Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA071840R1 ABB E4.2S 4000 Ekip G Hi-Touch LSIG 4p FHR Air Circuit Breaker 4000 A
ABB 1SDA071840R1 SACE Emax 2 E4.2S 4000 Ekip G Hi-Touch LSIG four-pole fixed air circuit breaker rated at 4000 A with 85 kA breaking capacity at 440 V AC and advanced generator-oriented LSIG protection.
£25,170.88
Why Choose the ABB E4.2S 4000 Ekip G Hi-Touch LSIG 4p FHR Air Circuit Breaker?
The ABB E4.2S 4000 Ekip G Hi-Touch LSIG 4p FHR, order code 1SDA071840R1, is a high-current four-pole air circuit breaker (ACB) designed for generator protection and demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 series, it combines a 4000 A rated uninterrupted current with the advanced Ekip G Hi-Touch LSIG electronic protection release and the high short-circuit performance of the E4.2S frame.
This fixed circuit breaker incorporates the Ekip G Hi-Touch LSIG electronic trip unit, combining long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection with advanced generator-oriented protection, measurement and monitoring capabilities. The Hi-Touch platform is intended for sophisticated electrical installations requiring comprehensive protection, detailed system information and flexible integration with modern power-management architectures.
The E4.2S 4000 provides an ultimate short-circuit breaking capacity of 85 kA at 440 V AC and a 66 kA short-time withstand current for 1 s. This version features a fixed four-pole construction with rear horizontal connections, making it suitable for high-current generator switchboards, industrial distribution systems and critical power installations.
Key Advantages
- High-current ABB SACE Emax 2 air circuit breaker for generator and power distribution applications.
- 4000 A rated uninterrupted current for large electrical installations and main distribution circuits.
- Four-pole configuration for switching and protection of three phases and neutral.
- Advanced Ekip G Hi-Touch LSIG electronic trip unit with generator-oriented protection capabilities.
- Long-time, short-time, instantaneous and earth-fault protection in one advanced electronic release.
- 85 kA ultimate short-circuit breaking capacity at 440 V AC.
- 66 kA short-time withstand current for 1 s supports selective coordination in high-current systems.
- Advanced measurement and monitoring capabilities for critical electrical installations.
- Fixed configuration with rear horizontal connections for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2S series.
- 4000 A rated uninterrupted current.
- Four-pole construction.
- 690 V AC rated operational voltage.
- S short-circuit performance level.
- 85 kA Icu at 440 V AC.
- 66 kA short-time withstand current for 1 s.
- Ekip G Hi-Touch LSIG advanced electronic protection release.
- Long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
- Generator-oriented protection functionality for power-generation applications.
- Overload protection adjustable from 1600–4000 A.
- Short-time short-circuit protection adjustable from 2400–40000 A.
- Instantaneous short-circuit protection adjustable from 6000–60000 A.
- Advanced measurement, monitoring and power-quality functionality.
- Four auxiliary changeover contacts.
- IP30 degree of protection.
- Fixed circuit-breaker construction with rear horizontal main connections.
- Compatible with an optional motor operating mechanism.
Advanced Generator and LSIG Power Protection
Generator circuits can require protection characteristics specifically suited to generating equipment as well as conventional distribution-system protection. The ABB Ekip G Hi-Touch platform combines generator-oriented functionality with comprehensive LSIG protection against overloads, short circuits and earth faults, helping protect generators, cables, busbars, switchgear and connected equipment in critical electrical systems.
The E4.2S frame combines a substantial 4000 A current rating with 85 kA Icu at 440 V AC and 66 kA Icw for 1 s. Together with the advanced Ekip G Hi-Touch release, the 1SDA071840R1 is particularly suited to generator switchboards and high-capacity distribution networks where sophisticated protection, system monitoring, selective coordination and dependable fault interruption are required.
Typical Applications
- Generator protection and generator switchboards.
- Standby and emergency power generation systems.
- Main low-voltage electrical distribution switchboards.
- Critical power distribution networks.
- Industrial power generation and distribution systems.
- Manufacturing and process facilities.
- Large commercial buildings and infrastructure installations.
- High-current feeder and distribution circuits.
- Systems requiring integrated earth-fault and generator-oriented protection.
Technical Specifications
| Range | SACE Emax 2 |
|---|---|
| Series | E4.2S |
| ABB order code | 1SDA071840R1 |
| EAN / GTIN | 8015644756901 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational voltage | up to 690 V AC |
| Number of poles | 4 |
| Short-circuit performance level | S |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 85 kA |
| Short-time withstand current (Icw) | 66 kA for 1 s |
| Trip unit | Ekip G Hi-Touch LSIG |
| Release type | Advanced electronic |
| Protection functions | Long-time (L), short-time (S), instantaneous (I) and earth-fault (G) |
| Generator protection | Yes |
| Integrated earth-fault protection | Yes |
| Overload release adjustment | 1600–4000 A |
| Short-time short-circuit release adjustment | 2400–40000 A |
| Instantaneous short-circuit release adjustment | 6000–60000 A |
| Mounting type | Fixed |
| Main terminal position | Rear |
| Main circuit connection | Bolt connection |
| Auxiliary contacts | 4 changeover contacts |
| Motor drive | Optional |
| Integrated motor drive | No |
| Degree of protection | IP30 |
| Power loss | 465 W |
Frequently Asked Questions
What is the ABB 1SDA071840R1 used for?
The ABB 1SDA071840R1 is a four-pole air circuit breaker designed for generator protection and high-current low-voltage power distribution, providing advanced protection against overloads, short circuits and earth faults.
What is the rated current of the ABB 1SDA071840R1?
The E4.2S 4000 Ekip G Hi-Touch LSIG 4p FHR has a rated uninterrupted current of 4000 A and is designed for low-voltage systems operating at up to 690 V AC.
What is the short-circuit performance of the ABB 1SDA071840R1?
The E4.2S provides an ultimate short-circuit breaking capacity of 85 kA at 440 V AC and a short-time withstand current of 66 kA for 1 s.
What does the Ekip G Hi-Touch LSIG trip unit provide?
The Ekip G Hi-Touch LSIG electronic trip unit provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection together with advanced generator-oriented protection, measurement and monitoring capabilities.
How is the ABB 1SDA071840R1 installed?
This model is a fixed four-pole circuit breaker with rear horizontal connections, designed for installation within compatible generator switchboards, low-voltage switchboards and high-capacity power distribution assemblies.
Trusted Generator and Power Protection from ABB
ABB SACE Emax 2 air circuit breakers combine advanced Ekip electronic protection with robust switching and high short-circuit performance, providing dependable generator protection, monitoring and power management for demanding industrial, commercial and infrastructure electrical systems.
