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1SDA057539R1 ABB E3S-A 2500 PR122/P-LI 2500 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA057539R1 is a SACE Emax E3S-A 2500 A three-pole fixed air circuit breaker with rear horizontal terminals and an R2500 PR122/P-LI electronic overcurrent release providing long-time overload and instantaneous short-circuit protection.
£11,900.09
Why Choose the ABB 1SDA057539R1 E3S-A 2500 Air Circuit Breaker?
The ABB 1SDA057539R1 is a SACE Emax E3S-A air circuit breaker designed for switching and protection in demanding low-voltage electrical distribution systems. Identified as E3S-A 2500 PR122/P-LI In=2500A 3p F HR, this three-pole fixed circuit breaker combines a 2500 A rated current with the ABB PR122/P-LI electronic overcurrent release.
As part of the ABB SACE Emax / New Emax range, this E3S-A configuration features fixed installation with rear horizontal terminals. It is designed for integration into compatible low-voltage switchboards where a permanently installed high-current circuit breaker is required for incoming supplies, distribution feeders and other critical power circuits.
The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. This configuration incorporates an R2500 overcurrent release with a 37,500 A instantaneous release reference and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication.
Key Advantages
- ABB SACE Emax E3S-A construction for demanding low-voltage power distribution.
- 2500 A rated current for high-capacity industrial and commercial circuits.
- PR122/P-LI electronic overcurrent release for electronic circuit protection.
- LI functionality provides long-time overload and instantaneous short-circuit protection.
- Three-pole fixed configuration for permanent switchboard installations.
- Rear horizontal terminals provide a practical connection arrangement for compatible switchgear.
- R2500 overcurrent release matched to the 2500 A rated current.
- Four auxiliary contacts and open/closed indication support signalling and circuit-breaker status monitoring.
Key Features
- ABB SACE Emax E3S-A series.
- 2500 A rated current.
- Three-pole configuration.
- Fixed (F) installation.
- Rear horizontal (HR) terminals.
- PR122/P-LI electronic trip unit.
- R2500 overcurrent release.
- Long-time overload protection.
- Instantaneous short-circuit protection.
- 37,500 A instantaneous release reference.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
- UL configuration.
Reliable LI Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E3S-A provide switching, isolation and overcurrent protection for low-voltage electrical distribution systems. Electronic trip technology monitors circuit conditions and initiates interruption when configured protection thresholds are exceeded, helping safeguard conductors, switchgear and downstream electrical equipment.
The PR122/P-LI release combines long-time protection against sustained overload conditions with instantaneous protection against severe short circuits. Together with the fixed E3S-A construction and rear horizontal terminals, the 1SDA057539R1 provides a practical solution for high-current distribution networks requiring dependable electronic protection and permanent switchboard installation.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial incoming and feeder circuits.
- Manufacturing and process facilities.
- Commercial building electrical distribution.
- Infrastructure power systems.
- Transformer secondary distribution circuits.
- Generator distribution circuits.
- High-current distribution feeders.
- Fixed switchgear requiring electronic LI protection.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB product group | 310513-New Emax |
| Order code / Product ID | 1SDA057539R1 |
| Product type | Air circuit breaker |
| Frame | E3S-A |
| Rated current | 2500 A |
| Number of poles | 3 |
| Installation | Fixed |
| Terminal connection | Rear horizontal |
| Trip unit | PR122/P-LI |
| Overcurrent release | R2500 |
| Protection functions | Long-time and instantaneous (LI) |
| Instantaneous release reference | 37,500 A |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Configuration | UL |
| Weight | 60 kg |
| EAN | 8015644598020 |
| Customs tariff / HS code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA057539R1 used for?
The ABB 1SDA057539R1 is a SACE Emax E3S-A air circuit breaker used for switching and protecting high-current low-voltage electrical distribution circuits.
What is the rated current of the ABB 1SDA057539R1?
The ABB 1SDA057539R1 has a rated current of 2500 A and incorporates an R2500 overcurrent release.
Which trip unit is fitted to the ABB 1SDA057539R1?
The 1SDA057539R1 is fitted with an ABB PR122/P-LI electronic overcurrent release.
What protection functions does the PR122/P-LI provide?
The PR122/P-LI provides long-time overload and instantaneous short-circuit protection functions.
Is the ABB 1SDA057539R1 fixed or withdrawable?
The 1SDA057539R1 is a three-pole fixed air circuit breaker with rear horizontal terminals for integration into compatible ABB SACE Emax switchgear and low-voltage distribution assemblies.
Trusted Circuit Protection from ABB
ABB SACE Emax air circuit breakers provide dependable switching and electronic overcurrent protection for demanding low-voltage electrical distribution systems, combining high-current capability with robust construction and electronic protection for critical power applications.
