1SDA059336R1 ABB E2S1000 PR123/P-LSIG 1000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059336R1 E2S1000 Air Circuit Breaker?

The ABB 1SDA059336R1 is a high-performance SACE Emax E2S 1000 A four-pole air circuit breaker moving part designed for comprehensive protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB New Emax product family, it combines a 1000 A rated current with the advanced PR123/P-LSIG electronic overcurrent release for industrial, commercial and infrastructure power applications.

The E2S1000 is equipped with an ABB PR123/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth-fault protection functions. This LSIG protection package helps protect cables, busbars, switchgear and connected equipment against overload, short-circuit and earth-fault conditions while supporting selective and coordinated protection within complex electrical distribution networks.

This model features a four-pole withdrawable moving-part (W MP) configuration for use with the corresponding SACE Emax fixed part. It is fitted with four auxiliary contacts and open/closed position indication, while the withdrawable construction supports efficient inspection, servicing and replacement in critical switchboard installations.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 1000 A rated current for industrial, commercial and infrastructure installations.
• Four-pole configuration for switching and protection of four conductors.
• PR123/P-LSIG electronic release provides comprehensive overcurrent and earth-fault protection.
• 85 kA rated service and ultimate short-circuit breaking capacity at 220–440 V AC.
• 65 kA breaking capacity at 500–690 V AC.
• Withdrawable moving-part design supports efficient maintenance, inspection and replacement.
• Four auxiliary contacts and open/closed position indication support switchboard control and signalling.

Key Features

• ABB SACE Emax E2S series.
• 1000 A rated uninterrupted current.
• Four-pole air circuit breaker.
• PR123/P-LSIG electronic overcurrent release.
• LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 85 kA breaking capacity at 220–440 V AC.
• 65 kA breaking capacity at 500–690 V AC.
• 65 kA short-time withstand current for 1 s.
• Withdrawable (W) execution supplied as the moving part.
• Four auxiliary contacts with open/closed position indication.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S protect low-voltage electrical distribution systems against potentially damaging 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 safeguard cables, busbars, switchgear and connected electrical equipment.

The PR123/P-LSIG release combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection with the high short-circuit performance of the E2S platform. Together with its four-pole withdrawable construction, the 1SDA059336R1 is particularly suitable for critical power distribution systems requiring comprehensive electronic protection, high fault-current capability 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 with earth-fault protection.