1SDA059333R1 ABB E2S1000 PR123/P-LSIG 1000A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2S1000 PR123/P-LSIG 1000A 3-Pole Fixed Air Circuit Breaker?

The ABB E2S1000 PR123/P-LSIG, order code 1SDA059333R1, is a high-performance 1000 A three-pole fixed air circuit breaker designed for switching and protecting demanding low-voltage power distribution systems. As part of the proven ABB SACE Emax E2S series, it combines robust high-current switching capability with advanced electronic protection for industrial, commercial and infrastructure switchgear.

This Emax circuit breaker is equipped with the PR123/P-LSIG R1000 electronic trip unit, providing long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. The PR123/P platform provides sophisticated electronic protection and monitoring capabilities, making this breaker well suited to distribution systems where accurate fault protection and selective coordination are important.

With a rated operational current of 1000 A, rated operational voltage of 690 V AC and high E2S short-circuit performance, the breaker is suitable for demanding distribution applications. This model uses a three-pole fixed construction with rear horizontal terminals and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication for integration into compatible SACE Emax switchboards.

Key Advantages

• Heavy-duty 1000 A air circuit breaker for low-voltage power distribution.
• Three-pole configuration for three-phase electrical systems.
• PR123/P-LSIG R1000 electronic trip unit provides comprehensive LSIG protection.
• Dedicated earth-fault protection (G) supplements overload and short-circuit protection.
• 85 kA service short-circuit breaking capacity at 400/415 V AC.
• Fixed construction with rear horizontal terminals for permanent switchboard installation.
• Four auxiliary contacts with open/closed circuit-breaker position indication.
• High mechanical and electrical endurance for demanding distribution applications.
• Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E2S air circuit breaker.
• 1000 A rated current.
• Three-pole construction.
• PR123/P-LSIG R1000 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Earth-fault protection (G).
• Fixed version with rear horizontal terminals (F HR).
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 44.8 W power loss.
• Four auxiliary contacts and breaker open/closed indication.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S are designed to switch and protect high-current low-voltage distribution circuits. The electronic trip unit monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, transformers, switchgear and connected equipment against damaging overload, short-circuit and earth-fault conditions.

The PR123/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection for comprehensive distribution-system protection. Combined with the E2S high short-circuit performance level, fixed construction and rear horizontal terminals, the E2S1000 is particularly well suited to main and feeder protection where high fault-current capability and advanced electronic protection are required.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Manufacturing and process plant switchgear.
• Transformer and feeder protection.
• Systems requiring integrated earth-fault protection.
• Power distribution panels and switchgear assemblies.
• Infrastructure and utility installations.
• Protection of busbars and high-current distribution circuits.