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1SDA071857R1 ABB E4.2V 4000 Ekip G Touch LSIG 4P Air Circuit Breaker
ABB 1SDA071857R1 SACE Emax 2 E4.2V fixed four-pole 4000 A air circuit breaker with an Ekip G Touch LSIG electronic trip unit for advanced generator and high-current low-voltage power distribution protection.
£30,243.02
Why Choose the ABB E4.2V 4000 Ekip G Touch LSIG 4P Air Circuit Breaker?
The ABB 1SDA071857R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker (ACB) rated at 4000 A, engineered for generator protection and demanding low-voltage power distribution systems. This fixed four-pole breaker combines the E4.2V frame's exceptionally high short-circuit performance with the advanced Ekip G Touch LSIG electronic trip unit.
The Ekip G Touch LSIG solid-state release provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection together with generator-oriented protection and monitoring capabilities. Its touchscreen interface supports intuitive configuration, making the breaker particularly suitable for generating plants, standby power systems and critical electrical installations.
With a rated uninterrupted current of 4000 A, rated operational voltage of 690 V AC and ultimate short-circuit breaking capacity of 150 kA at 400 V AC, the E4.2V is designed for networks with exceptionally high prospective fault currents. This version is a fixed four-pole breaker with rear horizontal terminals and is fitted with four auxiliary changeover contacts plus circuit-breaker open/closed position indication.
Key Advantages
- High-performance ABB SACE Emax 2 air circuit breaker for generator and power distribution applications.
- 4000 A rated uninterrupted current for high-current electrical installations.
- Four-pole configuration for comprehensive switching and protection.
- Advanced Ekip G Touch LSIG electronic trip unit for generator-oriented applications.
- LSIG functionality provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection.
- 150 kA ultimate short-circuit breaking capacity at 400 V AC.
- Integrated earth-fault protection for enhanced electrical system protection.
- Fixed installation with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2V frame.
- 4000 A rated uninterrupted current.
- Four-pole construction.
- Fixed circuit-breaker execution.
- Rear horizontal terminals.
- Ekip G Touch LSIG solid-state electronic protection release.
- Adjustable long-time overload protection.
- Adjustable short-time selective protection.
- Adjustable instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Generator-oriented electronic protection and monitoring capabilities.
- Four auxiliary changeover contacts with breaker open/closed position indication.
Advanced Generator and High-Fault-Level Protection
ABB SACE Emax 2 air circuit breakers provide dependable switching and protection for demanding low-voltage electrical networks. The E4.2V combines a substantial 4000 A current rating with an ultimate breaking capacity of 150 kA at 400 V AC, making it particularly suitable for generator switchboards and distribution systems where exceptionally high prospective fault currents must be safely interrupted.
The Ekip G Touch LSIG release combines long-time overload (L), short-time selective (S), instantaneous short-circuit (I) and earth-fault (G) protection with functionality tailored to generator applications. Adjustable protection parameters and touchscreen operation support selective coordination and accurate configuration across sophisticated generation and power distribution networks.
Typical Applications
- Generator protection and generator switchboards.
- Standby and emergency power systems.
- Main low-voltage distribution switchboards.
- High-current industrial power distribution systems.
- Manufacturing and process plants.
- Transformer secondary and installation protection.
- Very high fault-level electrical networks.
- Critical power and high-current feeder protection.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| ABB order code | 1SDA071857R1 |
| Product type | Air circuit breaker (ACB) |
| Frame | E4.2V |
| Performance level | V |
| Rated uninterrupted current (Iu) | 4000 A |
| Number of poles | 4 |
| Current type | AC |
| Installation | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | Ekip G Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | L, S, I and G |
| Rated operational voltage | 690 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 150 kA at 400 V AC, 50 Hz |
| Overload release adjustment range | 1600–4000 A |
| Short-time delayed short-circuit adjustment range | 2400–40000 A |
| Instantaneous short-circuit adjustment range | 6000–60000 A |
| Integrated earth-fault protection | Yes |
| Auxiliary contacts | 4 changeover contacts |
| Breaker position indication | Open/closed |
| Degree of protection | IP30 |
| Mechanical durability | 15000 cycles |
| Electrical durability at Ue ≤ 440 V | 5000 cycles |
| Electrical durability at Ue 500–690 V | 4000 cycles |
| Product dimensions (W × H × D) | 510 × 371 × 270 mm |
| Product net weight | 70 kg |
| EAN | 8015644757076 |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071857R1 used for?
The ABB 1SDA071857R1 is an Emax 2 air circuit breaker designed for generator protection and high-current low-voltage power distribution, particularly where advanced protection and exceptionally high short-circuit performance are required.
What is the rated current of this circuit breaker?
The E4.2V circuit breaker has a rated uninterrupted current of 4000 A.
What protection functions does the Ekip G Touch LSIG trip unit provide?
The Ekip G Touch LSIG provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection, together with generator-oriented protection and monitoring capabilities.
What is the breaking capacity of the ABB 1SDA071857R1?
The E4.2V has an ultimate short-circuit breaking capacity of 150 kA at 400 V AC, 50 Hz, making it suitable for demanding high-fault-level power distribution systems.
How is the ABB E4.2V 4000 1SDA071857R1 installed?
This version is a fixed four-pole air circuit breaker equipped with rear horizontal terminals for integration into generator and low-voltage distribution switchboards.
Trusted for Generator and Critical Power Protection
ABB SACE Emax 2 air circuit breakers combine exceptionally high short-circuit performance, generator-oriented electronic protection and advanced power-management capabilities for dependable operation in demanding generation, industrial and critical power systems.
