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ABB 1SDA072457R1 SACE Emax 2 E4.2V 2000 A three-pole withdrawable air circuit breaker moving part with an Ekip G Touch LSIG electronic trip unit for advanced generator and low-voltage power distribution protection.
£13,126.29
The ABB 1SDA072457R1 is a high-performance Emax 2 E4.2V 2000 air circuit breaker moving part designed for protection and control of demanding low-voltage power distribution systems. Configured as an E4.2V 2000 Ekip G Touch LSIG 3p WMP, it combines a 2000 A rated current, three-pole construction and ABB's advanced Ekip G Touch electronic trip unit with comprehensive LSIG protection.
As part of the ABB SACE Emax 2 air circuit breaker series, the E4.2V is engineered for installations requiring exceptionally high short-circuit performance. The V performance level provides an ultimate short-circuit breaking capacity of 150 kA at 415 V AC and 100 kA at 690 V AC, making this breaker suitable for critical industrial and infrastructure distribution systems with high prospective fault currents.
The Ekip G Touch LSIG release provides long-time, short-time, instantaneous and earth-fault protection together with generator-oriented protection functionality. Its withdrawable moving-part (WMP) construction is designed for use with the appropriate Emax 2 fixed part, enabling efficient isolation, inspection and maintenance within compatible withdrawable switchboards.
Air circuit breakers such as the ABB Emax 2 E4.2V protect high-current low-voltage networks by detecting abnormal electrical conditions and interrupting fault currents before they can cause serious damage to equipment or distribution infrastructure. The V performance level is particularly suited to systems with very high prospective short-circuit currents, providing breaking capacity up to 150 kA at 415 V AC.
The Ekip G Touch LSIG trip unit extends this capability with advanced electronic protection suitable for generator and power-distribution applications. Long-time protection responds to sustained overloads, short-time protection assists with selective coordination, instantaneous protection responds rapidly to severe short circuits and earth-fault protection detects current flowing through unintended earth paths.
| Series | SACE Emax 2 |
|---|---|
| Frame | E4.2 |
| Performance level | V |
| Model / configuration | E4.2V 2000 Ekip G Touch LSIG 3p WMP |
| ABB order code | 1SDA072457R1 |
| Product type | Air circuit breaker moving part |
| Current type | AC |
| Rated current | 2000 A |
| Rated uninterrupted current (Iu) | 2000 A |
| Number of poles | 3 |
| Trip unit | Ekip G Touch LSIG |
| Release type | Electronic / solid-state |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Integrated earth-fault protection | Yes |
| Rated operational voltage | 690 V AC |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 150 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 100 kA |
| Overload release adjustment range | 800–2000 A |
| Short-time delayed short-circuit adjustment range | 1200–20,000 A |
| Instantaneous short-circuit adjustment range | 3000–30,000 A |
| Auxiliary changeover contacts | 4 |
| Execution | Withdrawable moving part (WMP) |
| Depth | 383 mm |
| Height | 425 mm |
| Standards | IEC |
| Product group | Emax2 Air Circuit Breaker |
The ABB 1SDA072457R1 is a SACE Emax 2 E4.2V 2000 three-pole withdrawable air circuit breaker moving part equipped with an Ekip G Touch LSIG electronic trip unit.
The breaker has a rated uninterrupted current of 2000 A for high-current low-voltage power distribution applications.
The LSIG configuration provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, while the Ekip G platform provides functionality intended for generator applications.
The E4.2V 2000 provides an ultimate short-circuit breaking capacity of 150 kA at 415 V AC and 100 kA at 690 V AC.
WMP identifies the withdrawable moving-part execution, which is designed for installation with the appropriate Emax 2 fixed part in a compatible withdrawable switchboard.
ABB SACE Emax 2 air circuit breakers combine high short-circuit performance, advanced electronic protection and flexible system integration for dependable control and protection of demanding industrial, generator and infrastructure power systems.
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