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1SDA057677R1 ABB E3H-A 2500 PR122/P-LSIG 2500 A 3P Air Circuit Breaker Moving Part
ABB 1SDA057677R1 is a SACE Emax E3H-A 2500 A three-pole withdrawable air circuit breaker moving part with a PR122/P-LSIG electronic overcurrent release for comprehensive high-current low-voltage power-distribution protection.
£19,297.96
Why Choose the ABB 1SDA057677R1 E3H-A 2500 Air Circuit Breaker?
The ABB 1SDA057677R1 is a high-performance SACE Emax E3H-A 2500 air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. This three-pole configuration has a rated current of 2500 A and incorporates the advanced PR122/P-LSIG electronic overcurrent release for comprehensive circuit protection.
As part of the ABB SACE Emax family, the E3H-A combines robust high-current switching capability with electronic protection against overload, short-circuit and ground-fault conditions. The PR122/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, helping deliver selective and dependable protection for critical industrial and commercial power-distribution networks.
This specific version is the three-pole withdrawable moving part of the E3H-A 2500 air circuit breaker. Its withdrawable construction supports maintainable switchgear designs by allowing the breaker moving part to be isolated and removed from its compatible fixed part, making it well suited to important distribution systems where serviceability, high-current performance and operational continuity are priorities.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker moving part for demanding power distribution.
- 2500 A rated current for high-current electrical systems.
- Three-pole configuration for three-phase distribution networks.
- Advanced PR122/P-LSIG electronic overcurrent release.
- LSIG protection provides long-time, short-time, instantaneous and ground-fault functions.
- Withdrawable construction supports convenient inspection, servicing and switchgear maintenance.
- Designed for integration with compatible ABB SACE Emax withdrawable switchgear assemblies.
- Robust E3H-A platform for critical low-voltage power-distribution applications.
Key Features
- ABB SACE Emax E3H-A 2500 air circuit breaker moving part.
- 2500 A rated current.
- Three poles.
- Withdrawable execution.
- PR122/P-LSIG electronic trip unit.
- Long-time (L) overload protection.
- Short-time (S) short-circuit protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- Electronic protection designed for selective low-voltage distribution systems.
- Suitable for high-current switchboards and power-distribution assemblies.
Reliable Circuit Protection for High-Current Power Distribution
Air circuit breakers protect low-voltage power systems by interrupting current when overloads, short circuits or other abnormal electrical conditions occur. Accurate electronic protection helps safeguard cables, busbars, transformers and connected equipment while supporting selective coordination and continuity throughout the electrical distribution network.
The ABB PR122/P-LSIG release provides comprehensive LSIG protection for demanding electrical systems. Combined with the withdrawable SACE Emax E3H-A construction, the 1SDA057677R1 is particularly suitable for switchgear where high-current protection, serviceability and dependable operational performance are required.
Typical Applications
- Industrial low-voltage switchboards.
- Main incoming and distribution circuit protection.
- Withdrawable power-distribution switchgear.
- Manufacturing and process-industry electrical systems.
- High-current three-phase distribution networks.
- Commercial and infrastructure power installations.
- Generator and transformer distribution systems.
- Plant distribution boards requiring advanced LSIG protection.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA057677R1 |
| Product type | Air circuit breaker moving part |
| Frame | E3H-A 2500 |
| Rated current | 2500 A |
| Number of poles | 3 |
| Trip unit | PR122/P-LSIG |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Execution | Withdrawable moving part |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA057677R1?
The ABB 1SDA057677R1 is a SACE Emax E3H-A 2500 three-pole withdrawable air circuit breaker moving part rated at 2500 A and equipped with a PR122/P-LSIG electronic overcurrent release.
What protection functions does the PR122/P-LSIG trip unit provide?
The PR122/P-LSIG provides long-time, short-time, instantaneous and ground-fault protection, commonly abbreviated as LSIG.
What is the rated current of the ABB 1SDA057677R1?
The breaker moving part has a rated current of 2500 A and uses a three-pole configuration for high-current three-phase low-voltage power distribution.
Is the ABB 1SDA057677R1 fixed or withdrawable?
The 1SDA057677R1 is the withdrawable moving-part version of the ABB SACE Emax E3H-A 2500 air circuit breaker.
Where is the ABB E3H-A 2500 typically used?
It is typically used in industrial switchboards, withdrawable distribution assemblies and other low-voltage power systems requiring dependable 2500 A circuit protection and advanced LSIG functionality.
Trusted by Electrical Distribution Professionals Worldwide
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power-distribution systems, combining robust high-current performance with advanced electronic protection and flexible switchgear integration.
