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1SDA055539R1 ABB E4S 4000A 4P PR122/P-LI Fixed Air Circuit Breaker
ABB 1SDA055539R1 is a SACE Emax E4S 4000 A four-pole fixed air circuit breaker with full-size neutral, rear horizontal terminals and a PR122/P-LI R4000 electronic overcurrent release.
£31,696.09
Why Choose the ABB E4S/f 4000 PR122/P-LI 1SDA055539R1 Circuit Breaker?
The ABB 1SDA055539R1 is a SACE Emax E4S 4000 A four-pole fixed air circuit breaker designed for switching and protection in high-current low-voltage power distribution systems. It combines the E4S platform with an ABB PR122/P-LI R4000 electronic overcurrent release.
This circuit breaker features a four-pole configuration with full-size neutral, fixed construction and rear horizontal terminals. The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection, helping protect high-capacity distribution circuits against sustained overcurrents and severe short-circuit faults.
With a rated current of 4000 A, the 1SDA055539R1 is engineered for substantial incoming and feeder duties within industrial and commercial switchgear. Four auxiliary contacts provide open/closed circuit-breaker position indication for integration with control, monitoring and signalling systems.
Key Advantages
- High-current 4000 A SACE Emax E4S air circuit breaker.
- Four-pole fixed configuration with full-size neutral.
- PR122/P-LI R4000 electronic trip unit for electronic overcurrent protection.
- LI protection functions provide long-time overload and instantaneous short-circuit protection.
- Rear horizontal terminals support practical integration with switchboard busbar systems.
- Four auxiliary contacts provide circuit-breaker open/closed position signalling.
- Designed for demanding high-current low-voltage distribution applications.
Key Features
- ABB SACE Emax E4S air circuit breaker.
- 4000 A rated current.
- Four-pole (4P) configuration.
- Full-size neutral.
- Fixed (F) version.
- Rear horizontal (HR) terminal arrangement.
- PR122/P-LI R4000 electronic overcurrent release.
- LI protection: long-time and instantaneous.
- Four auxiliary circuit-breaker contacts.
- Open/closed position indication.
PR122/P-LI Protection for High-Current Fixed Distribution
The ABB SACE Emax E4S platform is designed for demanding low-voltage distribution applications where high continuous current capability and dependable circuit protection are required. The fixed construction and rear horizontal terminals of the 1SDA055539R1 make it suitable for permanent installation within compatible switchboards and busbar systems.
The PR122/P-LI electronic release provides long-time protection against sustained overload conditions together with instantaneous protection against severe short circuits. Combined with the 4000 A E4S breaker platform, it provides an effective protection solution for high-capacity incoming and feeder circuits.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- High-current incoming circuits.
- High-capacity feeder protection.
- Manufacturing and process plants.
- Commercial and infrastructure electrical systems.
- Transformer and generator distribution systems.
- Fixed power distribution and switchgear assemblies.
Technical Specifications
| Series | SACE Emax |
|---|---|
| Product designation | E4S/f 4000 PR122/P-LI In=4000A 4p F HR |
| ABB order code | 1SDA055539R1 |
| Product type | Air circuit breaker |
| Frame / performance level | E4S |
| Rated current | 4000 A |
| Number of poles | 4P |
| Neutral | Full size |
| Version | Fixed |
| Terminal arrangement | Rear horizontal (HR) |
| Trip unit | PR122/P-LI R4000 |
| Release type | Electronic |
| Protection functions | Long-time and instantaneous (LI) |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| EAN | 8015644568795 |
| Product net weight | 128 kg |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA055539R1?
The ABB 1SDA055539R1 is a SACE Emax E4S 4000 A four-pole fixed air circuit breaker with full-size neutral, rear horizontal terminals and a PR122/P-LI R4000 electronic overcurrent release.
What is the rated current of the ABB 1SDA055539R1?
The circuit breaker has a rated current of 4000 A, making it suitable for high-current low-voltage power distribution applications.
What protection does the PR122/P-LI trip unit provide?
The PR122/P-LI electronic trip unit provides long-time overload protection and instantaneous short-circuit protection.
Is the ABB 1SDA055539R1 fixed or withdrawable?
The 1SDA055539R1 is a fixed four-pole circuit breaker with a full-size neutral and rear horizontal terminals.
What auxiliary signalling is included with the ABB 1SDA055539R1?
The circuit breaker is equipped with four auxiliary contacts providing open/closed circuit-breaker position indication for signalling and control applications.
Trusted ABB Power Distribution Protection
ABB SACE Emax air circuit breakers provide purpose-designed switching and electronic protection for demanding low-voltage power distribution systems, supporting reliable integration into industrial, commercial and infrastructure switchgear.
