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1SDA072550R1 ABB E4.2N 4000 Ekip G Hi-Touch LSIG 3p WMP Air Circuit Breaker
ABB 1SDA072550R1 SACE Emax 2 E4.2N 4000 A three-pole withdrawable air circuit breaker mobile part with Ekip G Hi-Touch LSIG protection and 66 kA short-circuit breaking capacity.
£20,259.47
Why Choose the ABB E4.2N 4000 Ekip G Hi-Touch LSIG 3p WMP Air Circuit Breaker?
The ABB 1SDA072550R1 is a high-performance SACE Emax 2 E4.2N air circuit breaker (ACB) designed for protection, control and management of demanding low-voltage electrical distribution and generator applications. Rated at 4000 A, this three-pole breaker combines the E4.2N frame with ABB’s advanced Ekip G Hi-Touch LSIG electronic trip unit for comprehensive protection, measurement and power-management functionality.
As part of the ABB SACE Emax 2 series, the E4.2N is engineered for high-current industrial switchboards, generator systems, infrastructure and critical power installations. The Ekip G Hi-Touch trip unit provides advanced long-time, short-time, instantaneous and earth-fault protection functions, with the generator-focused capabilities of ABB’s Ekip G platform and the advanced monitoring and connectivity features associated with Emax 2.
The 1SDA072550R1 is a three-pole withdrawable mobile part (WMP) with a rated uninterrupted current of 4000 A, rated operational voltage of 690 V and an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC. Its rated short-time withstand current is 66 kA for 1 second, making it suitable for high-power distribution systems where selectivity, reliability and maintainability are essential.
Key Advantages
- High-capacity 4000 A air circuit breaker for demanding LV power systems.
- 66 kA ultimate short-circuit breaking capacity for robust fault protection.
- Advanced Ekip G Hi-Touch LSIG electronic trip unit suitable for generator and distribution applications.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- Withdrawable mobile-part construction simplifies switchboard maintenance and servicing.
- Advanced measurement, monitoring and communication capabilities through the modular ABB Emax 2 platform.
Key Features
- ABB SACE Emax 2 E4.2N series.
- 4000 A rated uninterrupted current.
- Three-pole configuration.
- 690 V rated operational voltage.
- 66 kA ultimate short-circuit breaking capacity.
- 66 kA short-time withstand current for 1 second.
- Advanced Ekip G Hi-Touch LSIG electronic trip unit.
- LSIG protection covering overload, selective short circuit, instantaneous short circuit and earth fault.
- 1600–4000 A overload protection adjustment range.
- Withdrawable mobile part (WMP) configuration for switchboard applications.
- Designed for integration with ABB Emax 2 monitoring, communication and energy-management solutions.
Advanced Generator and Power Distribution Protection
Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage systems against overloads, short circuits and earth faults. The E4.2N frame combines a 4000 A current rating with high short-circuit performance, making it suitable for main distribution boards, generator installations and other applications where continuity of supply and selective protection are important.
The Ekip G Hi-Touch electronic trip unit provides sophisticated protection, measurement and monitoring functions for demanding power-generation and distribution applications. Combined with the modular Emax 2 architecture, it supports integration with automation, supervision and energy-management systems while providing detailed electrical information for system operation and diagnostics.
Typical Applications
- Generator protection and generator switchboards.
- Main incoming protection for low-voltage switchboards.
- Industrial power distribution systems.
- Critical power and standby generation systems.
- Large commercial and infrastructure installations.
- Data centres and high-availability electrical distribution.
- Manufacturing plants and process facilities.
- Intelligent switchgear and energy-management systems.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E4.2 |
| Order code / SKU | 1SDA072550R1 |
| EAN | 8015644764005 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 4000 A |
| Rated operational voltage | 690 V |
| Number of poles | 3 |
| Performance level | N |
| Trip unit | Ekip G Hi-Touch |
| Protection functions | LSIG |
| Overload release adjustment range | 1600–4000 A |
| Short-time short-circuit release adjustment range | 2400–40000 A |
| Instantaneous short-circuit release adjustment range | 6000–60000 A |
| Ultimate short-circuit breaking capacity (Icu) at 400–440 V AC | 66 kA |
| Rated short-time withstand current (Icw, 1 s) | 66 kA |
| Earth-fault protection | Integrated |
| Execution | Withdrawable mobile part |
| Main circuit connection | Connection through separate fixed part |
| Protection rating | IP30 |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA072550R1?
The ABB 1SDA072550R1 is a three-pole SACE Emax 2 E4.2N withdrawable air circuit breaker mobile part rated at 4000 A and equipped with an advanced Ekip G Hi-Touch LSIG electronic trip unit.
What is the current rating of the ABB E4.2N 1SDA072550R1?
The breaker has a rated uninterrupted current of 4000 A, with an overload protection adjustment range of 1600–4000 A.
What is the breaking capacity of this Emax 2 circuit breaker?
The E4.2N has an ultimate short-circuit breaking capacity of 66 kA at 400–440 V AC and a rated short-time withstand current of 66 kA for 1 second.
What does Ekip G Hi-Touch LSIG provide?
The Ekip G Hi-Touch electronic trip unit provides advanced protection and monitoring functionality for generator and power-distribution applications, while LSIG provides long-time, short-time, instantaneous and earth-fault protection.
Is the ABB 1SDA072550R1 fixed or withdrawable?
The 1SDA072550R1 is a withdrawable mobile part designed for use with the appropriate Emax 2 fixed part, allowing the breaker to be withdrawn from the switchboard for isolation, inspection and maintenance.
Trusted for Generator and Critical Power Protection
ABB SACE Emax 2 air circuit breakers combine high breaking performance, advanced electronic protection and intelligent power-management capabilities for demanding generator, industrial and low-voltage distribution systems.
