1SDA058298R1 ABB SACE Emax E2S800 PR121/P-LI 800 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA058298R1 Emax E2S800 Air Circuit Breaker?

The ABB 1SDA058298R1 is a high-performance SACE Emax E2S800 withdrawable air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Identified by ABB as E2S800 PR121/P-LI In=800A 3p W MP, this configuration combines an 800 A three-pole E2S breaker moving part with a PR121/P-LI R800 electronic overcurrent release.

The breaker provides LI protection, combining long-time overload protection with instantaneous short-circuit protection. The PR121/P electronic trip unit monitors current and provides dependable protection against sustained overloads and severe short-circuit faults, making this Emax configuration suitable for industrial switchboards and critical power distribution applications.

With a rated uninterrupted current of 800 A and an ultimate short-circuit breaking capacity of 85 kA at 400 V AC, the E2S800 provides substantial fault interruption performance. This version is a three-pole withdrawable moving part (WMP) and is supplied with four auxiliary contacts for open/closed circuit-breaker position signalling.

Key Advantages

• High-performance ABB SACE Emax E2S800 air circuit breaker moving part.
• 800 A rated uninterrupted current for high-current distribution applications.
• PR121/P-LI R800 electronic overcurrent release for dependable circuit protection.
• Provides long-time overload and instantaneous short-circuit protection.
• 85 kA ultimate short-circuit breaking capacity at 400 V AC.
• Three-pole withdrawable moving-part construction for draw-out switchgear systems.
• Supplied with four auxiliary contacts for open/closed position signalling.
• Designed for ABB SACE Emax low-voltage switchboards and power distribution systems.

Key Features

• ABB SACE Emax E2S800 air circuit breaker.
• 800 A rated uninterrupted current.
• Three-pole configuration.
• Withdrawable moving part (WMP).
• PR121/P-LI R800 electronic overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• Instantaneous short-circuit protection adjustment range of 1200–12000 A.
• 85 kA ultimate short-circuit breaking capacity at 400 V AC.
• IP2X protection rating.
• Four auxiliary contacts configured for open/closed position signalling.
• Motor operation is optional.

Advanced Electronic Protection for Withdrawable Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S800 provide switching and protection for high-current low-voltage distribution circuits. The PR121/P electronic release monitors current flowing through the breaker and initiates interruption when operating conditions exceed the configured protection thresholds.

The PR121/P-LI protection package combines long-time overload protection with instantaneous short-circuit protection. As a withdrawable moving part, the 1SDA058298R1 is intended for use with the corresponding withdrawable fixed part, providing a draw-out circuit-breaker arrangement that supports switchboard operation, inspection and maintenance.

Typical Applications

• Industrial low-voltage power distribution systems.
• Withdrawable electrical switchboards and switchgear.
• Main and sub-main distribution assemblies.
• Manufacturing and process industry power distribution.
• Protection of high-current electrical feeders.
• Transformer secondary distribution systems.
• Motor control centres and industrial switchgear assemblies.
• Electrical installations requiring withdrawable air circuit breakers with LI protection.