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ABB 1SDA071859R1 E4.2V 4000 Ekip Hi-Touch LSIG four-pole fixed air circuit breaker with a 4000 A rated current, integrated earth-fault protection, rear horizontal terminals, 150 kA ultimate short-circuit breaking capacity and 100 kA short-time withstand current.
£30,476.92
The ABB E4.2V 4000 Ekip Hi-Touch LSIG 4p FHR, order code 1SDA071859R1, is a high-performance four-pole SACE Emax 2 air circuit breaker designed for protection, switching, measurement and supervision in demanding low-voltage power-distribution systems. Part of the ABB SACE Emax 2 E4.2 series, this fixed breaker combines a 4000 A rated current with the advanced Ekip Hi-Touch LSIG electronic trip unit.
The E4.2V performance level provides exceptional fault-interruption capability, with a rated ultimate short-circuit breaking capacity of 150 kA and rated short-time withstand current of 100 kA. Its Ekip Hi-Touch LSIG trip unit provides long-time overload, selective short-time, instantaneous short-circuit and earth-fault protection, supporting comprehensive protection and selective coordination throughout complex electrical distribution networks.
This version is a four-pole fixed air circuit breaker equipped with rear horizontal (FHR) terminals. The combination of high-current E4.2 construction, V-level breaking performance, integrated earth-fault protection and the sophisticated Ekip Hi-Touch platform makes the 1SDA071859R1 particularly suitable for major industrial switchboards, data centres, infrastructure and other critical power systems.
High-current electrical systems require circuit breakers capable of safely interrupting severe fault currents while maintaining effective coordination with other protective devices. The ABB E4.2V combines a 4000 A current rating, 150 kA ultimate breaking capacity and 100 kA short-time withstand capability, making the 1SDA071859R1 suitable for major incoming and distribution circuits where high prospective fault levels must be managed.
The Ekip Hi-Touch LSIG trip unit extends conventional circuit protection with advanced measurement, monitoring and network-analysis capabilities. Long-time, short-time, instantaneous and earth-fault protection help safeguard cables, busbars, transformers and other critical equipment, while the Hi-Touch platform supports integration into sophisticated energy-management and automation architectures.
| Series | SACE Emax 2 E4.2 |
|---|---|
| Order code / MPN | 1SDA071859R1 |
| Product type | Air circuit breaker (ACB) |
| Product group | Emax 2 Air Circuit Breaker |
| Frame / performance level | E4.2V |
| Rated current | 4000 A |
| Number of poles | 4 |
| Trip unit | Ekip Hi-Touch LSIG |
| Release technology | Electronic |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Integrated earth-fault protection | Yes |
| Rated ultimate short-circuit breaking capacity | 150 kA |
| Rated short-time withstand current | 100 kA |
| Execution | Fixed |
| Main terminals | Rear horizontal (FHR) |
| Frame size | E4.2 |
| Protection interface | Ekip Hi-Touch |
| Application | Low-voltage power distribution |
The ABB 1SDA071859R1 is an Emax 2 air circuit breaker designed for protection, switching and supervision of high-current low-voltage power-distribution systems in industrial, commercial and critical infrastructure applications.
The ABB E4.2V 4000 has a rated current of 4000 A, making it suitable for high-current main incoming and distribution circuits.
The Ekip Hi-Touch LSIG electronic trip unit provides long-time overload, selective short-time, instantaneous short-circuit and integrated earth-fault protection together with advanced measurement and monitoring functionality.
The E4.2V performance level provides a rated ultimate short-circuit breaking capacity of 150 kA and a rated short-time withstand current of 100 kA.
The 1SDA071859R1 is a fixed four-pole air circuit breaker configured with rear horizontal (FHR) terminals for integration into low-voltage distribution switchboards.
ABB SACE Emax 2 air circuit breakers combine exceptional fault-interruption performance, advanced LSIG electronic protection and sophisticated measurement capabilities to provide dependable protection and supervision for demanding low-voltage power-distribution systems.
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