1SDA059273R1 ABB E2N1000 PR122/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2N1000 PR122/P-LSI 1000A 3-Pole Fixed Air Circuit Breaker?

The ABB E2N1000 PR122/P-LSI, order code 1SDA059273R1, 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 E2N series, it combines robust high-current switching capability with advanced electronic overcurrent protection for industrial, commercial and infrastructure switchgear.

This Emax circuit breaker is equipped with the PR122/P-LSI R1000 electronic trip unit, providing long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. Its adjustable electronic protection functions support effective circuit coordination while helping safeguard cables, busbars, transformers, switchgear and connected equipment against overloads and short-circuit faults.

With a rated uninterrupted current of 1000 A and a rated operational voltage of up to 690 V AC, the E2N1000 is suitable for demanding low-voltage distribution applications. This model features a three-pole fixed construction with rear horizontal terminals and auxiliary contacts for open/closed breaker position indication, providing straightforward integration into compatible electrical switchboards.

Key Advantages

• Heavy-duty 1000 A air circuit breaker for low-voltage power distribution.
• Three-pole configuration designed for three-phase electrical systems.
• PR122/P-LSI R1000 electronic trip unit provides comprehensive LSI overcurrent protection.
• Adjustable long-time, short-time and instantaneous protection supports effective circuit coordination.
• 65 kA ultimate short-circuit breaking capacity at 400 V AC.
• Fixed construction with rear horizontal terminals for permanent switchboard installation.
• Auxiliary contacts provide open/closed circuit-breaker position indication.
• Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E2N air circuit breaker.
• 1000 A rated uninterrupted current.
• Three-pole construction.
• PR122/P-LSI R1000 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• 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.
• Auxiliary contacts for circuit-breaker open/closed indication.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N are designed to switch and protect high-current low-voltage distribution circuits. The electronic trip unit continuously monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, transformers, switchgear and connected equipment against damaging overload and short-circuit currents.

The PR122/P-LSI release provides long-time, short-time and instantaneous protection functions for effective distribution-system coordination. Combined with the fixed E2N construction, rear horizontal terminals and substantial short-circuit capability, the E2N1000 is well suited to main and feeder protection in demanding industrial and commercial switchboards.

Typical Applications

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