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1SDA125748R1 ABB Emax 3 E4.3V 2000 Ekip Aware LI 4-Pole Air Circuit Breaker
ABB 1SDA125748R1 is a SACE Emax 3 E4.3V 2000 A four-pole withdrawable air circuit breaker with an Ekip Aware LI electronic trip unit for low-voltage power distribution protection.
£11,460.32
Why Choose the ABB 1SDA125748R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125748R1 is a high-performance SACE Emax 3 E4.3V air circuit breaker designed for protection and control of demanding low-voltage electrical distribution systems. Configured as an E4.3V 2000 Ekip Aware LI 4p WMP, it combines a 2000 A rated current, four-pole construction and ABB's Ekip Aware electronic protection technology.
As part of the ABB SACE Emax 3 range, this breaker is engineered for high-current power distribution applications where dependable circuit protection, system monitoring and service flexibility are important. The Ekip Aware LI trip unit provides electronic long-time and instantaneous protection functions, helping protect electrical installations against overload and short-circuit conditions.
The 1SDA125748R1 is supplied in a four-pole withdrawable configuration. Its E4.3V performance class provides a high short-circuit breaking capability, with the E4.3V 2000 configuration rated at 150 kA Icu at 440 V and 100 kA Icw for 1 s, making it suitable for demanding industrial and infrastructure power-distribution systems.
Key Advantages
- High-performance ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 2000 A rated current for high-current electrical installations.
- Four-pole configuration for switching and protection of all four conductors.
- Ekip Aware LI electronic trip unit provides long-time and instantaneous protection functions.
- Withdrawable execution supports easier isolation, servicing and replacement within switchgear assemblies.
- E4.3V performance class designed for installations requiring high short-circuit interruption capability.
Key Features
- ABB SACE Emax 3 E4.3V air circuit breaker.
- 2000 A rated current.
- 4-pole construction.
- Ekip Aware LI electronic protection release.
- Long-time and instantaneous protection functions.
- Withdrawable moving-part configuration (WMP).
- 150 kA ultimate short-circuit breaking capacity (Icu) at 440 V.
- 100 kA short-time withstand current (Icw) for 1 s.
- Designed for low-voltage industrial and infrastructure power distribution.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax 3 provide switching, isolation and protection for high-current low-voltage distribution circuits. By detecting abnormal current conditions and interrupting the circuit when required, the breaker helps protect cables, busbars, switchgear and connected equipment from damage caused by overloads and short circuits.
The Ekip Aware LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the withdrawable E4.3 platform, this configuration is well suited to switchboards where high fault-current performance, maintainability and reliable electrical distribution are key design requirements.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Power distribution centres and switchgear assemblies.
- High-current feeder and incoming circuit protection.
Technical Specifications
| Series | SACE Emax 3 |
|---|---|
| Frame | E4.3 |
| ABB order code | 1SDA125748R1 |
| Product type | Air circuit breaker |
| Rated current | 2000 A |
| Number of poles | 4 |
| Performance class | V |
| Trip unit | Ekip Aware LI |
| Protection functions | Long-time (L) and instantaneous (I) |
| Execution | Withdrawable |
| Configuration | WMP / withdrawable moving part |
| Ultimate short-circuit breaking capacity (Icu) at 440 V | 150 kA |
| Short-time withstand current (Icw), 1 s | 100 kA |
| Product group | Emax 3 |
| EAN | 8056221263009 |
Frequently Asked Questions
What is the ABB 1SDA125748R1?
The ABB 1SDA125748R1 is a SACE Emax 3 E4.3V air circuit breaker with a 2000 A rated current, four poles, an Ekip Aware LI electronic trip unit and a withdrawable configuration.
What is the rated current of the ABB 1SDA125748R1?
The breaker has a rated current of 2000 A.
What protection functions does the Ekip Aware LI trip unit provide?
The Ekip Aware LI trip unit provides long-time (L) protection against overload conditions and instantaneous (I) protection against high short-circuit currents.
How many poles does the 1SDA125748R1 have?
The 1SDA125748R1 is a four-pole air circuit breaker.
Is the ABB 1SDA125748R1 fixed or withdrawable?
This model is supplied as a withdrawable moving-part configuration (WMP), allowing the breaker to be withdrawn from its switchgear installation for isolation and servicing.
What is the short-circuit performance of the E4.3V 2000?
The E4.3V 2000 configuration has an ultimate short-circuit breaking capacity (Icu) of 150 kA at 440 V and a short-time withstand current (Icw) of 100 kA for 1 s.
Trusted by Electrical Professionals Worldwide
ABB SACE Emax air circuit breakers are used in industrial, commercial and infrastructure power-distribution systems where dependable protection, high electrical performance and flexible switchgear integration are essential.
