1SDA059266R1 ABB E2N1000 PR121/P-LSIG 1000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059266R1 E2N1000 Air Circuit Breaker?

The ABB 1SDA059266R1 is a high-performance SACE Emax E2N 1000 A three-pole air circuit breaker moving part designed for comprehensive protection and switching in low-voltage electrical distribution systems. Part of the advanced ABB New Emax product family, it combines a 1000 A current rating with the PR121/P-LSIG electronic overcurrent release for demanding industrial and commercial power applications.

The E2N1000 is equipped with an ABB PR121/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth-fault protection functions. This LSIG protection package enables the circuit breaker to respond to overload, short-circuit and earth-fault conditions, helping protect cables, busbars, switchgear and connected electrical equipment.

This model features a three-pole withdrawable moving-part (W MP) configuration with a rated operational voltage of up to 690 V AC. It provides a rated service and ultimate short-circuit breaking capacity of 65 kA at 400 V AC, while four auxiliary contacts and open/closed position indication support integration with switchboard control and monitoring systems.

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.
• Three-pole configuration designed for three-phase electrical distribution systems.
• PR121/P-LSIG electronic release provides comprehensive overcurrent and earth-fault protection.
• 65 kA rated service and ultimate short-circuit breaking capacity at 400 V AC.
• Withdrawable moving-part design supports convenient inspection, maintenance and replacement.
• Four auxiliary contacts support circuit breaker control and status signalling.
• Open/closed position indication provides clear operating status information.

Key Features

• ABB SACE Emax E2N series.
• 1000 A rated uninterrupted current.
• Three-pole air circuit breaker.
• PR121/P-LSIG electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
• 690 V AC rated operational voltage.
• 65 kA breaking capacity at 400 V AC.
• 55 kA breaking capacity at 690 V AC.
• 55 kA short-time withstand current for 1 s.
• Withdrawable (W) moving part (MP) configuration.
• Four auxiliary contacts and open/closed position indication.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N protect low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions. The electronic trip unit monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping protect electrical infrastructure and maintain dependable system operation.

The PR121/P-LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Together with the E2N breaker’s high short-circuit performance and withdrawable construction, this makes the 1SDA059266R1 suitable for critical power distribution systems requiring comprehensive protection and maintainable switchgear.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming and distribution circuits.
• Three-phase 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 circuit breakers.