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1SDA056291R1 ABB E3S2500 PR122/P-LI 2500A 3-Pole Withdrawable Air Circuit Breaker
ABB 1SDA056291R1 is a SACE Emax E3S2500 three-pole withdrawable air circuit breaker moving part rated at 2500 A with a PR122/P-LI electronic overcurrent release for high-current low-voltage circuit protection.
£15,051.29
Why Choose the ABB E3S2500 PR122/P-LI 2500A 3-Pole Air Circuit Breaker?
The ABB E3S2500 PR122/P-LI, order code 1SDA056291R1, is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for switching and protection in high-current low-voltage electrical distribution systems. As part of the ABB SACE Emax E3 series, this three-pole withdrawable breaker combines a 2500 A rated uninterrupted current with the PR122/P-LI electronic overcurrent release.
The PR122/P-LI trip unit provides long-time overload and instantaneous short-circuit protection. This LI configuration helps protect electrical distribution equipment against sustained overloads and severe short-circuit faults, while the electronic release provides dependable protection for demanding industrial, commercial and infrastructure power distribution applications.
With a 2500 A rated current, three-pole configuration and withdrawable moving-part construction, the E3S2500 is suitable for main switchboards and high-current distribution systems where maintainability is important. The E3S performance level provides rated ultimate and service short-circuit breaking capacities of 75 kA at 415 V AC, together with short-time withstand ratings of 75 kA for 1 s and 65 kA for 3 s.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
- 2500 A rated uninterrupted current for demanding high-current installations.
- Three-pole configuration for three-phase electrical distribution systems.
- Advanced PR122/P-LI electronic overcurrent release.
- Long-time overload and instantaneous short-circuit protection.
- 75 kA ultimate and service short-circuit breaking capacity at 415 V AC.
- High short-time withstand capability supports demanding power distribution applications.
- Withdrawable construction facilitates inspection, servicing and replacement.
Key Features
- ABB SACE Emax E3S2500 air circuit breaker moving part.
- 2500 A rated uninterrupted current.
- Three-pole (3P) configuration.
- PR122/P-LI electronic overcurrent release.
- Long-time overload protection (L).
- Instantaneous short-circuit protection (I).
- Withdrawable (W) execution.
- Moving part (MP) for the withdrawable SACE Emax system.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 75 kA rated ultimate short-circuit breaking capacity at 415 V AC.
- 75 kA rated service short-circuit breaking capacity at 415 V AC.
- 75 kA rated short-time withstand current for 1 s.
- 65 kA rated short-time withstand current for 3 s.
Reliable Circuit Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3S2500 provide switching, isolation and overcurrent protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical current and initiates circuit-breaker operation when configured protection thresholds are exceeded, helping protect cables, switchgear and connected equipment from damaging electrical faults.
The PR122/P-LI release provides two fundamental levels of overcurrent protection. Long-time protection responds to sustained overload conditions, while instantaneous protection provides rapid interruption of severe short-circuit currents. Combined with the withdrawable Emax construction, this configuration provides high fault-breaking performance while supporting convenient maintenance and replacement in critical distribution systems.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical installations.
- Manufacturing and process facilities.
- High-current incomer and feeder protection.
- Transformer and generator distribution systems.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056291R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Frame / performance level | E3S |
| Rated current | 2500 A |
| Rated uninterrupted current | 2500 A |
| Rated operational current | 2500 A |
| Number of poles | 3 |
| Execution | Withdrawable |
| Component | Moving part (MP) |
| Trip unit | PR122/P-LI |
| Release type | Electronic |
| Protection functions | LI |
| Long-time protection | L |
| Instantaneous protection | I |
| Current type | AC |
| Rated operational voltage | 690 V AC |
| Rated voltage | 690 V |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Rated ultimate short-circuit breaking capacity at 220 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 230 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 380 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 400 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 415 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 440 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 500 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 660 V AC | 75 kA |
| Rated ultimate short-circuit breaking capacity at 690 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 220 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 230 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 380 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 400 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 415 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 440 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 500 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 660 V AC | 75 kA |
| Rated service short-circuit breaking capacity at 690 V AC | 75 kA |
| Rated short-time withstand current (1 s) | 75 kA |
| Rated short-time withstand current (3 s) | 65 kA |
| Short-circuit performance level | S |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA056291R1 used for?
The ABB 1SDA056291R1 is a SACE Emax E3S2500 air circuit breaker moving part designed for switching and protecting high-current low-voltage electrical distribution circuits.
What is the rated current of the ABB E3S2500 PR122/P-LI?
The E3S2500 has a rated uninterrupted current of 2500 A.
What protection functions does the PR122/P-LI trip unit provide?
The PR122/P-LI electronic overcurrent release provides long-time overload (L) and instantaneous short-circuit (I) protection.
What is the breaking capacity of the ABB E3S2500?
The E3S2500 has rated ultimate and service short-circuit breaking capacities of 75 kA at 415 V AC, with short-time withstand ratings of 75 kA for 1 s and 65 kA for 3 s.
Is the ABB 1SDA056291R1 fixed or withdrawable?
The 1SDA056291R1 is a withdrawable three-pole circuit breaker moving part, allowing it to be withdrawn from its associated fixed part for inspection, servicing or replacement.
Trusted for Critical Power Distribution
ABB SACE Emax air circuit breakers are designed for dependable protection and control of low-voltage electrical distribution systems, combining high-current switching capability with electronic overcurrent protection for demanding industrial, commercial and infrastructure applications.
