1SDA059272R1 ABB E2N1000 PR122/P-LI 1000A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2N1000 PR122/P-LI 1000A 4-Pole Withdrawable Air Circuit Breaker?

The ABB E2N1000 PR122/P-LI, order code 1SDA059272R1, is a high-performance 1000 A four-pole withdrawable air circuit breaker moving part 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-LI R1000 electronic trip unit, providing long-time overload (L) and instantaneous short-circuit (I) protection. Its electronic release enables accurate circuit protection, while the E2N performance level provides substantial short-circuit interruption capability for installations with high prospective fault currents.

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 distribution applications. This model is supplied as the four-pole moving part of a withdrawable circuit breaker and includes four auxiliary contacts with open/closed position indication, supporting efficient maintenance and integration into compatible SACE Emax switchgear.

Key Advantages

• Heavy-duty 1000 A air circuit breaker moving part for low-voltage power distribution.
• Four-pole configuration for switching and protecting three-phase systems with neutral.
• PR122/P-LI R1000 electronic trip unit provides overload and instantaneous short-circuit protection.
• Withdrawable construction supports efficient inspection, servicing and breaker replacement.
• 65 kA ultimate and service short-circuit breaking capacity at 400/415 V AC.
• 55 kA short-time withstand current for 1 s.
• Four 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 moving part.
• 1000 A rated uninterrupted current.
• Four-pole construction.
• PR122/P-LI R1000 electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• Withdrawable version / moving part (W MP).
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA Icu and Ics at 400/415 V AC.
• Four auxiliary contacts with 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 monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping safeguard cables, busbars, switchgear and connected equipment against damaging overload and short-circuit conditions.

The PR122/P-LI release provides long-time and instantaneous protection, while the E2N performance level delivers substantial fault interruption capability. Combined with its four-pole withdrawable construction, the E2N1000 is particularly well suited to installations where dependable high-current protection, neutral switching and straightforward switchgear maintenance are required.

Typical Applications

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