1SDA059262R1 ABB E2N 1000A 3-Pole PR121/P-LSI Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059262R1 E2N 1000 Air Circuit Breaker?

The ABB 1SDA059262R1 is a SACE Emax E2N 1000 air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. Identified by the ABB product designation E2N10-PR121/LS1, this three-pole withdrawable circuit breaker has a rated current of 1000 A and is equipped with an ABB PR121/P-LSI R1000 electronic overcurrent release.

As part of the ABB SACE Emax / New Emax family, the 1SDA059262R1 combines the E2 frame with the N performance level and configurable electronic circuit protection. The PR121/P-LSI release provides L, S and I protection functions, covering long-time overload, short-time delayed short-circuit and instantaneous short-circuit conditions in industrial electrical distribution systems.

The withdrawable moving-part construction allows the circuit breaker to interface with a compatible ABB E2 fixed part, supporting maintainable switchgear installations. With a 1000 A current rating, three-pole configuration and an ultimate short-circuit breaking capacity of 65 kA at 400 V AC, 50 Hz, the E2N 1000 is well suited to main incomers, high-current feeders and critical industrial distribution circuits.

Key Advantages

• Genuine ABB SACE Emax E2N 1000 air circuit breaker moving part.
• 1000 A rated uninterrupted current for demanding low-voltage power distribution.
• PR121/P-LSI R1000 electronic overcurrent release for configurable circuit protection.
• L, S and I protection functions cover overload and short-circuit conditions.
• 65 kA ultimate short-circuit breaking capacity at 400 V AC, 50 Hz.
• Withdrawable construction supports efficient inspection, servicing and switchgear maintenance.

Key Features

• ABB SACE Emax / New Emax E2N platform.
• 1000 A rated uninterrupted current.
• 3-pole configuration.
• PR121/P-LSI R1000 electronic trip unit.
• Long-time (L) overload protection.
• Short-time (S) delayed short-circuit protection.
• Instantaneous (I) short-circuit protection.
• 65 kA Icu at 400 V AC, 50 Hz.
• 400–1000 A overload release adjustment range.
• 1000–10000 A short-time delayed short-circuit adjustment range.
• 1500–15000 A instantaneous short-circuit adjustment range.
• Withdrawable moving part (W MP) construction.
• Fitted with 4 auxiliary contacts and open/closed position indication.

High-Performance Protection for Low-Voltage Power Distribution

Air circuit breakers provide switching, isolation and overcurrent protection for high-current low-voltage distribution systems. The ABB SACE Emax E2N platform combines substantial short-circuit performance with electronic protection, making it suitable for main distribution and feeder applications where dependable protection of cables, busbars and downstream electrical equipment is required.

The PR121/P-LSI release fitted to the 1SDA059262R1 provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. Combined with its 1000 A current rating, 65 kA ultimate breaking capacity at 400 V AC and withdrawable construction, the breaker provides a robust and maintainable protection solution for demanding industrial switchgear.

Typical Applications

• Industrial low-voltage power distribution systems.
• Main incoming circuit-breaker applications.
• High-current feeder and busbar protection.
• Three-phase industrial switchboards.
• Withdrawable switchgear and distribution assemblies.
• Manufacturing and process industry installations.
• Commercial and infrastructure power distribution systems.