1SDA059276R1 ABB E2N1000 PR122/P-LSI 1000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059276R1 E2N1000 Air Circuit Breaker?

The ABB 1SDA059276R1 is a high-performance SACE Emax E2N 1000 A four-pole air circuit breaker moving part designed for reliable protection and switching in low-voltage electrical distribution systems. Part of the ABB New Emax product family, it combines a 1000 A current rating with the advanced PR122/P-LSI electronic overcurrent release for demanding industrial and commercial power applications.

The E2N1000 is equipped with an ABB PR122/P-LSI electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection. These LSI protection functions enable the circuit breaker to respond effectively to overload and short-circuit conditions, helping protect cables, busbars, switchgear and connected electrical equipment.

This model features a four-pole withdrawable moving-part (W MP) configuration for use with the corresponding SACE Emax fixed part. The breaker is fitted with four auxiliary contacts and open/closed position indication, supporting integration with switchboard control and status-monitoring systems while the withdrawable design facilitates inspection, maintenance and replacement.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1000 A rated current for demanding industrial and commercial installations.
• Four-pole configuration for switching and protection of four conductors.
• PR122/P-LSI electronic release provides long-time, short-time and instantaneous protection.
• Withdrawable moving-part design supports efficient inspection, servicing and replacement.
• Four auxiliary contacts support circuit breaker status signalling and control.
• Open/closed position indication provides clear operating status information.

Key Features

• ABB SACE Emax E2N series.
• 1000 A rated current.
• Four-pole air circuit breaker.
• PR122/P-LSI electronic overcurrent release.
• LSI protection functions: long-time, short-time and instantaneous.
• Withdrawable (W) moving part (MP) configuration.
• Four auxiliary contacts for electrical status signalling.
• Integrated circuit breaker open/closed position indication.
• Designed for low-voltage industrial and commercial power distribution systems.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N protect low-voltage electrical distribution systems against potentially damaging overcurrent conditions. The electronic trip unit monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, switchgear and connected equipment.

The PR122/P-LSI release combines long-time overload, short-time short-circuit and instantaneous short-circuit protection. Together with the E2N breaker platform and withdrawable four-pole construction, this makes the 1SDA059276R1 suitable for critical distribution systems requiring flexible electronic protection, high short-circuit performance and maintainable switchgear.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming and distribution circuits.
• Three-phase and four-wire electrical distribution systems.
• Manufacturing and process facilities.
• Commercial building power distribution.
• Electrical distribution panels and assemblies.
• Infrastructure and utility installations.
• Systems requiring withdrawable high-current air circuit breakers.