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1SDA057639R1 ABB E3H-A 2000 PR122/P-LSI 2000 A 3-Pole Air Circuit Breaker
ABB 1SDA057639R1 SACE Emax E3H-A 2000 A three-pole air circuit breaker with PR122/P-LSI R2000 electronic overcurrent release providing long-time, short-time and instantaneous protection for demanding low-voltage power distribution.
£12,008.33
Why Choose the ABB E3H-A 2000 PR122/P-LSI 1SDA057639R1 Air Circuit Breaker?
The ABB 1SDA057639R1 is a high-performance SACE Emax E3H-A air circuit breaker designed for reliable switching and protection in demanding low-voltage electrical distribution systems. Part of the ABB New Emax series, this three-pole breaker combines a 2000 A rated current with the PR122/P-LSI electronic overcurrent release for industrial, commercial and infrastructure power distribution applications.
The breaker is equipped with an ABB PR122/P-LSI R2000 electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection. This LSI protection configuration helps protect electrical distribution circuits against sustained overloads and short-circuit faults while supporting coordinated protection in appropriately designed installations.
With its 2000 A current rating and E3H-A frame, the 1SDA057639R1 is suited to high-current feeders, incomers and other critical low-voltage distribution duties. The PR122/P electronic release provides the protection flexibility required in sophisticated switchboard systems where dependable circuit protection and continuity of supply are important.
Key Advantages
- Heavy-duty ABB SACE Emax E3H-A air circuit breaker for demanding low-voltage power distribution.
- 2000 A rated current for high-current electrical installations.
- PR122/P-LSI R2000 electronic trip unit for comprehensive electronic overcurrent protection.
- LSI functions provide long-time, short-time and instantaneous protection.
- Short-time protection supports selective coordination in appropriately designed electrical distribution systems.
- Three-pole configuration for three-phase power distribution.
- E3H-A construction is designed for demanding applications requiring robust short-circuit performance.
Key Features
- ABB SACE Emax E3H-A series.
- 2000 A rated current.
- Three-pole air circuit breaker.
- PR122/P-LSI R2000 electronic overcurrent release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Designed for high-current low-voltage AC distribution.
- Suitable for industrial, commercial and infrastructure switchgear applications.
Advanced LSI Protection for High-Current Power Distribution
The ABB SACE Emax E3H-A platform is engineered for demanding low-voltage distribution duties where reliable switching and electronic circuit protection are required. The PR122/P-LSI electronic trip unit provides long-time protection against sustained overloads, short-time protection against short-circuit conditions and instantaneous protection for severe fault currents.
The inclusion of short-time protection provides greater coordination flexibility than an LI-only release. In an appropriately engineered distribution system, this can help downstream protective devices clear relevant faults before the upstream air circuit breaker operates, improving selectivity and helping minimise unnecessary interruption to unaffected parts of the installation.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process plant switchgear.
- Transformer and generator distribution circuits.
- High-current three-phase AC installations.
- Main incomer and feeder circuit protection.
- Distribution networks requiring coordinated LSI overcurrent protection.
Technical Specifications
| Series | SACE Emax E3H-A |
|---|---|
| Product group | 310513-New Emax |
| Order code / MPN | 1SDA057639R1 |
| Product type | Air circuit breaker |
| Rated current | 2000 A |
| Number of poles | 3 |
| Trip unit | PR122/P-LSI R2000 |
| Trip unit rated current | 2000 A |
| Protection functions | Long-time, short-time and instantaneous (LSI) |
| Application | Low-voltage AC power distribution |
Frequently Asked Questions
What is the ABB 1SDA057639R1 used for?
The ABB 1SDA057639R1 is a SACE Emax E3H-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 E3H-A 1SDA057639R1?
The ABB 1SDA057639R1 has a rated current of 2000 A and a three-pole configuration for high-current three-phase electrical distribution systems.
Which trip unit is fitted to the ABB 1SDA057639R1?
The breaker is equipped with an ABB PR122/P-LSI R2000 electronic overcurrent release for long-time, short-time and instantaneous protection.
What does LSI protection mean on the ABB PR122/P trip unit?
LSI refers to long-time overload, short-time short-circuit and instantaneous short-circuit protection. These functions provide comprehensive electronic overcurrent protection and can support selective coordination within appropriately designed low-voltage distribution systems.
Where can the ABB E3H-A 2000 air circuit breaker be used?
The E3H-A 2000 is suitable for applications such as main distribution switchboards, industrial power systems, transformer and generator circuits, manufacturing facilities and other high-current low-voltage installations requiring electronic LSI protection.
Trusted by Electrical Professionals Worldwide
ABB SACE Emax air circuit breakers provide dependable switching and electronic protection for demanding low-voltage power distribution systems, with the E3H-A platform suited to industrial, commercial and infrastructure installations requiring robust high-current protection and advanced overcurrent coordination.
