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1SDA057779R1 ABB E3V-A 2000 PR123/P-LSIG 2000 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA057779R1 is a SACE Emax E3V-A 2000 A three-pole fixed air circuit breaker with rear horizontal terminals and a PR123/P-LSIG R2000 electronic overcurrent release providing long-time, short-time, instantaneous and ground-fault protection.
£17,725.02
Why Choose the ABB E3V-A 2000 PR123/P-LSIG Air Circuit Breaker?
The ABB E3V-A 2000 PR123/P-LSIG, order code 1SDA057779R1, is a high-performance SACE Emax air circuit breaker designed for demanding low-voltage power distribution systems. This three-pole fixed breaker combines the E3V-A platform with a PR123/P-LSIG R2000 electronic overcurrent release, providing comprehensive protection for critical high-current circuits.
Rated at 2000 A, the breaker provides LSIG protection comprising long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault functions. The combination of these protection elements supports reliable fault interruption and coordinated protection across industrial, commercial and infrastructure electrical distribution networks.
This specific configuration is a three-pole fixed version with rear horizontal terminals. It is also fitted with four auxiliary contacts and open/closed position indication, supporting integration with switchboard signalling and control systems while providing the robust switching performance associated with ABB SACE Emax circuit breakers.
Key Advantages
- High-current 2000 A SACE Emax air circuit breaker.
- PR123/P-LSIG R2000 electronic overcurrent release for advanced protection.
- LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
- Three-pole fixed configuration for three-phase power distribution.
- Rear horizontal terminals for fixed switchboard installation.
- Four auxiliary contacts support breaker status signalling and control integration.
- ABB E3V-A platform engineered for demanding high-current distribution duties.
Key Features
- ABB SACE Emax E3V-A circuit breaker platform.
- 2000 A rated current.
- Three-pole construction.
- Fixed breaker execution.
- Rear horizontal terminals.
- PR123/P-LSIG R2000 electronic overcurrent release.
- Long-time overload protection.
- Short-time short-circuit protection.
- Instantaneous short-circuit protection.
- Ground-fault protection.
- Four auxiliary contacts with open/closed position indication.
Advanced LSIG Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E3V-A provide switching, isolation and fault protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical conditions and initiates breaker operation when configured protection thresholds are exceeded.
The PR123/P-LSIG release combines long-time overload protection, short-time protection for selective coordination, instantaneous protection against severe short circuits and ground-fault protection. This comprehensive protection arrangement makes the E3V-A 2000 suitable for critical distribution systems where dependable fault protection and continuity of service are important.
Typical Applications
- Industrial low-voltage switchboards.
- Main incoming electrical distribution circuits.
- High-current distribution feeders.
- Manufacturing and process plants.
- Commercial and infrastructure power systems.
- Transformer and generator distribution systems.
Technical Specifications
| Series | SACE Emax / New Emax |
|---|---|
| ABB order code | 1SDA057779R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E3V-A |
| Rated current | 2000 A |
| Number of poles | 3 |
| Trip unit | PR123/P-LSIG R2000 |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Execution | Fixed |
| Terminals | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Version | UL |
| Weight | 60 kg |
| EAN | 8015644600426 |
Frequently Asked Questions
What is the ABB 1SDA057779R1?
The ABB 1SDA057779R1 is a SACE Emax E3V-A three-pole fixed air circuit breaker rated at 2000 A and fitted with a PR123/P-LSIG R2000 electronic overcurrent release.
What protection does the PR123/P-LSIG release provide?
The PR123/P-LSIG provides long-time, short-time, instantaneous and ground-fault protection, collectively identified as LSIG protection.
What is the rated current of the ABB E3V-A 2000?
The ABB 1SDA057779R1 has a rated current of 2000 A, making it suitable for demanding high-current low-voltage distribution applications.
Is the ABB 1SDA057779R1 fixed or withdrawable?
The 1SDA057779R1 is a fixed three-pole circuit breaker with rear horizontal terminals for installation within a suitable low-voltage switchboard.
What auxiliary signalling is included?
The breaker is fitted with four auxiliary contacts and open/closed position indication, supporting integration with switchboard signalling, monitoring and control systems.
Trusted Protection from ABB
ABB SACE Emax air circuit breakers combine robust high-current switching with advanced electronic protection and practical switchboard integration for demanding industrial, commercial and infrastructure power distribution systems.
