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1SDA071844R1 ABB E4.2H 4000 Ekip Touch LI 4P FHR Air Circuit Breaker
ABB 1SDA071844R1 is a SACE Emax 2 E4.2H 4000 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.
£22,452.07
Why Choose the ABB 1SDA071844R1 Emax 2 Air Circuit Breaker?
The ABB 1SDA071844R1 is a high-performance SACE Emax 2 E4.2H air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. Configured as an E4.2H 4000 Ekip Touch LI 4p FHR, it combines a rated uninterrupted current of 4000 A with ABB's advanced Ekip Touch LI solid-state 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 release provides adjustable protection through its touchscreen interface, combining straightforward operation with precise electronic protection for industrial, commercial and infrastructure distribution systems.
With an E4.2H high-performance frame, the 1SDA071844R1 provides a rated ultimate short-circuit breaking capacity of 100 kA at 380–440 V AC and 85 kA at 500–690 V AC, together with a rated short-time withstand current of 85 kA for 1 s. Its fixed four-pole construction features rear horizontal terminals and four auxiliary contacts for integration into high-current switchboards.
Key Advantages
- High-performance ABB SACE Emax 2 E4.2H air circuit breaker for demanding low-voltage distribution systems.
- 4000 A rated uninterrupted current for high-current electrical installations.
- 100 kA ultimate short-circuit breaking capacity at 380–440 V AC.
- 85 kA ultimate short-circuit breaking capacity at 500–690 V AC.
- Advanced Ekip Touch LI electronic trip unit for adjustable overload and instantaneous short-circuit protection.
- Four-pole fixed configuration with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax 2 E4.2H series.
- 4000 A rated uninterrupted current (Iu).
- Four-pole configuration.
- Fixed mounting construction.
- Rear horizontal terminals (FHR).
- Ekip Touch LI solid-state electronic trip unit.
- LI protection for long-time overload and instantaneous short-circuit conditions.
- 690 V AC rated operational voltage.
- 100 kA Icu at 380–440 V AC.
- 85 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 E4.2H frame combines a 4000 A continuous-current rating with high fault interruption and short-time withstand capability for demanding industrial, commercial and infrastructure installations.
The Ekip Touch LI electronic trip unit provides adjustable long-time overload and instantaneous short-circuit protection through an intuitive touchscreen interface. Combined with the robust Emax 2 architecture, the 1SDA071844R1 provides dependable protection for main distribution switchboards, high-current feeders and electrical systems requiring high breaking capacity and configurable electronic protection.
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 | E4.2H |
| ABB order code | 1SDA071844R1 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 4000 A |
| Number of poles | 4 |
| Trip unit | Ekip Touch LI |
| Release type | Solid-state electronic |
| Protection functions | LI |
| Overload protection adjustment | 0.4–1 × In |
| Instantaneous protection adjustment | 1.5–15 × In |
| Integrated earth-fault protection | No |
| Rated operational voltage (Ue) | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V AC |
| Frequency | 50/60 Hz |
| Rated ultimate short-circuit breaking capacity (Icu) at 380 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 400/415 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 100 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500/525 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 690 V AC | 85 kA |
| Rated short-time withstand current (Icw), 1 s | 85 kA |
| Mounting version | Fixed |
| Terminal arrangement | Rear horizontal |
| Auxiliary contacts | 4 |
| Motor drive | Optional |
| Degree of protection | IP30 |
| Product net width | 510 mm |
| Product net height | 371 mm |
| Product net depth | 270 mm |
| EAN | 8015644756949 |
| Standard | IEC 60947-2 |
| Product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA071844R1 used for?
The ABB 1SDA071844R1 is a 4000 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 1SDA071844R1?
The circuit breaker is fitted with an Ekip Touch LI solid-state electronic trip unit for adjustable overload and instantaneous 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 1SDA071844R1?
The E4.2H circuit breaker has a rated uninterrupted current of 4000 A.
What is the breaking capacity of the ABB 1SDA071844R1?
The E4.2H 4000 configuration has a rated ultimate short-circuit breaking capacity of 100 kA at 380–440 V AC and 85 kA at 500–690 V AC.
Does the ABB 1SDA071844R1 include earth-fault protection?
No. This version uses an Ekip Touch LI trip unit, providing long-time overload and instantaneous short-circuit protection without an integrated G earth-fault protection function.
Is the ABB 1SDA071844R1 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 high current-carrying capability, robust fault interruption performance and advanced electronic protection for industrial, commercial and infrastructure power distribution systems.
