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1SDA125754R1 ABB E4.3V 2500 Ekip Aware LSI 4p W MP Air Circuit Breaker
ABB E4.3V 2500 Ekip Aware LSI 4p W MP SACE Emax 3 four-pole withdrawable air circuit breaker moving part rated at 2500 A with Ekip Aware LSI electronic protection and V-level high-breaking-capacity performance.
£15,224.04
Why Choose the ABB E4.3V 2500 Ekip Aware LSI 4p W MP Air Circuit Breaker?
The ABB E4.3V 2500 Ekip Aware LSI 4p W MP (1SDA125754R1) is a high-performance SACE Emax 3 air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Rated at 2500 A, this four-pole withdrawable breaker combines ABB's E4.3 frame with the V high-breaking-capacity performance level and an advanced Ekip Aware LSI electronic trip unit.
As part of the ABB SACE Emax 3 generation, the E4.3V 2500 is engineered for installations requiring high fault-interruption capability, intelligent electronic protection and convenient maintenance. The Ekip Aware LSI configuration provides long-time, short-time and instantaneous overcurrent protection, allowing coordinated protection across complex industrial and infrastructure distribution systems.
This model is supplied as a four-pole withdrawable moving part for integration with a compatible Emax 3 fixed part. Its protection system provides an overload adjustment range of 1000–2500 A, a short-time delayed short-circuit adjustment range of 1500–25000 A and an instantaneous short-circuit adjustment range of 3750–37500 A. The E4.3V platform also delivers an ultimate short-circuit breaking capacity of 150 kA at 400/440 V.
Key Advantages
- Next-generation ABB SACE Emax 3 air circuit breaker for demanding low-voltage distribution systems.
- 2500 A rated uninterrupted current for high-current industrial and infrastructure applications.
- Advanced Ekip Aware LSI electronic trip unit with long-time, short-time and instantaneous protection.
- Four-pole withdrawable moving-part construction for convenient servicing and replacement.
- 150 kA ultimate short-circuit breaking capacity at 400/440 V.
- 100 kA short-time withstand current for 1 second for demanding distribution networks.
Key Features
- ABB SACE Emax 3 E4.3V air circuit breaker.
- 2500 A rated uninterrupted current.
- Four-pole withdrawable moving-part configuration.
- Ekip Aware LSI electronic trip unit.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- 1000–2500 A overload protection setting range.
- 1500–25000 A short-time short-circuit setting range.
- 3750–37500 A instantaneous short-circuit setting range.
- V high-breaking-capacity performance level.
- 150 kA Icu at 400/440 V.
- 100 kA Icw for 1 second.
- Four auxiliary change-over contacts for signalling and control integration.
Intelligent Power Protection for Modern Electrical Systems
ABB SACE Emax 3 is a next-generation low-voltage air circuit breaker platform developed for resilient and intelligent electrical distribution. The range combines high short-circuit performance with advanced electronic protection and an upgradeable architecture, supporting demanding industrial, commercial and infrastructure power systems.
The Ekip Aware LSI electronic trip unit provides adjustable long-time, short-time and instantaneous protection. Combined with the E4.3V platform's high breaking performance, four-pole construction and withdrawable moving-part design, it provides a flexible protection solution for installations where selectivity, fault-current capability, maintainability and dependable power distribution are critical.
Typical Applications
- High-current industrial low-voltage power distribution systems.
- Data centres and critical power infrastructure.
- Manufacturing and process industry switchboards.
- Large commercial and building electrical distribution systems.
- Utility and infrastructure power installations.
- Four-pole withdrawable main and feeder protection switchboards.
Technical Specifications
| Series | SACE Emax 3 |
|---|---|
| Order code | 1SDA125754R1 |
| EAN / GTIN | 8056221263061 |
| Product type | Air circuit breaker moving part |
| Frame | E4.3 |
| Performance level | V |
| Rated uninterrupted current (Iu) | 2500 A |
| Rated voltage | 690 V |
| Number of poles | 4P |
| Mounting configuration | Withdrawable moving part |
| Trip unit | Ekip Aware LSI |
| Protection functions | LSI |
| Overload release setting | 1000–2500 A |
| Short-time delayed short-circuit release setting | 1500–25000 A |
| Instantaneous short-circuit release setting | 3750–37500 A |
| Ultimate short-circuit breaking capacity (Icu) at 400/440 V | 150 kA |
| Rated short-time withstand current (Icw), 1 s | 100 kA |
| Main circuit connection | Via separate chassis / fixed part |
| Auxiliary change-over contacts | 4 |
| Power loss | 743 W |
| Degree of protection | IP30 |
| Operating element | Push button |
| Optional motor operator | Yes |
Frequently Asked Questions
What is the ABB E4.3V 2500 Ekip Aware LSI 4p W MP used for?
This SACE Emax 3 air circuit breaker moving part is designed for switching and protecting high-current low-voltage power distribution systems in industrial, commercial and infrastructure applications.
What is the rated current of ABB 1SDA125754R1?
The ABB E4.3V 2500 Ekip Aware LSI 4p W MP has a rated uninterrupted current of 2500 A.
What protection functions does the Ekip Aware LSI trip unit provide?
The Ekip Aware LSI electronic trip unit provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection.
Is ABB 1SDA125754R1 fixed or withdrawable?
This model is a four-pole withdrawable moving part designed for integration with a compatible ABB SACE Emax 3 fixed part.
What are the protection setting ranges of ABB 1SDA125754R1?
The overload release is adjustable from 1000–2500 A, the short-time delayed short-circuit release from 1500–25000 A, and the instantaneous short-circuit release from 3750–37500 A.
Trusted by Industrial Power Engineers Worldwide
ABB SACE Emax 3 air circuit breakers combine advanced electronic protection, high short-circuit performance and serviceable withdrawable construction for demanding low-voltage electrical distribution systems.
