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1SDA125522R1 ABB E4.3V 4000 Ekip Aware LSI 3-Pole Withdrawable Air Circuit Breaker
ABB 1SDA125522R1 is a three-pole 4000 A SACE Emax 3 E4.3V withdrawable air circuit breaker moving part with an Ekip Aware LSI electronic trip unit for high-performance low-voltage power distribution protection.
£21,468.70
Why Choose the ABB 1SDA125522R1 E4.3V 4000 Ekip Aware LSI Air Circuit Breaker?
The ABB 1SDA125522R1, designated E4.3V 4000 Ekip Aware LSI 3p WMP, is a high-performance SACE Emax 3 air circuit breaker moving part designed for protection, switching and isolation in demanding low-voltage power distribution systems. This E4.3V configuration combines a 4000 A rated current with an Ekip Aware electronic trip unit and comprehensive LSI protection functions.
Designed for industrial, commercial and infrastructure power-distribution applications, the E4.3V 4000 provides electronic protection against overload, delayed short-circuit and instantaneous short-circuit conditions. Its V performance level delivers very high fault-interruption capability, making this breaker particularly suitable for installations with substantial prospective short-circuit currents.
This configuration is a three-pole withdrawable moving part for use with the appropriate Emax 3 fixed part. The E4.3V platform provides an ultimate short-circuit breaking capacity of 150 kA at 440 V AC and a short-time withstand current of 100 kA for 1 s, supporting demanding main-distribution and high-current feeder applications.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 4000 A rated current for demanding high-current applications.
- Ekip Aware electronic trip unit for intelligent circuit protection.
- LSI protection functions provide long-time, short-time and instantaneous overcurrent protection.
- V performance level provides very high short-circuit interruption capability.
- 150 kA ultimate breaking capacity at 440 V AC.
- 100 kA short-time withstand current for 1 s.
- Withdrawable moving-part construction supports convenient isolation and maintenance.
Key Features
- ABB Emax 3 E4.3 platform.
- 4000 A rated current.
- V performance level.
- Three-pole breaker configuration.
- Ekip Aware electronic trip unit.
- LSI protection functions: long-time, short-time and instantaneous.
- Withdrawable moving part (WMP).
- 150 kA Icu at 440 V AC.
- 100 kA Icw for 1 s.
- Designed for high-current main and feeder protection in low-voltage switchgear.
High-Performance Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax 3 provide switching, isolation and protection for high-current low-voltage distribution circuits. The E4.3V platform combines substantial continuous-current capability with very high short-circuit performance, making it suitable for critical switchboards and distribution systems where robust fault interruption is essential.
The Ekip Aware LSI trip unit provides long-time protection against sustained overloads, short-time protection for selective fault coordination and instantaneous protection against severe short circuits. Combined with the withdrawable E4.3V moving-part construction, these functions make the 1SDA125522R1 well suited to modern switchboards requiring dependable 4000 A protection and convenient breaker isolation for maintenance.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial high-current power distribution systems.
- Commercial and infrastructure electrical installations.
- Main incomer and high-current feeder protection.
- Power systems with high prospective short-circuit currents.
- Manufacturing and process-industry switchgear.
Technical Specifications
| Product group | Emax 3 |
|---|---|
| Series | SACE Emax 3 E4.3 |
| ABB order code | 1SDA125522R1 |
| Product type | Air circuit breaker moving part |
| Breaker frame | E4.3 |
| Performance level | V |
| Rated current | 4000 A |
| Number of poles | 3 |
| Trip unit | Ekip Aware |
| Protection functions | LSI |
| Long-time protection | L |
| Short-time protection | S |
| Instantaneous protection | I |
| Rated ultimate short-circuit breaking capacity (Icu) at 440 V AC | 150 kA |
| Rated short-time withstand current (Icw, 1 s) | 100 kA |
| Execution | Withdrawable moving part (WMP) |
| Application | Low-voltage power distribution and circuit protection |
| EAN | 8056221260749 |
Frequently Asked Questions
What is the ABB 1SDA125522R1 used for?
The ABB 1SDA125522R1 is an Emax 3 air circuit breaker moving part used for switching, isolation and electronic overcurrent protection in demanding high-current low-voltage distribution systems.
What is the rated current of the ABB E4.3V 4000?
This E4.3V configuration has a rated current of 4000 A.
Which trip unit is fitted to the ABB 1SDA125522R1?
The breaker is fitted with an Ekip Aware electronic trip unit with LSI protection functions.
What protection functions does LSI provide?
LSI provides long-time, short-time and instantaneous overcurrent protection, supporting overload protection, selective short-circuit coordination and rapid interruption of severe faults.
Is the ABB 1SDA125522R1 fixed or withdrawable?
The ABB 1SDA125522R1 is the three-pole withdrawable moving part (WMP) of the air circuit breaker, designed for use with the appropriate ABB SACE Emax 3 fixed part.
Trusted ABB Power Distribution Technology
ABB SACE Emax 3 air circuit breakers combine advanced electronic protection with robust switching technology and high fault-interruption performance to support reliable low-voltage power distribution in demanding electrical installations.
