1SDA059188R1 ABB E1B 1000A 4-Pole Withdrawable Air Circuit Breaker with PR122/P-LSI

Why Choose the ABB 1SDA059188R1 E1B 1000 Air Circuit Breaker?

The ABB 1SDA059188R1 is a SACE Emax E1B 1000 air circuit breaker moving part designed for protection and switching in industrial low-voltage power-distribution systems. This four-pole withdrawable version is rated at 1000 A and is equipped with ABB's advanced PR122/P-LSI electronic overcurrent release.

The PR122/P-LSI provides long-time (L), short-time (S) and instantaneous (I) protection functions, providing adjustable electronic protection against overload and short-circuit conditions. The E1B platform provides a rated ultimate short-circuit breaking capacity of 42 kA at 400 V AC, supporting demanding main-distribution and feeder applications.

As a withdrawable moving part, the 1SDA059188R1 is designed to interface with the appropriate ABB SACE Emax E1 fixed part. The breaker is also fitted with four auxiliary contacts and open/closed position indication, providing useful status information for switchboard control, monitoring and signalling systems.

Key Advantages

• 1000 A E1B air circuit breaker for substantial industrial distribution duties.
• PR122/P-LSI electronic release provides long-time, short-time and instantaneous protection.
• 42 kA ultimate short-circuit breaking capacity at 400 V AC.
• Four-pole configuration for compatible four-conductor distribution systems.
• Withdrawable moving-part construction supports maintainable switchgear architectures.
• Adjustable overload and short-circuit protection settings for application flexibility.
• Includes four auxiliary contacts and open/closed position indication.
• Part of the established ABB SACE Emax air circuit-breaker family.

Key Features

• ABB SACE Emax E1B 1000 platform.
• 1000 A rated uninterrupted current.
• 4-pole construction.
• Withdrawable (W) moving part (MP).
• PR122/P-LSI electronic protection release.
• LSI protection: long-time, short-time and instantaneous.
• 42 kA Icu at 400 V AC.
• 400–1000 A overload-release adjustment range.
• 600–10000 A short-time delayed short-circuit adjustment range.
• 1500–15000 A instantaneous short-circuit adjustment range.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Optional motor operator capability.

Reliable LSI Protection for Industrial Power Distribution

The ABB PR122/P-LSI electronic release provides three coordinated protection functions for industrial distribution circuits. Long-time protection responds to sustained overloads, short-time protection provides adjustable response to high fault currents while supporting system selectivity, and instantaneous protection provides rapid tripping under severe short-circuit conditions.

Combined with the E1B breaker's 1000 A current rating, 42 kA ultimate breaking capacity at 400 V AC and withdrawable construction, the PR122/P-LSI makes the 1SDA059188R1 well suited to switchboards where adjustable electronic protection, dependable fault interruption and convenient equipment servicing are required.

Typical Applications

• Industrial low-voltage main distribution boards.
• Main incomer and feeder protection.
• Transformer and generator distribution systems.
• Four-pole power-distribution networks.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure power distribution.
• Withdrawable industrial switchboards.
• OEM power-distribution assemblies.