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1SDA058587R1 ABB E1N 1250 PR122/P-LSI Rc 1250 A 4-Pole Air Circuit Breaker
ABB 1SDA058587R1 is a SACE Emax E1N 1250 A four-pole air circuit breaker with a PR122/P-LSI electronic release providing LSI overcurrent protection and Rc residual-current protection.
£11,058.08
Why Choose the ABB 1SDA058587R1 E1N 1250 Air Circuit Breaker?
The ABB 1SDA058587R1 is a SACE Emax E1N 1250 air circuit breaker designed for protection and switching in low-voltage power distribution systems. This four-pole breaker has a rated current of 1250 A and incorporates an ABB PR122/P-LSI electronic overcurrent release for long-time, short-time and instantaneous protection.
As part of the ABB SACE Emax family, the E1N combines high-current switching capability with electronic protection for industrial and commercial distribution systems. The PR122/P platform provides configurable protection functions that support selective coordination and dependable protection of feeders, switchboards and major electrical loads.
This configuration features four poles and an In=1250 A PR122/P-LSI release. The product designation also identifies the Rc residual-current protection function, extending the protection capabilities of the breaker for applications requiring residual-current monitoring and protection alongside conventional overcurrent functions.
Key Advantages
- Heavy-duty ABB SACE Emax E1N air circuit breaker for low-voltage distribution.
- 1250 A rated current for high-current electrical circuits.
- Four-pole configuration suitable for systems requiring switched neutral capability.
- PR122/P-LSI electronic release provides long-time, short-time and instantaneous protection.
- Rc residual-current protection extends protection beyond conventional overcurrent functions.
- Designed for integration into industrial and commercial low-voltage switchgear.
Key Features
- ABB SACE Emax E1N 1250 circuit-breaker platform.
- 1250 A rated current.
- 4-pole construction.
- PR122/P-LSI electronic overcurrent release.
- LSI protection functions: long-time, short-time and instantaneous.
- Rc residual-current protection function.
- Electronic protection designed for configurable low-voltage distribution applications.
- Suitable for main and feeder protection in high-current switchboards.
Comprehensive Protection for Low-Voltage Distribution
Air circuit breakers such as the ABB SACE Emax E1N protect high-current low-voltage circuits against overload and short-circuit conditions while providing dependable switching and isolation within distribution assemblies. The PR122/P-LSI electronic release provides long-time overload, short-time selective and instantaneous protection to support coordinated protection strategies.
The Rc functionality adds residual-current protection to this E1N configuration, helping detect residual currents that may require protective intervention. Combined with the four-pole architecture and 1250 A current rating, this makes the 1SDA058587R1 suitable for demanding power distribution installations requiring comprehensive electronic protection.
Typical Applications
- Industrial low-voltage switchboards.
- Main incoming circuit protection.
- High-current feeder protection.
- Four-pole power distribution systems.
- Manufacturing plant electrical distribution.
- Commercial and infrastructure switchgear installations.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA058587R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame / performance level | E1N |
| Rated current (In) | 1250 A |
| Number of poles | 4 |
| Trip unit | PR122/P-LSI |
| Release type | Electronic overcurrent release |
| Overcurrent protection functions | Long-time, short-time and instantaneous (LSI) |
| Additional protection | Rc residual-current protection |
Frequently Asked Questions
What is the ABB 1SDA058587R1?
The ABB 1SDA058587R1 is a SACE Emax E1N 1250 four-pole air circuit breaker with a PR122/P-LSI electronic release and Rc residual-current protection.
What is the rated current of the ABB 1SDA058587R1?
The breaker is configured with a rated current of 1250 A.
Which trip unit is fitted to this E1N 1250 circuit breaker?
It is fitted with an ABB PR122/P-LSI electronic overcurrent release.
What protection functions does the PR122/P-LSI provide?
The release provides long-time, short-time and instantaneous protection, collectively identified as LSI protection.
What does Rc mean on the ABB 1SDA058587R1?
Rc identifies residual-current protection functionality, supplementing the breaker's LSI overcurrent protection for applications requiring residual-current detection and protection.
How many poles does the ABB 1SDA058587R1 have?
The 1SDA058587R1 is a four-pole E1N circuit breaker, making it suitable for low-voltage distribution systems requiring a four-pole switching arrangement.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are used in demanding low-voltage power distribution systems to provide dependable switching and electronic protection for industrial, commercial and infrastructure electrical installations.
