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.
1SDA071754R1 ABB E4.2V 2500 Ekip Touch LI 4P FHR Air Circuit Breaker
ABB 1SDA071754R1 is a SACE Emax 2 E4.2V 2500 A four-pole fixed air circuit breaker with rear horizontal terminals and an Ekip Touch LI electronic trip unit for high-performance low-voltage power distribution protection.
£14,281.04
Why Choose the ABB 1SDA071754R1 Emax 2 Air Circuit Breaker?
The ABB 1SDA071754R1 is a high-performance SACE Emax 2 E4.2V air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Configured as an E4.2V 2500 Ekip Touch LI 4p FHR, it combines a rated uninterrupted current of 2500 A with ABB's advanced Ekip Touch LI electronic trip unit.
This four-pole fixed circuit breaker provides LI protection functions, covering long-time overload and instantaneous short-circuit protection. The Ekip Touch electronic release combines dependable circuit protection with the advanced interface and functionality of ABB's Emax 2 platform, making the breaker suitable for sophisticated industrial, commercial and infrastructure distribution systems.
With an E4.2V high-performance frame, a rated ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC and a short-time withstand current of 100 kA for 1 s, the 1SDA071754R1 is engineered for installations with very high prospective fault currents. Its fixed four-pole construction features rear horizontal terminals and is supplied with four auxiliary contacts and breaker open/closed position indication.
Key Advantages
- High-performance ABB SACE Emax 2 E4.2V air circuit breaker for demanding power distribution systems.
- 2500 A rated uninterrupted current for high-current electrical installations.
- 150 kA ultimate short-circuit breaking capacity at 400–440 V AC.
- 100 kA short-time withstand current for 1 s for robust fault-current performance.
- Advanced Ekip Touch LI electronic trip unit provides overload and instantaneous short-circuit protection.
- Four-pole fixed configuration with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2V series.
- 2500 A rated uninterrupted current (Iu).
- Four-pole configuration with 100% neutral pole current rating.
- Fixed mounting construction.
- Rear horizontal terminals (FHR).
- Ekip Touch LI electronic trip unit.
- LI protection for long-time overload and instantaneous short-circuit conditions.
- 690 V AC rated operational voltage.
- 150 kA rated ultimate short-circuit breaking capacity at 400–440 V AC.
- 100 kA rated short-time withstand current for 1 s.
High-Performance Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage electrical networks against overloads and short circuits while providing switching and isolation functions within power distribution assemblies. The E4.2V performance level provides exceptionally high fault interruption capability, making it suitable for installations where high prospective short-circuit currents demand robust protection.
The Ekip Touch LI electronic trip unit provides long-time overload and instantaneous short-circuit protection while offering the advanced user interface associated with ABB's Ekip Touch platform. Combined with the Emax 2 architecture, the 1SDA071754R1 provides a dependable solution for main distribution switchboards, industrial power systems and critical electrical infrastructure.
Typical Applications
- Main incoming protection for low-voltage switchboards.
- Industrial power distribution systems.
- High-current feeder protection.
- Manufacturing and process industry electrical systems.
- Commercial and infrastructure power distribution.
- Installations with high prospective short-circuit currents.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E4.2V |
| ABB order code | 1SDA071754R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Number of poles | 4 |
| Neutral pole current | 100% |
| Trip unit | Ekip Touch LI |
| Release type | Electronic |
| Protection functions | LI |
| Rated operational voltage | 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 400–440 V AC | 150 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 100 kA |
| Rated service short-circuit breaking capacity (Ics) | 100% of Icu |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Rated short-time withstand current (Icw), 3 s | 75 kA |
| Mounting version | Fixed |
| Terminal arrangement | Rear horizontal |
| Power loss | 425 W |
| Product net width | 510 mm |
| Product net height | 371 mm |
| Product net depth | 270 mm |
| Product net weight | 70 kg |
| EAN | 8015644756048 |
| Standard | IEC 60947-2 |
| Product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA071754R1 used for?
The ABB 1SDA071754R1 is a 2500 A four-pole air circuit breaker designed for protection and switching in high-current low-voltage power distribution systems.
What trip unit is fitted to the ABB 1SDA071754R1?
The circuit breaker is fitted with an Ekip Touch LI electronic trip unit for advanced overload and short-circuit protection.
What protection functions does the Ekip Touch LI provide?
The LI configuration provides long-time overload and instantaneous short-circuit protection.
What is the current rating of the ABB 1SDA071754R1?
The E4.2V circuit breaker has a rated uninterrupted current of 2500 A.
What is the breaking capacity of this Emax 2 circuit breaker?
The E4.2V 2500 has a rated ultimate short-circuit breaking capacity of 150 kA at 400–440 V AC and 100 kA at 690 V AC.
Is the ABB 1SDA071754R1 fixed or withdrawable?
This model is a fixed four-pole circuit breaker equipped with rear horizontal terminals.
Trusted by Power Distribution Professionals Worldwide
ABB SACE Emax 2 air circuit breakers are engineered for reliable protection and switching of demanding low-voltage electrical networks, combining robust fault interruption performance with advanced electronic protection for industrial, commercial and infrastructure power distribution systems.
