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1SDA071837R1 ABB E4.2S 4000 Ekip G Touch LSIG 4p FHR Air Circuit Breaker
ABB 1SDA071837R1 Emax 2 E4.2S 4000 Ekip G Touch LSIG four-pole fixed air circuit breaker rated at 4000 A and 690 V AC with up to 85 kA breaking capacity and advanced generator, overload, short-circuit and earth-fault protection.
£24,542.36
Why Choose the ABB E4.2S 4000 Ekip G Touch LSIG 4p FHR Air Circuit Breaker?
The ABB 1SDA071837R1 is a high-current Emax 2 air circuit breaker (ACB) designed for protection, switching and control in demanding low-voltage electrical distribution and generator applications. Identified as the E4.2S 4000 Ekip G Touch LSIG 4p FHR, this four-pole fixed circuit breaker combines a 4000 A rated current with ABB’s Ekip G Touch LSIG solid-state electronic trip unit.
As part of the ABB SACE Emax 2 series, the E4.2S provides high short-circuit performance together with advanced electronic protection. The Ekip G Touch LSIG release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, with the Ekip G platform specifically suited to protection and control requirements associated with generators and electrical distribution systems.
With a rated operational voltage of 690 V AC, an ultimate short-circuit breaking capacity of 85 kA at 400–440 V AC and 66 kA at 500–690 V AC, the 1SDA071837R1 is engineered for demanding high-current installations. Its four-pole fixed construction and rear flat horizontal terminals provide a robust configuration for permanent integration into low-voltage switchboards and power-distribution assemblies.
Key Advantages
- High-current ABB Emax 2 air circuit breaker for demanding low-voltage distribution and generator applications.
- 4000 A rated uninterrupted current for large industrial and infrastructure installations.
- 85 kA Icu at 400–440 V AC for high fault-level applications.
- 66 kA Icu at 500–690 V AC for dependable protection at higher system voltages.
- Four-pole configuration for switching and protection of three phases and neutral.
- Advanced Ekip G Touch LSIG electronic trip unit with integrated earth-fault protection.
- 66 kA short-time withstand current for 1 s and 3 s supports selective protection strategies.
- Fixed construction with rear flat horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2S series.
- 4000 A rated uninterrupted current.
- 690 V AC rated operational voltage.
- 1000 V AC rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 85 kA Icu at 400–440 V AC.
- 66 kA Icu at 500–690 V AC.
- 66 kA rated short-time withstand current.
- Ekip G Touch LSIG solid-state electronic protection release.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- 1600–4000 A overload release adjustment range.
- 2400–40000 A short-time delayed short-circuit adjustment range.
- 6000–60000 A instantaneous short-circuit adjustment range.
- 4-pole fixed circuit breaker configuration.
- Rear flat horizontal main terminals.
- Four auxiliary change-over contacts with circuit-breaker open/closed position indication.
- Suitable for 690 V IT networks.
Advanced Generator and Distribution Protection
Air circuit breakers such as the ABB Emax 2 E4.2S provide switching, isolation and protection for high-current low-voltage electrical systems. The E4.2S 4000 combines a substantial 4000 A current rating with an ultimate breaking capacity of up to 85 kA, making it suitable for main distribution positions and other critical points within industrial, infrastructure and generator-based power systems.
The Ekip G Touch LSIG electronic trip unit provides adjustable long-time overload, short-time and instantaneous short-circuit and earth-fault protection. Its generator-oriented functionality makes it particularly suitable where generating sets form part of the electrical network, while the adjustable protection characteristics support selective coordination and help protect generators, transformers, cables, busbars and connected equipment.
Typical Applications
- Generator protection and generator-based power systems.
- 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.
- High-current installations requiring integrated earth-fault protection.
Technical Specifications
| Product group | Emax 2 Air Circuit Breaker |
|---|---|
| Range | SACE Emax 2 |
| Series | E4.2S |
| ABB order code / MPN | 1SDA071837R1 |
| EAN | 8015644756871 |
| Product type | Air circuit breaker |
| Rated current (In) | 4000 A |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500–525 V AC | 66 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 66 kA |
| Rated service short-circuit breaking capacity (Ics) | 100% of Icu |
| Rated short-time withstand current (Icw) | 66 kA for 1 s / 66 kA for 3 s |
| Number of poles | 4 |
| Neutral pole current | 100% |
| Short-circuit performance level | S |
| Trip unit | Ekip G Touch LSIG |
| Release type | Solid-state electronic |
| Protection functions | LSIG |
| 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 |
| Installation | Fixed |
| Terminal connection | Rear flat horizontal |
| Current type | AC |
| Auxiliary contacts | 4 change-over contacts |
| Electrical durability at ≤440 V | 5000 cycles |
| Electrical durability at 500–690 V | 4000 cycles |
| Mechanical durability | 15,000 cycles |
| Power loss | 465 W |
| Dimensions (H × W × D) | 371 × 510 × 270 mm |
| Suitable for IT networks | Yes, up to 690 V |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA071837R1 used for?
The ABB 1SDA071837R1 is an Emax 2 air circuit breaker designed for high-current low-voltage switching and protection, with an Ekip G Touch trip unit suited to generator and electrical distribution applications.
What is the current rating of the ABB 1SDA071837R1?
The E4.2S 4000 has a rated uninterrupted current of 4000 A, making it suitable for large high-current electrical distribution and generator systems.
What is the breaking capacity of the E4.2S 4000?
The breaker provides an ultimate short-circuit breaking capacity of 85 kA at 400–440 V AC and 66 kA at 500–690 V AC, with rated service breaking capacity equal to 100% of Icu.
What protection functions does the Ekip G Touch LSIG provide?
The Ekip G Touch LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, with functionality designed for generator and power-distribution applications.
How is the ABB 1SDA071837R1 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, helping generator, industrial and infrastructure installations achieve dependable overload, short-circuit and earth-fault protection while supporting selective and reliable low-voltage power distribution.
