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1SDA071856R1 ABB E4.2V 4000 Ekip Touch LSIG 4P Air Circuit Breaker
ABB 1SDA071856R1 SACE Emax 2 E4.2V fixed four-pole 4000 A air circuit breaker with an Ekip Touch LSIG electronic trip unit for comprehensive high-current low-voltage power distribution protection.
£27,714.27
Why Choose the ABB E4.2V 4000 Ekip Touch LSIG 4P Air Circuit Breaker?
The ABB 1SDA071856R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker (ACB) rated at 4000 A, engineered for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 series, this fixed four-pole breaker combines exceptionally high short-circuit performance with the advanced Ekip Touch LSIG electronic trip unit.
The Ekip Touch LSIG electronic release provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection. Its colour touchscreen interface supports intuitive configuration and monitoring, while the Ekip platform can be integrated with communication and power-management solutions for sophisticated industrial and infrastructure installations.
With a rated uninterrupted current of 4000 A, operation on low-voltage systems up to 690 V AC and an 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, providing a robust solution for main switchboards and critical high-current feeders.
Key Advantages
- High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
- 4000 A rated uninterrupted current for high-current electrical installations.
- Four-pole configuration for comprehensive switching and protection.
- Advanced Ekip Touch LSIG electronic trip unit with intuitive touchscreen interface.
- 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 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 Touch LSIG electronic protection release.
- Adjustable long-time overload protection.
- Adjustable short-time selective protection.
- Adjustable instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Large colour touchscreen for intuitive configuration and operation.
- Compatible with the Ekip platform for advanced connectivity and power management.
Advanced LSIG Protection for High-Fault-Level Distribution
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 installations where exceptionally high prospective short-circuit currents must be safely interrupted.
The Ekip Touch LSIG release combines long-time overload (L), short-time selective (S), instantaneous short-circuit (I) and earth-fault (G) protection. Adjustable electronic protection settings support selective coordination between upstream and downstream devices, while the touchscreen interface simplifies configuration and helps engineers optimise protection throughout complex power distribution networks.
Typical Applications
- Main low-voltage distribution switchboards.
- High-current industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary protection.
- Generator and utility distribution systems.
- Very high fault-level electrical networks.
- Critical power and high-current feeder protection.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| ABB order code | 1SDA071856R1 |
| Product type | Air circuit breaker (ACB) |
| Frame | E4.2V |
| Performance level | V |
| Rated uninterrupted current (Iu) | 4000 A |
| Number of poles | 4 |
| Installation | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | Ekip Touch LSIG |
| Release type | Electronic |
| Protection functions | L, S, I and G |
| Rated voltage range | 220–690 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 150 kA at 400 V AC, 50 Hz |
| Overload release adjustment range | 1600–4000 A |
| Instantaneous short-circuit release adjustment range | 6000–60000 A |
| Integrated earth-fault protection | Yes |
| Trip indication | Yes |
| EAN | 8015644757069 |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA071856R1 used for?
The ABB 1SDA071856R1 is an Emax 2 air circuit breaker designed for switching and comprehensive protection in high-current low-voltage power distribution systems, particularly where exceptionally high short-circuit performance is 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 Touch LSIG trip unit provide?
The Ekip Touch LSIG provides long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection, represented by the L, S, I and G protection functions.
What is the breaking capacity of the ABB 1SDA071856R1?
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 1SDA071856R1 installed?
This version is a fixed four-pole air circuit breaker with rear horizontal terminals for integration into low-voltage switchboards.
Trusted for High-Fault-Level Power Distribution
ABB SACE Emax 2 air circuit breakers combine exceptionally high short-circuit performance, comprehensive electronic protection and advanced power-management capabilities for dependable operation in demanding industrial, commercial and infrastructure power distribution systems.
