1SDA059258R1 ABB E2N1000 PR121/P-LI 1000A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2N1000 PR121/P-LI 1000A 3-Pole Withdrawable Air Circuit Breaker?

The ABB E2N1000 PR121/P-LI, order code 1SDA059258R1, is a robust 1000 A three-pole withdrawable air circuit breaker moving part designed for switching and protecting high-current low-voltage power distribution systems. As part of the proven ABB SACE Emax E2N series, it combines dependable switching performance with electronic overcurrent protection for industrial, commercial and infrastructure switchgear.

This Emax circuit breaker is equipped with the PR121/P-LI electronic trip unit, providing long-time overload (L) and instantaneous short-circuit (I) protection. The R1000 release is matched to the breaker’s 1000 A rated current, helping protect cables, busbars, switchgear and connected equipment against sustained overloads and severe short-circuit faults.

With a rated operational voltage of up to 690 V AC, the E2N1000 provides strong performance across demanding low-voltage distribution systems. This model is supplied as the moving part of a withdrawable circuit breaker and includes four auxiliary contacts for open/closed breaker position indication, supporting service-friendly integration into compatible SACE Emax switchgear.

Key Advantages

• Heavy-duty 1000 A air circuit breaker moving part for low-voltage distribution.
• Three-pole configuration for three-phase power systems.
• PR121/P-LI electronic trip unit provides overload and instantaneous short-circuit protection.
• Withdrawable construction supports efficient inspection, servicing and replacement.
• 65 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• 55 kA short-time withstand current for 1 s.
• Four auxiliary contacts provide open/closed 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 current.
• Three-pole construction.
• PR121/P-LI 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 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 monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected equipment against damaging overload and short-circuit conditions.

The PR121/P-LI release provides essential long-time and instantaneous protection, while the E2N performance level delivers substantial short-circuit interruption capability. Combined with its withdrawable construction, the E2N1000 is well suited to installations where dependable protection, high fault-current capability and straightforward switchgear 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.