1SDA058293R1 ABB E2S 800 PR122/P-LI 800 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2S 800 PR122/P-LI Air Circuit Breaker?

The ABB E2S 800 PR122/P-LI, order code 1SDA058293R1, is a SACE Emax air circuit breaker designed for reliable switching and protection in low-voltage power-distribution systems. This model combines an 800 A rated current, four-pole configuration and PR122/P-LI R800 electronic overcurrent release in a fixed breaker arrangement.

The 1SDA058293R1 is supplied as a fixed (F) E2S circuit breaker with horizontal rear (HR) terminals, making it suitable for permanent installation within distribution switchboards and connection to rear-mounted busbar systems. ABB equips the breaker with four auxiliary contacts and open/closed circuit-breaker position indication for integration with control and signalling circuits.

The E2S performance level provides strong fault-current capability, including an 85 kA ultimate and service short-circuit breaking capacity up to 440 V AC and 65 kA at 500–690 V AC. Its short-time withstand capability reaches 65 kA for 1 s, supporting selective protection in demanding industrial and commercial distribution systems.

Key Advantages

• 800 A rated current for substantial low-voltage distribution circuits.
• Four-pole switching allows simultaneous switching of three phases and neutral.
• PR122/P-LI R800 electronic release provides long-time and instantaneous overcurrent protection.
• 85 kA breaking capacity at 415 V AC for high-fault-level installations.
• 65 kA short-time withstand current for 1 s supports selective protection strategies.
• Fixed construction with horizontal rear terminals suits permanent switchboard installations.
• Includes four auxiliary contacts for signalling and control integration.
• Open/closed position indication provides clear circuit-breaker operating status.

Key Features

• ABB SACE Emax E2S air circuit breaker.
• 800 A rated current.
• Four-pole configuration.
• Fixed (F) execution.
• Horizontal rear (HR) terminals.
• PR122/P-LI R800 electronic overcurrent release.
• Long-time (L) and instantaneous (I) protection.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 85 kA Icu/Ics at 415 V AC.
• 65 kA Icu/Ics at 690 V AC.
• 65 kA short-time withstand current for 1 s.
• Four auxiliary contacts and open/closed position indication.
• Designed for IEC applications.

Reliable Electronic Protection for Low-Voltage Distribution

The ABB PR122/P-LI electronic release provides long-time overload protection and instantaneous short-circuit protection. Long-time protection responds to sustained overcurrent conditions, while the instantaneous function provides rapid tripping when a severe short circuit exceeds the configured protection threshold.

Combined with the E2S breaker's 85 kA fault-breaking capability at 415 V AC, four-pole construction and substantial short-time withstand performance, the 1SDA058293R1 provides a robust solution for main distribution and feeder circuits. Its fixed horizontal-rear configuration is particularly suitable for permanent switchboard installations where dependable high-current protection and rear busbar connections are required.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial incoming and feeder circuits.
• Manufacturing and process plants.
• Commercial building power distribution.
• Infrastructure electrical systems.
• Transformer secondary protection.
• Four-pole distribution systems requiring neutral switching.
• Installations requiring high fault-current interruption and electronic LI protection.