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1SDA071849R1 ABB E4.2H 4000 Ekip Hi-Touch LSIG 4p FHR Air Circuit Breaker
ABB 1SDA071849R1 Emax 2 E4.2H 4000 Ekip Hi-Touch LSIG four-pole fixed air circuit breaker rated at 4000 A and 690 V AC with 100 kA breaking capacity at 440 V AC and advanced overload, short-circuit and earth-fault protection.
£26,047.89
Why Choose the ABB E4.2H 4000 Ekip Hi-Touch LSIG 4p FHR Air Circuit Breaker?
The ABB 1SDA071849R1 is a high-performance Emax 2 air circuit breaker (ACB) designed for advanced protection, switching, measurement and control in demanding low-voltage electrical distribution systems. Identified as the E4.2H 4000 Ekip Hi-Touch LSIG 4p FHR, this four-pole fixed circuit breaker combines a 4000 A rated current with ABB’s advanced Ekip Hi-Touch LSIG electronic trip unit.
As part of the ABB SACE Emax 2 series, the E4.2H provides high short-circuit performance together with sophisticated electronic protection and power-management capabilities. The Ekip Hi-Touch LSIG release provides long-time overload, short-time selective short-circuit, instantaneous short-circuit and earth-fault protection, delivering comprehensive protection for critical electrical distribution equipment.
With a rated operational voltage of up to 690 V AC, an ultimate short-circuit breaking capacity of 100 kA at 440 V AC and a short-time withstand current of 85 kA for 1 s, the 1SDA071849R1 is engineered for high-current installations with substantial prospective fault levels. Its four-pole fixed construction and rear flat horizontal terminals provide a robust configuration for permanent integration into industrial and infrastructure switchboards.
Key Advantages
- High-performance ABB Emax 2 air circuit breaker for demanding low-voltage power distribution.
- 4000 A rated current for large industrial and infrastructure installations.
- 100 kA Icu at 440 V AC for installations with high prospective fault currents.
- 85 kA short-time withstand current for 1 s supports selective protection strategies.
- Four-pole configuration for switching and protection of three phases and neutral.
- Advanced Ekip Hi-Touch LSIG electronic trip unit with overload, short-circuit and earth-fault protection.
- Advanced measurement, monitoring and power-management capabilities for modern electrical distribution systems.
- Fixed construction with rear flat horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2H series.
- 4000 A rated uninterrupted current.
- 690 V AC rated operational voltage.
- 100 kA Icu at 440 V AC.
- 85 kA rated short-time withstand current for 1 s.
- Ekip Hi-Touch LSIG electronic protection release.
- Long-time overload, short-time selective, instantaneous and earth-fault protection functions.
- Advanced electrical measurement and power-management functionality.
- Touch interface for protection settings, measurements and operating information.
- 4-pole fixed circuit breaker configuration.
- Rear flat horizontal main terminals.
- Designed for integration with automation and energy-management systems.
Advanced High-Current Protection and Power Management
Air circuit breakers such as the ABB Emax 2 E4.2H provide switching, isolation and protection for high-current low-voltage electrical systems. The E4.2H 4000 combines a substantial 4000 A current rating with an ultimate breaking capacity of 100 kA at 440 V AC, making it suitable for main distribution positions and other critical points where high prospective short-circuit currents can occur.
The Ekip Hi-Touch LSIG electronic trip unit provides configurable long-time overload, short-time selective, instantaneous short-circuit and earth-fault protection while supporting the advanced measurement and power-management capabilities of the Emax 2 platform. This combination helps protect transformers, busbars, cables and connected equipment while supporting selectivity, continuity of service and integration with modern electrical automation systems.
Typical Applications
- Main incomer protection in low-voltage switchboards.
- Industrial power distribution systems.
- Transformer and installation protection.
- Manufacturing and process plants.
- Data centres and critical power installations.
- Commercial and infrastructure electrical distribution.
- Automation and energy-management systems.
- High-current installations requiring integrated earth-fault protection.
Technical Specifications
| Product group | Emax 2 Air Circuit Breaker |
|---|---|
| Range | SACE Emax 2 |
| Series | E4.2H |
| ABB order code / MPN | 1SDA071849R1 |
| EAN | 8015644756994 |
| Product type | Air circuit breaker |
| Rated current (In) | 4000 A |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational voltage (Ue) | 690 V AC |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 100 kA |
| Rated short-time withstand current (Icw) | 85 kA for 1 s |
| Number of poles | 4 |
| Short-circuit performance level | H |
| Trip unit | Ekip Hi-Touch LSIG |
| Release type | Electronic |
| Protection functions | LSIG |
| Long-time overload protection | Yes |
| Short-time selective short-circuit protection | Yes |
| Instantaneous short-circuit protection | Yes |
| Earth-fault protection | Yes |
| Overload release adjustment range | 1600–4000 A |
| Short-time short-circuit adjustment range | 2400–40000 A |
| Installation | Fixed |
| Terminal connection | Rear flat horizontal |
| Main circuit connection | Bolt connection |
| Current type | AC |
| Standard | IEC |
| Country of origin | Italy |
Frequently Asked Questions
What is the ABB 1SDA071849R1 used for?
The ABB 1SDA071849R1 is an Emax 2 air circuit breaker designed for high-current low-voltage switching, protection, monitoring and power management in industrial, commercial and infrastructure electrical distribution systems.
What is the current rating of the ABB 1SDA071849R1?
The E4.2H 4000 has a rated uninterrupted current of 4000 A, making it suitable for large high-current electrical distribution systems.
What is the breaking capacity of the E4.2H 4000?
The E4.2H 4000 provides an ultimate short-circuit breaking capacity of 100 kA at 440 V AC and a rated short-time withstand current of 85 kA for 1 s.
What protection functions does the Ekip Hi-Touch LSIG provide?
The Ekip Hi-Touch LSIG electronic trip unit provides long-time overload, short-time selective short-circuit, instantaneous short-circuit and earth-fault protection, together with advanced measurement and power-management capabilities.
How is the ABB 1SDA071849R1 installed?
This model is a four-pole fixed air circuit breaker equipped with rear flat horizontal terminals for permanent integration into compatible low-voltage switchboards and power-distribution assemblies.
Trusted High-Performance Power Protection
ABB SACE Emax 2 air circuit breakers combine high-current switching capability with advanced electronic protection, measurement and power-management functionality, helping demanding industrial and infrastructure installations achieve dependable overload, short-circuit and earth-fault protection with improved selectivity and continuity of service.
