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1SDA057787R1 ABB E3V-A 2500 PR121/P-LSI 2500 A 3-Pole Air Circuit Breaker
ABB 1SDA057787R1 E3V-A 2500 three-pole fixed SACE Emax air circuit breaker rated at 2500 A with rear horizontal terminals and a PR121/P-LSI electronic overcurrent release for low-voltage circuit protection.
£16,047.92
Why Choose the ABB E3V-A 2500 PR121/P-LSI Air Circuit Breaker?
The ABB E3V-A 2500 PR121/P-LSI, order code 1SDA057787R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB SACE Emax E3 series, this three-pole fixed circuit breaker combines a 2500 A rated current with the PR121/P-LSI electronic overcurrent release.
The PR121/P-LSI trip unit provides comprehensive long-time, short-time and instantaneous protection, helping protect electrical installations against overload and short-circuit conditions. Its electronic protection functionality and robust Emax construction make the E3V-A suitable for industrial, commercial and infrastructure power distribution applications requiring dependable high-current circuit protection.
With a rated current of 2500 A, a three-pole fixed configuration and rear horizontal terminals, the 1SDA057787R1 is designed for integration into compatible low-voltage switchboards. The circuit breaker is fitted with four auxiliary contacts and open/closed position indication for integration with electrical control and monitoring systems.
Key Advantages
- Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 2500 A rated current for demanding high-current applications.
- Advanced PR121/P-LSI electronic overcurrent release.
- LSI protection provides long-time, short-time and instantaneous protection.
- Three-pole fixed configuration for three-phase electrical distribution systems.
- Rear horizontal terminals for switchboard connection.
- Four auxiliary contacts support status signalling and control integration.
- Open/closed position indication provides clear circuit-breaker status information.
Key Features
- ABB SACE Emax E3V-A series.
- 2500 A rated current.
- Three-pole configuration.
- Fixed circuit-breaker version.
- PR121/P-LSI electronic overcurrent release.
- R2500 rating plug.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- 37,500 A instantaneous protection setting designation.
- Rear horizontal terminals.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
- UL configuration for low-voltage power distribution applications.
Reliable Circuit Protection for Power Distribution
Air circuit breakers such as the ABB SACE Emax E3V-A provide switching and overcurrent protection for high-current low-voltage distribution circuits. They are designed for use within electrical switchboards and distribution assemblies where dependable interruption of overload and short-circuit currents is essential for protecting equipment and maintaining electrical system safety.
The PR121/P-LSI electronic release combines long-time, short-time and instantaneous protection functions. Long-time protection responds to sustained overload conditions, while short-time and instantaneous functions provide protection against short circuits. This combination enables the E3V-A 2500 to provide effective protection for demanding industrial and commercial electrical distribution systems.
Typical Applications
- Main low-voltage electrical switchboards.
- Industrial power distribution systems.
- Manufacturing and process facilities.
- Commercial building electrical infrastructure.
- Power generation and utility distribution equipment.
- Motor control centres and plant distribution systems.
- High-current feeders requiring electronic LSI protection.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA057787R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated current | 2500 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSI |
| Rating plug | R2500 |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Instantaneous protection designation | Im 37,500 A |
| Construction | Fixed |
| Terminal orientation | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Standards configuration | UL |
| Weight | approx. 60 kg |
| EAN | 8015644600501 |
| Customs tariff number | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA057787R1 used for?
The ABB 1SDA057787R1 is a SACE Emax E3V-A air circuit breaker designed for switching and protecting high-current low-voltage electrical distribution circuits in industrial, commercial and infrastructure applications.
What is the rated current of the ABB E3V-A 2500?
This model has a rated current of 2500 A and uses a three-pole configuration for three-phase electrical distribution applications.
What protection does the PR121/P-LSI trip unit provide?
The PR121/P-LSI electronic overcurrent release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, collectively referred to as LSI protection.
Is the ABB 1SDA057787R1 fixed or withdrawable?
The 1SDA057787R1 is a fixed three-pole circuit breaker fitted with rear horizontal terminals for integration into compatible low-voltage switchboard assemblies.
What connections and auxiliary features are included?
The circuit breaker uses rear horizontal terminals and is fitted with four auxiliary contacts together with open/closed circuit-breaker position indication.
Trusted Circuit Protection from ABB
ABB SACE Emax air circuit breakers are designed to deliver dependable switching and electronic overcurrent protection in demanding low-voltage power distribution systems, supporting reliable operation across industrial, commercial and infrastructure installations.
