1SDA071359R1 ABB E1.2N 630 Ekip Hi-Touch LSIG 4-Pole Air Circuit Breaker

Why Choose the ABB 1SDA071359R1 E1.2N 630 Ekip Hi-Touch LSIG Air Circuit Breaker?

The ABB 1SDA071359R1 is a high-performance SACE Emax 2 E1.2N air circuit breaker designed for advanced protection, switching, measurement and monitoring in low-voltage power distribution systems. Rated at 630 A, this four-pole fixed breaker combines the compact E1.2N frame with ABB's advanced Ekip Hi-Touch LSIG solid-state trip unit.

The Ekip Hi-Touch LSIG release provides long-time overload (L), short-time selective short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. Its advanced electronic platform supports detailed electrical measurement, network analysis and configurable protection, making it well suited to distribution systems requiring selectivity, monitoring and comprehensive fault protection.

The 1SDA071359R1 is supplied in a fixed four-pole configuration with front terminals and includes four auxiliary contacts plus open/closed breaker position indication. With an ultimate short-circuit breaking capacity of 66 kA at 400/415 V AC and operation up to 690 V AC, it provides robust protection for industrial, commercial and critical infrastructure distribution systems.

Key Advantages

• Compact 630 A SACE Emax 2 air circuit breaker for demanding low-voltage distribution.
• E1.2N performance level provides high short-circuit capability in a compact frame.
• Advanced Ekip Hi-Touch LSIG electronic protection release.
• Long-time, short-time, instantaneous and earth-fault protection functions.
• 66 kA ultimate short-circuit breaking capacity at 400/415 V AC.
• Advanced measurement and power-quality analysis capabilities through the Hi-Touch platform.
• Four-pole fixed construction with 100% neutral-pole current capability.
• Front terminals simplify integration into suitable low-voltage switchboards.

Key Features

• ABB SACE Emax 2 E1.2N series.
• 630 A rated uninterrupted current.
• 4-pole fixed configuration.
• Front terminal connections.
• Ekip Hi-Touch LSIG solid-state electronic trip unit.
• Long-time overload protection (L).
• Short-time selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Integrated earth-fault protection (G).
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 66 kA Icu at 400/415 V AC.
• Integrated advanced measurement and Network Analyzer functionality.
• Four auxiliary contacts and breaker open/closed position indication.

Advanced LSIG Protection and Power-System Monitoring

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 sophisticated electronic protection, enabling dependable coordination while helping designers minimise the space required within modern switchboards.

The Ekip Hi-Touch LSIG release extends protection to overloads, delayed and instantaneous short circuits and earth faults while also supporting advanced measurement and network-analysis functions. This combination makes the 1SDA071359R1 particularly suitable for installations where comprehensive circuit protection, selectivity, electrical visibility and power-quality supervision are required from an integrated breaker platform.

Typical Applications

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