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1SDA056472R1 ABB E3H2500PR121/P-LI 2500 A 4-Pole Fixed Air Circuit Breaker
ABB E3H2500PR121/P-LI is a 2500 A four-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and a PR121/P-LI R2500 electronic overcurrent release providing long-time and instantaneous protection for high-current low-voltage power distribution systems.
£20,505.36
Why Choose the ABB E3H2500PR121/P-LI Air Circuit Breaker?
The ABB E3H2500PR121/P-LI is a high-performance four-pole air circuit breaker (ACB) designed for reliable protection, switching and isolation in demanding low-voltage electrical distribution systems. Part of the established ABB SACE Emax E3H series, this fixed circuit breaker combines a 2500 A rated current with the PR121/P-LI R2500 electronic overcurrent release.
The PR121/P-LI R2500 electronic trip unit provides long-time overload and instantaneous short-circuit protection. These LI protection functions help safeguard conductors, busbars, switchgear and connected equipment against sustained overcurrents and severe short circuits, making the breaker well suited to high-current distribution networks.
The ABB 1SDA056472R1 is specifically configured as a four-pole fixed E3H2500 circuit breaker with rear horizontal terminals. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, providing a robust solution for main switchboards, industrial distribution assemblies and other critical high-current installations.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker for demanding low-voltage distribution systems.
- 2500 A rated current for high-current electrical installations.
- Four-pole configuration for four-conductor switching and protection.
- PR121/P-LI R2500 electronic trip unit provides long-time and instantaneous protection.
- E3H high-breaking-capacity construction for installations with substantial prospective fault currents.
- Fixed construction with rear horizontal terminals for permanent switchboard installations.
- Four auxiliary contacts and open/closed position indication support monitoring and control integration.
Key Features
- ABB SACE Emax E3H series.
- 2500 A rated current.
- Four-pole circuit breaker configuration.
- PR121/P-LI R2500 electronic overcurrent release.
- LI protection functions: long-time overload and instantaneous short circuit.
- Fixed execution for permanent switchboard installation.
- Rear horizontal terminals for main-circuit connection.
- Four auxiliary contacts for status signalling.
- Circuit-breaker open/closed position indication.
- Designed for high-current industrial and commercial power distribution.
Reliable LI Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H provide protection, switching and isolation for major low-voltage distribution circuits. The E3H platform combines high fault-current interruption performance with electronic protection, making it suitable for main incomers, high-current feeders and other critical circuits within industrial, commercial and infrastructure electrical networks.
The PR121/P-LI R2500 release combines long-time protection against sustained overload conditions with instantaneous protection against severe short circuits. Together with the fixed four-pole construction and rear horizontal terminals, this provides a dependable solution for permanently installed high-current switchboard applications.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Main incomer and high-current feeder applications.
- Commercial and infrastructure electrical installations.
- Manufacturing plants and process facilities.
- Power distribution centres and electrical substations.
- Generator and transformer distribution systems.
Technical Specifications
| Series | SACE Emax E3H |
|---|---|
| Extended product type | E3H2500PR121/P-LIIn=2500A4pFH |
| ABB order code | 1SDA056472R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker (ACB) |
| Frame | E3H2500 |
| Rated current | 2500 A |
| Number of poles | 4 |
| Trip unit | PR121/P-LI R2500 |
| Release type | Electronic overcurrent release |
| Protection functions | Long-time and instantaneous (LI) |
| Mounting type | Fixed |
| Terminal arrangement | Rear horizontal terminals |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Weight | 90 kg |
| HS code | 85362090 |
| EAN | 8015644578121 |
Frequently Asked Questions
What is the ABB E3H2500PR121/P-LI 1SDA056472R1 used for?
This air circuit breaker is designed for protection, switching and isolation of high-current low-voltage distribution circuits in industrial, commercial and infrastructure installations.
What is the rated current of the ABB 1SDA056472R1?
The ABB 1SDA056472R1 E3H2500 air circuit breaker has a rated current of 2500 A.
What protection does the PR121/P-LI trip unit provide?
The PR121/P-LI R2500 electronic trip unit provides long-time overload and instantaneous short-circuit protection.
Is the ABB 1SDA056472R1 fixed or withdrawable?
The 1SDA056472R1 is a four-pole fixed air circuit breaker supplied with rear horizontal terminals.
Does the ABB E3H2500PR121/P-LI include auxiliary contacts?
Yes. This configuration is fitted with four auxiliary contacts and circuit-breaker open/closed position indication for monitoring and control applications.
Trusted by Electrical Professionals Worldwide
ABB SACE Emax air circuit breakers are widely used in industrial and commercial power distribution systems where dependable electronic protection, high fault-current interruption performance and reliable high-current switching are essential.
