1SDA057221R1 ABB E1B-A 800 PR122/P-LI 800 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E1B-A 800 PR122/P-LI 800 A Air Circuit Breaker?

The ABB E1B-A 800 PR122/P-LI, order code 1SDA057221R1, is a SACE Emax E1B-A air circuit breaker moving part designed for protection, switching and isolation in low-voltage power distribution systems. Rated at 800 A, this three-pole withdrawable unit combines the compact E1 frame with ABB's PR122/P-LI R800 electronic overcurrent release.

This UL configuration forms part of the ABB SACE Emax family and is intended for industrial switchboards, distribution panels and infrastructure applications requiring dependable electronic overcurrent protection. The PR122/P-LI release provides long-time overload and instantaneous short-circuit protection, while the breaker configuration incorporates an instantaneous setting identified as Im 12000 A.

The three-pole withdrawable moving-part construction supports efficient inspection, maintenance and replacement within a compatible SACE Emax fixed part. The breaker is also fitted with four auxiliary contacts and open/closed position indication, supporting remote status signalling and integration into switchboard control systems.

Key Advantages

• 800 A rated current for substantial low-voltage distribution circuits.
• PR122/P-LI R800 electronic overcurrent release for dependable circuit protection.
• LI protection functions provide long-time overload and instantaneous short-circuit protection.
• Three-pole withdrawable moving-part configuration for serviceable switchgear installations.
• Withdrawable construction facilitates inspection, maintenance and breaker replacement.
• Four auxiliary contacts support breaker status signalling and control integration.
• Open/closed position indication provides clear breaker operating-state feedback.
• UL configuration for applications requiring the corresponding ABB E1B-A UL breaker variant.

Key Features

• ABB SACE Emax E1B-A series.
• 800 A rated current.
• Three-pole configuration.
• Withdrawable moving part execution.
• PR122/P-LI R800 electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• Im 12000 A configuration.
• Four auxiliary contacts for status signalling.
• Open/closed breaker position indication.
• UL breaker configuration.
• Designed for use with a compatible SACE Emax withdrawable fixed part.

Electronic Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax E1 provide switching, isolation and fault protection for low-voltage electrical distribution systems. The E1 frame offers a compact solution for incoming and feeder circuits, while the 800 A rating of this configuration makes it suitable for substantial industrial and commercial distribution loads.

The PR122/P-LI electronic release combines long-time overload and instantaneous short-circuit protection to protect conductors, busbars and connected equipment against damaging overcurrent conditions. Its withdrawable construction additionally supports maintenance flexibility by allowing the breaker moving part to be removed from its compatible fixed assembly.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial incoming and feeder circuits.
• Manufacturing and process plant electrical systems.
• Commercial building power distribution.
• Transformer secondary distribution circuits.
• Motor control and distribution switchgear assemblies.
• Infrastructure and critical low-voltage power systems.