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1SDA056479R1 ABB E3H2500 PR123/P-LSIG 2500A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA056479R1 is a SACE Emax E3H2500 2500 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR123/P-LSIG R2500 electronic overcurrent release providing long-time, short-time, instantaneous and earth-fault protection for low-voltage power distribution systems.
£27,582.99
Why Choose the ABB E3H2500 PR123/P-LSIG 2500A 4-Pole Air Circuit Breaker?
The ABB 1SDA056479R1 is a high-performance SACE Emax E3H air circuit breaker designed for protection and switching in high-current low-voltage electrical distribution systems. Rated at 2500 A, this four-pole fixed circuit breaker incorporates ABB’s advanced PR123/P-LSIG R2500 electronic overcurrent release for comprehensive protection of industrial, commercial and infrastructure power networks.
As part of the ABB SACE Emax range, the E3H2500 combines high short-circuit performance with sophisticated electronic protection. The PR123/P-LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection functions, helping safeguard electrical installations against overloads, short circuits and earth faults while supporting selective protection strategies.
The E3H2500 PR123/P-LSIG has a rated uninterrupted current of 2500 A and is supplied as a four-pole fixed circuit breaker with rear horizontal terminals. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, making it particularly suitable for high-current switchboards requiring four-pole switching, advanced electronic protection and robust fixed installation.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
- 2500 A rated current for high-current industrial and commercial installations.
- Four-pole construction for applications requiring switching of all four conductors.
- PR123/P-LSIG R2500 electronic overcurrent release for comprehensive circuit protection.
- LSIG protection provides long-time, short-time, instantaneous and earth-fault protection.
- Fixed construction with rear horizontal terminals for robust switchboard integration.
- Four auxiliary contacts provide circuit-breaker open/closed status indication.
Key Features
- ABB SACE Emax E3H2500 air circuit breaker.
- 2500 A rated uninterrupted current.
- Four-pole fixed configuration.
- PR123/P-LSIG R2500 electronic overcurrent release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- Rear horizontal main terminals.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
- Advanced PR123/P protection platform for demanding power distribution applications.
Advanced Four-Pole Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H2500 provide switching, isolation and protection for high-current low-voltage distribution circuits. The four-pole configuration enables simultaneous switching of three phase conductors and the neutral, making it suitable for electrical systems where complete four-pole isolation is required.
The PR123/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the robust fixed Emax construction and rear horizontal terminals, this makes the 1SDA056479R1 particularly suitable for main incomers, high-current feeders and other critical distribution circuits requiring comprehensive electronic protection.
Typical Applications
- Low-voltage main distribution switchboards.
- High-current industrial power distribution systems.
- Main incomer and feeder circuit protection.
- Three-phase systems requiring neutral switching.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Power distribution centres and fixed switchgear assemblies.
Technical Specifications
| Product group | 310513-New Emax |
|---|---|
| Series | SACE Emax |
| Extended product type | E3H2500PR123/P-LSIGIn=2500A4pFHR |
| Order code / MPN | 1SDA056479R1 |
| Product type | Air circuit breaker |
| Frame | E3H |
| Rated current | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Overcurrent release rating | R2500 |
| Number of poles | 4 |
| Execution | Fixed |
| Trip unit | PR123/P-LSIG electronic overcurrent release |
| Protection functions | Long-time, short-time, instantaneous and earth-fault (LSIG) |
| Main terminal arrangement | Rear horizontal |
| Overload release adjustment range | 1000–2500 A |
| Auxiliary contacts | 4 (2 normally open and 2 normally closed) |
| Position indication | Circuit breaker open/closed |
| Trip indication | Yes |
| EAN | 8015644578190 |
| HS code | 85362090 |
| Weight | 90 kg |
Frequently Asked Questions
What is the ABB 1SDA056479R1 used for?
The ABB 1SDA056479R1 is a SACE Emax E3H2500 air circuit breaker used for switching and protecting high-current low-voltage electrical distribution circuits, particularly applications requiring four-pole switching and comprehensive LSIG protection.
What is the rated current of the ABB E3H2500 1SDA056479R1?
The circuit breaker has a rated uninterrupted current of 2500 A and is equipped with a PR123/P-LSIG R2500 electronic overcurrent release.
What protection functions does the PR123/P-LSIG trip unit provide?
The PR123/P-LSIG electronic overcurrent release provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
How many poles does the ABB 1SDA056479R1 have?
The 1SDA056479R1 is a four-pole air circuit breaker, making it suitable for three-phase distribution systems where switching of the neutral conductor is also required.
Is the ABB 1SDA056479R1 fixed or withdrawable?
The 1SDA056479R1 is a four-pole fixed air circuit breaker with rear horizontal terminals for integration into compatible ABB SACE Emax low-voltage switchgear assemblies.
Trusted ABB Protection for Critical Power Systems
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power distribution systems, combining high-current performance with advanced electronic protection for industrial, commercial and infrastructure installations.
