1SDA071358R1 ABB E1.2N 630 Ekip Hi-Touch LSI 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA071358R1 E1.2N 630 Ekip Hi-Touch LSI Air Circuit Breaker?

The ABB 1SDA071358R1 is a compact, high-performance SACE Emax 2 E1.2N air circuit breaker designed for advanced protection, measurement and switching in low-voltage power distribution systems. Rated at 630 A, this four-pole fixed breaker combines the E1.2N performance level with ABB's advanced Ekip Hi-Touch LSI electronic trip unit.

The Ekip Hi-Touch LSI release provides long-time overload (L), short-time selective short-circuit (S) and instantaneous short-circuit (I) protection. Integrated Ekip Measuring Pro and Network Analyzer functionality extends the breaker beyond circuit protection by providing advanced electrical measurement and power-quality monitoring capabilities for modern distribution systems.

The 1SDA071358R1 is supplied in a fixed four-pole configuration with front terminals. With a rated operational voltage of up to 690 V AC, an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and a rated short-time withstand current of 50 kA for 1 s, it provides dependable protection for industrial, commercial and critical infrastructure power distribution installations.

Key Advantages

• Compact 630 A SACE Emax 2 air circuit breaker for low-voltage distribution.
• E1.2N performance level provides robust short-circuit capability in a compact frame.
• Advanced Ekip Hi-Touch LSI electronic protection release.
• Long-time, short-time and instantaneous protection functions support selective coordination.
• 66 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 50 kA short-time withstand current for 1 s.
• Integrated Ekip Measuring Pro and Network Analyzer functionality.
• Four-pole fixed construction with front terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E1.2N series.
• 630 A rated uninterrupted current.
• 4-pole fixed configuration.
• Front terminal connections.
• Ekip Hi-Touch LSI solid-state electronic trip unit.
• Long-time overload protection (L).
• Short-time selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Integrated Ekip Measuring Pro measurement module.
• Integrated Network Analyzer functionality.
• Touch-sensitive display for protection configuration and monitoring.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 66 kA Icu at 400–440 V AC.
• 50 kA Icw for 1 s.
• Suitable for IT networks up to 690 V.

Advanced Protection and Measurement for Low-Voltage Distribution

Air circuit breakers such as the ABB SACE Emax 2 E1.2N provide switching, isolation and fault protection for low-voltage electrical distribution networks. The compact E1.2 platform combines high short-circuit performance with advanced electronic protection, helping switchboard designers achieve dependable protection and selective coordination while minimising installation space.

The Ekip Hi-Touch LSI electronic release adds advanced measurement and network-analysis capabilities to configurable long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. This combination makes the 1SDA071358R1 particularly suitable for installations where circuit protection, electrical measurement, power-quality visibility and dependable system operation are required from a single integrated breaker platform.

Typical Applications

• Low-voltage switchboard incomer protection.
• Industrial power distribution systems.
• Commercial building electrical distribution.
• Feeder and distribution circuit protection.
• Transformer secondary distribution systems.
• Manufacturing and process facilities.
• Data centres and critical infrastructure.
• Power distribution systems requiring integrated measurement and network analysis.