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1SDA072579R1 ABB E4.2V 4000 Ekip Hi-Touch LSIG 3P WMP Air Circuit Breaker
ABB 1SDA072579R1 SACE Emax 2 E4.2V 4000 A three-pole withdrawable air circuit breaker moving part with an Ekip Hi-Touch LSIG electronic trip unit for advanced protection, measurement and monitoring of high-current low-voltage AC distribution systems.
£25,360.88
Why Choose the ABB 1SDA072579R1 E4.2V 4000 Ekip Hi-Touch LSIG Air Circuit Breaker?
The ABB 1SDA072579R1 is a high-performance SACE Emax 2 E4.2V 4000 air circuit breaker moving part engineered for advanced protection, measurement and management of demanding low-voltage AC power distribution systems. Configured as an E4.2V 4000 Ekip Hi-Touch LSIG 3p WMP, it combines a 4000 A rated current, three-pole construction and ABB's advanced Ekip Hi-Touch electronic trip unit with comprehensive LSIG protection.
The E4.2V represents a high short-circuit performance level within the ABB SACE Emax 2 range. This 4000 A configuration provides an ultimate short-circuit breaking capacity of up to 150 kA at lower distribution voltages and 100 kA at 690 V AC, making it suitable for installations with exceptionally high prospective fault currents.
The Ekip Hi-Touch LSIG trip unit combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection with advanced measurement and monitoring capabilities. Its three-pole withdrawable moving-part (WMP) construction is designed for use with the appropriate Emax 2 fixed part, providing a maintainable solution for critical switchboards and high-availability power distribution systems.
Key Advantages
- High-performance ABB SACE Emax 2 E4.2V air circuit breaker moving part.
- 4000 A rated current for major low-voltage distribution circuits.
- Ekip Hi-Touch LSIG provides advanced protection, measurement and monitoring functionality.
- LSIG functions provide overload, short-time, instantaneous and earth-fault protection.
- Ultimate short-circuit breaking capacity reaches 150 kA for exceptionally demanding fault levels.
- 100 kA breaking capacity at 690 V AC supports high-performance distribution at elevated AC voltages.
- Advanced electronic protection supports selective coordination across complex distribution networks.
- Withdrawable construction supports isolation, inspection, maintenance and replacement of the breaker moving part.
- Suitable for integration with automation and energy-management architectures using compatible Emax 2 accessories and communication modules.
Key Features
- ABB SACE Emax 2 E4.2 frame.
- V high short-circuit performance level.
- 4000 A rated current.
- Three-pole construction.
- Ekip Hi-Touch LSIG electronic trip unit.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Earth-fault (G) protection.
- Advanced electrical measurement and monitoring functionality.
- Touchscreen interface for protection configuration and operating information.
- 150 kA maximum ultimate short-circuit breaking capacity.
- 100 kA ultimate breaking capacity at 690 V AC.
- Withdrawable moving-part (WMP) execution.
- Designed for integration into ABB Emax 2 power distribution, automation and energy-management systems.
Advanced Protection and Power Management for Critical Distribution
The ABB Emax 2 E4.2V platform is designed for high-current electrical systems where both exceptional fault interruption performance and sophisticated electronic protection are required. With a 4000 A current rating and ultimate short-circuit breaking capacity reaching 150 kA, the 1SDA072579R1 is particularly suited to main distribution positions exposed to very high prospective short-circuit currents.
The Ekip Hi-Touch LSIG trip unit extends protection beyond basic circuit interruption by combining configurable LSIG functions with advanced measurement and monitoring capabilities. Long-time protection responds to sustained overloads, short-time protection assists selective coordination, instantaneous protection rapidly clears severe short circuits and earth-fault protection detects potentially damaging current paths to earth. Compatible Emax 2 communication and connectivity options allow the breaker platform to form part of wider automation and energy-management systems.
Typical Applications
- Main incoming protection in high-current low-voltage switchboards.
- Industrial plants with high prospective short-circuit currents.
- Transformer secondary and high-current feeder protection.
- Data centres and critical-power distribution systems.
- Large commercial and infrastructure electrical distribution.
- Manufacturing and process-industry switchgear.
- Utility and energy distribution installations.
- Automation-enabled electrical distribution systems.
- Energy-management and power-monitoring applications.
- Withdrawable switchboards requiring advanced LSIG protection.
Technical Specifications
| Series | SACE Emax 2 |
|---|---|
| Frame | E4.2 |
| Performance level | V |
| Model / configuration | E4.2V 4000 Ekip Hi-Touch LSIG 3p WMP |
| ABB order code | 1SDA072579R1 |
| Product type | Air circuit breaker moving part |
| Current type | AC |
| Rated current | 4000 A |
| Rated voltage | 690 V AC |
| Number of poles | 3 |
| Trip unit | Ekip Hi-Touch LSIG |
| Trip unit type | Advanced electronic |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Long-time protection | L |
| Short-time protection | S |
| Instantaneous protection | I |
| Earth-fault protection | G |
| 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 |
| Maximum breaking capacity | 150 kA |
| Product width | 425 mm |
| Product height | 425 mm |
| Execution | Withdrawable moving part (WMP) |
| Fixed part | Separate matching Emax 2 fixed part required |
| Standard / approvals | IEC |
| Product group | Emax2 Air Circuit Breaker |
Frequently Asked Questions
What is the ABB 1SDA072579R1?
The ABB 1SDA072579R1 is a SACE Emax 2 E4.2V 4000 three-pole withdrawable air circuit breaker moving part equipped with an advanced Ekip Hi-Touch LSIG electronic trip unit.
What is the rated current of the ABB 1SDA072579R1?
The breaker has a rated current of 4000 A, making it suitable for major high-current low-voltage AC distribution circuits.
What protection functions does the Ekip Hi-Touch LSIG trip unit provide?
The LSIG configuration provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, while the Hi-Touch platform also provides advanced measurement and monitoring functionality.
What is the breaking capacity of the E4.2V 4000?
The E4.2V 4000 provides an ultimate short-circuit breaking capacity of up to 150 kA at 400–440 V AC and 100 kA at 690 V AC, making it suitable for electrical systems with very high prospective fault currents.
What does WMP mean on the ABB E4.2V 4000?
WMP identifies the withdrawable moving-part execution. The breaker moving part is designed for installation with the appropriate Emax 2 fixed part, allowing it to be withdrawn for isolation, inspection, maintenance or replacement.
Advanced Protection for Critical High-Current Power Systems
ABB SACE Emax 2 air circuit breakers combine exceptional short-circuit performance, advanced electronic protection, measurement capabilities and flexible withdrawable architecture for critical low-voltage power distribution in demanding industrial, commercial and infrastructure systems.
