
• Rear horizontal terminals.
• Electronic PR122/P-LI R1000 overcurrent release.
• LI protection functions: long-time and instantaneous.
• 690 V rated voltage.
• 50 kA rated short-circuit breaking capacity at 400 V AC.
• 400–1000 A overload release setting range.
• 1500–15000 A instantaneous short-circuit adjustment range.
• Four auxiliary change-over contacts with open/closed position indication.

Advanced Electronic Protection for Four-Pole Distribution

Air circuit breakers protect and control high-current low-voltage distribution circuits by interrupting overload and short-circuit faults while also providing switching and isolation functionality. The four-pole construction of the ABB 1SDA059227R1 makes it suitable for installations requiring simultaneous switching across four conductors, while its fixed rear-horizontal-terminal arrangement provides a permanent connection within compatible switchboards.

The PR122/P-LI R1000 electronic overcurrent release provides long-time protection against sustained overload conditions and instantaneous protection against severe short-circuit faults. Combined with the 1000 A current rating and E1N short-circuit performance, the 1SDA059227R1 provides dependable protection for demanding industrial, commercial and infrastructure power distribution applications.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power distribution systems.
• Four-pole feeder protection and switching.
• Transformer and installation protection.
• Manufacturing and process plant switchgear.
• Commercial building electrical distribution.
• Infrastructure and utility distribution assemblies.
• Fixed low-voltage switchgear installations.