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1SDA055536R1 ABB E4S 4000A 4P PR121/P-LI Fixed Air Circuit Breaker
ABB 1SDA055536R1 is a SACE Emax E4S 4000 A four-pole fixed air circuit breaker with full-size neutral, rear horizontal terminals and a PR121/P-LI R4000 electronic overcurrent release.
£31,613.49
Why Choose the ABB E4S/f 4000 PR121/P-LI 1SDA055536R1 Circuit Breaker?
The ABB 1SDA055536R1 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 PR121/P-LI R4000 electronic overcurrent release.
This circuit breaker features a four-pole configuration with full-size neutral, a fixed installation design and rear horizontal terminals. The PR121/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.
Rated for a continuous current of 4000 A, the 1SDA055536R1 provides an ultimate short-circuit breaking capacity of 80 kA at 400 V AC. Four auxiliary contacts and open/closed circuit-breaker position indication support integration with switchboard control and signalling systems.
Key Advantages
- High-current 4000 A SACE Emax E4S air circuit breaker.
- Four-pole fixed configuration with full-size neutral.
- PR121/P-LI R4000 electronic trip unit for dependable overcurrent protection.
- LI protection functions provide long-time overload and instantaneous short-circuit protection.
- 80 kA ultimate short-circuit breaking capacity at 400 V AC.
- Rear horizontal terminals support practical busbar connection in switchboard assemblies.
- Four auxiliary contacts and open/closed position indication support control and signalling.
Key Features
- ABB SACE Emax E4S air circuit breaker.
- 4000 A rated uninterrupted current.
- Four-pole (4P) configuration.
- Full-size neutral.
- Fixed (F) installation.
- Rear horizontal (HR) terminals.
- PR121/P-LI R4000 electronic overcurrent release.
- LI protection: long-time and instantaneous.
- 80 kA ultimate short-circuit breaking capacity at 400 V AC.
- 1250–4000 A overload release setting range.
- 6000–60000 A instantaneous short-circuit release setting range.
- IP20 degree of protection.
High-Current Fixed Protection with PR121/P-LI
The ABB SACE Emax E4S platform is designed for demanding low-voltage distribution applications where high continuous current capability and dependable fault interruption are required. The fixed construction and rear horizontal terminals of the 1SDA055536R1 make it suitable for permanent installation within compatible switchboards and busbar systems.
The PR121/P-LI electronic release provides long-time protection against sustained overload conditions and instantaneous protection against severe short-circuit currents. Combined with the 4000 A E4S breaker platform, this provides effective protection 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 PR121/P-LI In=4000A 4p F HR |
| ABB order code | 1SDA055536R1 |
| Product type | Air circuit breaker |
| Frame / performance level | E4S |
| Rated uninterrupted current | 4000 A |
| Number of poles | 4P |
| Neutral | Full size |
| Version | Fixed |
| Terminal arrangement | Rear horizontal (HR) |
| Trip unit | PR121/P-LI R4000 |
| Release type | Electronic |
| Protection functions | Long-time and instantaneous (LI) |
| Ultimate short-circuit breaking capacity at 400 V, 50 Hz | 80 kA |
| Overload release setting range | 1250–4000 A |
| Instantaneous short-circuit release setting range | 6000–60000 A |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Degree of protection | IP20 |
| Motor operator | Optional |
| EAN | 8015644568764 |
| Product net weight | 128 kg |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA055536R1?
The ABB 1SDA055536R1 is a SACE Emax E4S 4000 A four-pole fixed air circuit breaker with full-size neutral, rear horizontal terminals and a PR121/P-LI R4000 electronic overcurrent release.
What is the rated current of the ABB 1SDA055536R1?
The circuit breaker has a rated uninterrupted current of 4000 A, making it suitable for high-current low-voltage distribution applications.
What protection does the PR121/P-LI trip unit provide?
The PR121/P-LI electronic trip unit provides long-time overload protection and instantaneous short-circuit protection.
What is the breaking capacity of the ABB 1SDA055536R1?
The E4S circuit breaker has an ultimate short-circuit breaking capacity of 80 kA at 400 V AC, 50 Hz.
Is the ABB 1SDA055536R1 fixed or withdrawable?
The 1SDA055536R1 is a fixed four-pole circuit breaker with a full-size neutral and rear horizontal terminals.
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.
