1SDA056040R1 ABB E2S 2000 PR121/P-LI 2000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2S 2000 PR121/P-LI 1SDA056040R1 Air Circuit Breaker?

The ABB 1SDA056040R1 is a high-performance SACE Emax E2S 2000 air circuit breaker moving part designed for reliable switching and overcurrent protection in demanding low-voltage electrical distribution systems. This four-pole withdrawable circuit breaker moving part is equipped with the PR121/P-LI R2000 electronic overcurrent release, combining a high continuous-current rating with dependable electronic protection.

With a rated uninterrupted current of 2000 A and a rated operational voltage of up to 690 V AC, the E2S 2000 is suitable for main distribution switchboards, industrial installations, transformer protection and commercial power infrastructure. The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection for conductors, switchgear and connected equipment.

The E2S performance level provides high short-circuit interruption capability, including a rated ultimate short-circuit breaking capacity of 85 kA at 220 V AC and a rated short-time withstand current of 65 kA for 1 s. This version is supplied as a four-pole withdrawable moving part (W MP) fitted with four auxiliary contacts and open/closed circuit-breaker position indication.

Key Advantages

• Heavy-duty 2000 A air circuit breaker moving part for high-current low-voltage power distribution.
• Four-pole configuration suitable for systems requiring phase and neutral switching.
• High E2S S-performance short-circuit capability for demanding electrical installations.
• Advanced PR121/P-LI R2000 electronic overcurrent release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• Withdrawable moving-part construction supports convenient inspection, servicing and replacement.
• Part of the proven ABB SACE Emax E2S air circuit breaker platform.

Key Features

• ABB SACE Emax E2S 2000 series.
• 2000 A rated uninterrupted current.
• Four-pole configuration.
• Withdrawable moving-part execution.
• PR121/P-LI R2000 electronic trip unit.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 65 kA short-time withstand current for 1 s.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.

Electronic LI Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S provide switching, isolation and overcurrent protection for high-current low-voltage distribution circuits. The E2S 2000 combines substantial continuous-current capability with high short-circuit performance, making it suitable for main switchboards, industrial distribution systems and other installations where dependable fault interruption is essential.

The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the four-pole withdrawable SACE Emax construction, the 1SDA056040R1 provides dependable electronic protection while allowing the circuit breaker moving part to be withdrawn from its compatible fixed portion for inspection, maintenance or replacement.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Transformer protection and distribution.
• Generator and utility distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Four-pole installations requiring withdrawable circuit-breaker construction.