1SDA056075R1 ABB E2L 1250 PR122/P-LI 1250 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2L 1250 PR122/P-LI 1SDA056075R1 Air Circuit Breaker?

The ABB 1SDA056075R1 is a high-performance SACE Emax E2L 1250 air circuit breaker moving part designed for reliable switching and electronic overcurrent protection in demanding low-voltage electrical distribution systems. This four-pole withdrawable circuit breaker moving part is equipped with the PR122/P-LI R1250 electronic overcurrent release and has a rated uninterrupted current of 1250 A.

The E2L performance level is engineered for installations with high prospective short-circuit currents. The breaker is rated for operation up to 690 V AC and provides an ultimate short-circuit breaking capacity of 130 kA at 220–415 V AC, 110 kA at 440 V AC and 85 kA at 500–690 V AC. The PR122/P-LI release provides long-time overload and instantaneous short-circuit protection.

This version is supplied as a four-pole withdrawable moving part (W MP) for use with a compatible SACE Emax fixed part. It incorporates four auxiliary contacts and open/closed circuit-breaker position indication, combining high fault-clearing performance with a withdrawable design that supports inspection, servicing and replacement within compatible switchgear.

Key Advantages

• High-performance 1250 A air circuit breaker moving part for demanding low-voltage distribution.
• Four-pole configuration suitable for systems requiring phase and neutral switching.
• Exceptional 130 kA Icu at 220–415 V AC.
• Advanced PR122/P-LI R1250 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 high-breaking-capacity ABB SACE Emax E2L air circuit breaker range.

Key Features

• ABB SACE Emax E2L 1250 series.
• 1250 A rated uninterrupted current.
• Four-pole configuration.
• Withdrawable moving-part execution.
• PR122/P-LI R1250 electronic trip unit.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• 130 kA Icu at 220–415 V AC.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.

High-Breaking-Capacity LI Protection for Power Distribution

ABB SACE Emax E2L air circuit breakers are designed for low-voltage installations where high prospective short-circuit currents require substantial interruption capability. The E2L 1250 combines a 1250 A continuous-current rating with up to 130 kA ultimate breaking capacity, making it suitable for demanding main distribution, industrial and infrastructure switchgear applications.

The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the four-pole withdrawable construction, the 1SDA056075R1 provides dependable electronic overcurrent 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 with high prospective fault currents.
• Transformer secondary protection and distribution.
• Generator and utility distribution systems.
• Manufacturing and process plant switchgear.
• Commercial and infrastructure electrical distribution.
• Four-pole installations requiring withdrawable construction and LI overcurrent protection.