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1SDA059377R1 ABB E3H 1000 PR123/P-LSIG 1000 A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA059377R1 is a SACE Emax E3H 1000 A three-pole fixed air circuit breaker with horizontal rear terminals and a PR123/P-LSIG electronic trip unit for comprehensive low-voltage power distribution protection.
£15,234.74
Why Choose the ABB 1SDA059377R1 E3H 1000 Air Circuit Breaker?
The ABB 1SDA059377R1 is a high-performance SACE Emax E3H 1000 air circuit breaker designed for protection, switching and isolation in demanding low-voltage power distribution systems. Configured as E3H 1000 PR123/P-LSIG In=1000A 3p F HR, it combines a 1000 A rated current, three-pole construction and ABB's advanced PR123/P-LSIG electronic overcurrent release.
The PR123/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, delivering comprehensive electronic protection against overload, short-circuit and earth-fault conditions. This combination makes the breaker particularly suitable for industrial and commercial distribution systems where advanced protection and dependable fault interruption are required.
The 1SDA059377R1 features a three-pole fixed construction with horizontal rear terminals for permanent integration into low-voltage switchboards. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, combining comprehensive protection with useful switchboard status signalling.
Key Advantages
- High-performance 1000 A E3H air circuit breaker for demanding low-voltage distribution.
- Three-pole configuration suitable for three-phase electrical systems.
- Advanced PR123/P-LSIG electronic overcurrent release.
- Long-time, short-time, instantaneous and ground-fault protection.
- Fixed construction for permanent switchboard installation.
- Horizontal rear terminals for practical rear busbar or conductor connections.
- Fitted with four auxiliary contacts and open/closed position indication.
- Part of the proven ABB SACE Emax air circuit breaker platform.
Key Features
- ABB SACE Emax E3H 1000 air circuit breaker.
- 1000 A rated current.
- Three-pole construction.
- PR123/P-LSIG electronic trip unit.
- LSIG protection functions for long-time, short-time, instantaneous and ground-fault protection.
- Fixed (F) execution.
- Horizontal rear (HR) terminal arrangement.
- Four auxiliary contacts.
- Integrated circuit-breaker open/closed position indication.
- Designed for high-current protection, switching and isolation in low-voltage power distribution systems.
Reliable Protection for Low-Voltage Power Distribution
The ABB SACE Emax E3H is engineered to protect high-current low-voltage distribution circuits while providing dependable switching and isolation. Its PR123/P-LSIG electronic release combines long-time overload protection, short-time selective protection, instantaneous short-circuit protection and ground-fault protection, helping safeguard feeders, busbars, switchgear and connected electrical equipment.
The fixed three-pole construction of the 1SDA059377R1 makes it particularly suitable for permanent installation in industrial and commercial switchboards. Horizontal rear terminals provide a practical interface for rear busbar or conductor connections, while the PR123/P-LSIG release supports applications requiring comprehensive electronic protection and dependable distribution-system performance.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process plant switchgear.
- Protection of high-current feeders and distribution circuits.
- Three-phase systems requiring ground-fault protection.
- Fixed switchgear requiring advanced LSIG electronic protection.
Technical Specifications
| Series | SACE Emax |
|---|---|
| ABB order code | 1SDA059377R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E3H |
| Rated current | 1000 A |
| Number of poles | 3 |
| Trip unit | PR123/P-LSIG |
| Release type | Electronic |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Execution | Fixed |
| Terminal arrangement | Horizontal rear (HR) |
| Ground-fault protection | Integrated |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Product weight | 72 kg |
| EAN | 8015644617387 |
Frequently Asked Questions
What is the ABB 1SDA059377R1?
The ABB 1SDA059377R1 is a SACE Emax E3H 1000 three-pole fixed air circuit breaker with horizontal rear terminals and a PR123/P-LSIG electronic overcurrent release.
What is the rated current of the ABB 1SDA059377R1?
The circuit breaker has a rated current of 1000 A.
How many poles does the ABB 1SDA059377R1 have?
The 1SDA059377R1 has a three-pole configuration suitable for three-phase low-voltage power distribution systems.
Which trip unit is fitted to the ABB 1SDA059377R1?
The breaker is equipped with the ABB PR123/P-LSIG electronic trip unit.
What does LSIG protection mean?
LSIG denotes long-time, short-time, instantaneous and ground-fault protection, providing comprehensive electronic protection against overload, short-circuit and earth-fault conditions.
Does the ABB 1SDA059377R1 provide ground-fault protection?
Yes. The PR123/P-LSIG configuration includes ground-fault protection in addition to long-time, short-time and instantaneous overcurrent protection.
Is the ABB 1SDA059377R1 fixed or withdrawable?
The 1SDA059377R1 is a fixed (F) air circuit breaker designed for permanent installation within compatible low-voltage switchgear.
What does HR mean on the ABB 1SDA059377R1?
HR identifies the horizontal rear terminal arrangement used for the main electrical connections.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are engineered for demanding industrial, commercial and infrastructure power distribution systems where dependable high-current protection, advanced electronic trip functionality and robust switchgear integration are required.
