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1SDA057919R1 ABB E4H-A 3600 PR121/P-LSIG 3600 A 3P Air Circuit Breaker
ABB 1SDA057919R1 is a SACE Emax E4H-A 3600 A three-pole air circuit breaker with a PR121/P-LSIG electronic overcurrent release providing LSIG protection for demanding high-current low-voltage power-distribution systems.
£26,630.62
Why Choose the ABB 1SDA057919R1 E4H-A 3600 Air Circuit Breaker?
The ABB 1SDA057919R1 is a high-performance SACE Emax E4H-A 3600 air circuit breaker engineered for demanding low-voltage power-distribution applications. This three-pole breaker has a rated current of 3600 A and is equipped with the PR121/P-LSIG electronic overcurrent release, providing comprehensive protection for high-current electrical networks.
The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection. These LSIG functions enable the breaker to respond to overloads, short circuits and earth-fault conditions, making the E4H-A 3600 suitable for critical distribution systems where comprehensive electronic protection is required.
As part of the ABB SACE Emax / New Emax range, the E4H-A platform is designed for high-current switching and protection in industrial, commercial and infrastructure installations. Its 3600 A rating and three-pole construction make the 1SDA057919R1 suitable for main distribution and feeder applications serving substantial three-phase loads.
Key Advantages
- High-performance ABB SACE Emax E4H-A air circuit breaker.
- 3600 A rated current for high-capacity low-voltage distribution.
- Three-pole configuration for three-phase electrical networks.
- PR121/P-LSIG electronic overcurrent release.
- Comprehensive LSIG protection for overload, short-circuit and ground-fault conditions.
- Suitable for demanding industrial and infrastructure power systems.
- Supports selective protection strategies within complex distribution networks.
- Robust E4H-A platform for high-current switching and circuit protection.
Key Features
- ABB SACE Emax E4H-A 3600 air circuit breaker.
- 3600 A rated current.
- Three poles.
- PR121/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 for high-current low-voltage distribution systems.
- Part of ABB's SACE Emax / New Emax air circuit breaker family.
Reliable Circuit Protection for High-Current Power Distribution
Air circuit breakers provide essential protection for high-capacity low-voltage systems by interrupting abnormal current when overload, short-circuit or other fault conditions occur. Appropriate electronic protection helps safeguard cables, busbars, transformers and connected equipment while supporting continuity and coordination throughout the electrical distribution network.
The ABB PR121/P-LSIG release combines long-time, short-time, instantaneous and ground-fault protection in a single electronic trip unit. Together with the 3600 A E4H-A platform, the 1SDA057919R1 provides comprehensive protection for demanding installations where high-current switching and effective fault protection are essential.
Typical Applications
- Industrial low-voltage switchboards.
- Main incoming circuit protection.
- High-current feeder protection.
- High-capacity 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.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA057919R1 |
| Product type | Air circuit breaker |
| Frame | E4H-A 3600 |
| Rated current | 3600 A |
| Number of poles | 3 |
| Trip unit | PR121/P-LSIG |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| ABB product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA057919R1?
The ABB 1SDA057919R1 is a SACE Emax E4H-A 3600 three-pole air circuit breaker rated at 3600 A and equipped with a PR121/P-LSIG electronic overcurrent release.
What protection functions does the PR121/P-LSIG trip unit provide?
The PR121/P-LSIG provides long-time, short-time, instantaneous and ground-fault protection, commonly abbreviated as LSIG.
What is the rated current of the ABB 1SDA057919R1?
The ABB 1SDA057919R1 has a rated current of 3600 A and a three-pole configuration for high-current three-phase low-voltage power distribution.
What does LSIG mean on the ABB E4H-A 3600?
LSIG denotes long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection, providing comprehensive electronic protection for the distribution circuit.
Where is the ABB E4H-A 3600 typically used?
It is suitable for industrial switchboards, main distribution assemblies, high-current feeders, transformer and generator distribution systems, and other low-voltage installations requiring dependable 3600 A circuit protection.
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.
