1SDA059230R1 ABB E1N1000 PR122/P-LSI 1000A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E1N1000 PR122/P-LSI 1000A 3-Pole Withdrawable Air Circuit Breaker?

The ABB E1N1000 PR122/P-LSI, order code 1SDA059230R1, is a high-performance 1000 A three-pole withdrawable air circuit breaker designed for switching and protecting low-voltage power distribution systems. As part of the established ABB SACE Emax E1N series, it combines robust high-current switching performance with advanced electronic protection for industrial, infrastructure and commercial electrical installations.

This Emax circuit breaker is equipped with the PR122/P-LSI electronic trip unit, providing long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. The PR122/P platform provides flexible electronic protection and monitoring capabilities, helping engineers coordinate distribution networks and protect cables, busbars, switchgear and connected equipment against damaging electrical faults.

With a rated current of 1000 A and a rated operational voltage of up to 690 V AC, the E1N1000 is suitable for demanding low-voltage distribution applications. This three-pole version features a withdrawable construction, enabling the breaker moving part to be disconnected and removed from its compatible fixed part for inspection, maintenance or replacement without dismantling the main switchboard connections.

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 electronic trip unit provides comprehensive LSI overcurrent protection.
• Long-time, short-time and instantaneous protection supports effective circuit coordination.
• Withdrawable construction simplifies inspection, servicing and breaker replacement.
• Rated for operation at up to 690 V AC.
• E1N performance level provides high short-circuit interruption capability.
• Part of the proven ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E1N air circuit breaker.
• 1000 A rated current.
• Three-pole construction.
• PR122/P-LSI electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Withdrawable version for service-friendly switchgear installations.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E1N 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 overloads and short circuits.

The PR122/P-LSI release provides long-time, short-time and instantaneous protection functions for effective distribution-system coordination. Combined with the service-friendly withdrawable Emax construction, the E1N1000 is particularly well suited to switchboards where dependable protection, operational flexibility and straightforward maintenance are important.

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.