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1SDA057927R1 ABB E4H-A 3600 PR122/P-LSI 3600 A 3-Pole Air Circuit Breaker
ABB 1SDA057927R1 E4H-A 3600 PR122/P-LSI is a 3600 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and electronic LSI overcurrent protection for high-current low-voltage distribution systems.
£25,911.91
Why Choose the ABB E4H-A 3600 PR122/P-LSI Air Circuit Breaker?
The ABB E4H-A 3600 PR122/P-LSI, order code 1SDA057927R1, is a high-performance three-pole air circuit breaker (ACB) from the ABB SACE Emax range, designed for protection and switching of high-current low-voltage electrical distribution systems. Rated at 3600 A, this E4H-A breaker combines robust switching performance with the advanced PR122/P-LSI electronic overcurrent release.
The PR122/P-LSI trip unit provides electronic long-time (L), short-time (S) and instantaneous (I) protection functions. These functions provide comprehensive protection against overload and short-circuit conditions while supporting selective coordination with other protective devices throughout an industrial power distribution system.
This configuration is a fixed three-pole circuit breaker with rear horizontal terminals. It is supplied with a PR122/P-LSI R3600 overcurrent release, four auxiliary contacts and open/closed position indication, providing a comprehensive solution for demanding switchboard and power-distribution applications.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for high-current power distribution.
- 3600 A rated current for large electrical loads and main incoming supplies.
- Three-pole configuration for three-phase electrical systems.
- Advanced PR122/P-LSI electronic overcurrent protection.
- Fixed construction with rear horizontal terminals for switchboard installation.
- Long-time, short-time and instantaneous protection functions for comprehensive circuit protection.
- Four auxiliary contacts support signalling and integration with control systems.
Key Features
- ABB SACE Emax E4H-A air circuit breaker.
- 3600 A rated current (In).
- Three-pole construction.
- PR122/P-LSI R3600 electronic overcurrent release.
- Long-time overload (L) protection.
- Short-time short-circuit (S) protection.
- Instantaneous short-circuit (I) protection.
- Fixed version for permanent switchboard installation.
- Rear horizontal terminals.
- Fitted with four auxiliary contacts.
- Integrated open/closed position indication.
- UL configuration for demanding low-voltage distribution applications.
Reliable Protection for High-Current Distribution Systems
Air circuit breakers such as the ABB E4H-A are designed to protect main incoming supplies, busbars and high-current distribution feeders against damaging overload and short-circuit conditions. Electronic trip technology continuously monitors the electrical load and commands the breaker to operate when configured protection thresholds are exceeded.
The PR122/P-LSI release provides adjustable electronic protection suitable for coordinated low-voltage distribution networks. Combined with the E4H-A frame, fixed construction and rear horizontal connections, this breaker is well suited to high-capacity switchboards serving industrial, commercial and infrastructure installations.
Typical Applications
- Main incoming protection in low-voltage switchboards.
- Industrial power distribution systems.
- High-current feeder and busbar protection.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Fixed low-voltage switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA057927R1 |
| Product type | Air circuit breaker |
| Frame | E4 |
| Performance class | E4H-A |
| Rated current (In) | 3600 A |
| Number of poles | 3 |
| Trip unit | PR122/P-LSI |
| Trip unit rating | R3600 |
| Protection functions | L, S, I |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Standard / configuration | UL |
| EAN | 8015644601904 |
| Weight | 81 kg |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA057927R1?
The ABB 1SDA057927R1 is an E4H-A 3600 three-pole fixed SACE Emax air circuit breaker equipped with a PR122/P-LSI R3600 electronic overcurrent release.
What is the rated current of this circuit breaker?
The E4H-A 3600 has a rated current of 3600 A, making it suitable for high-current low-voltage distribution systems.
What protection does the PR122/P-LSI trip unit provide?
The PR122/P-LSI electronic trip unit provides long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection.
Is the ABB 1SDA057927R1 fixed or withdrawable?
This model is a fixed circuit breaker and is equipped with rear horizontal terminals for connection within compatible switchgear assemblies.
What auxiliary features are included?
The breaker is fitted with four auxiliary contacts and open/closed position indication for signalling and integration with switchboard control systems.
Trusted High-Current Protection from ABB
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage distribution systems, combining high current capacity, advanced electronic protection and robust switchgear integration.
