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1SDA056437R1 ABB E3H2000 PR122/P-LSIG 2000A 3P Fixed Air Circuit Breaker
ABB 1SDA056437R1 E3H2000 is a 2000 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and a PR122/P-LSIG R2000 electronic release providing comprehensive LSIG protection for low-voltage power distribution systems.
£14,120.39
Why Choose the ABB E3H2000 PR122/P-LSIG 2000A 3P Fixed Air Circuit Breaker?
The ABB E3H2000 PR122/P-LSIG, order code 1SDA056437R1, is a high-performance 2000 A three-pole air circuit breaker from the ABB SACE Emax E3 series, designed for switching and protection in demanding low-voltage industrial and commercial power distribution systems. This E3H configuration combines fixed installation with the advanced PR122/P-LSIG R2000 electronic overcurrent release for comprehensive circuit protection.
The PR122/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection, helping protect cables, busbars, transformers and connected equipment against overloads, short circuits and earth faults. Its electronic protection platform provides adjustable protection characteristics suitable for coordinated and selective low-voltage distribution systems.
With a rated current of 2000 A, a three-pole configuration and fixed construction with rear horizontal terminals, the E3H2000 is engineered for substantial distribution loads where high fault-clearing performance and dependable protection are required. Four auxiliary contacts and circuit-breaker open/closed position indication support integration into switchboard control and signalling systems.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker.
- 2000 A rated current for high-current low-voltage distribution systems.
- Three-pole configuration for three-phase electrical networks.
- PR122/P-LSIG R2000 electronic release provides overload, short-circuit and ground-fault protection.
- Fixed construction with rear horizontal terminals for switchboard integration.
- Supplied with four auxiliary contacts and open/closed position indication.
Key Features
- ABB SACE Emax E3H2000 circuit breaker platform.
- 2000 A rated current.
- 3-pole configuration.
- PR122/P-LSIG R2000 electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and ground-fault functions.
- Fixed circuit-breaker version.
- Rear horizontal terminals.
- Four auxiliary contacts for signalling and control.
- Circuit-breaker open/closed position indication.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H2000 provide switching, isolation and overcurrent protection for high-current low-voltage electrical systems. The PR122/P-LSIG electronic release monitors circuit conditions and initiates tripping according to configured protection thresholds when overload, short-circuit or ground-fault conditions occur.
The E3H2000 is engineered for installations where dependable high-current switching, selective protection and robust power distribution are essential. Its fixed three-pole construction, rear horizontal connections and comprehensive LSIG protection make it suitable for main distribution boards, industrial switchgear and other critical electrical installations.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incomer and outgoing feeder protection.
- Transformer secondary protection.
- Manufacturing and process facilities.
- Commercial and infrastructure electrical installations.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056437R1 |
| EAN | 8015644577773 |
| Product type | Air circuit breaker |
| Performance level | H |
| Rated current (In) | 2000 A |
| Number of poles | 3P |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Release | PR122/P-LSIG R2000 |
| Release type | Electronic overcurrent release |
| Protection functions | L, S, I, G |
| Current type | AC |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Mechanical durability | 20,000 cycles |
| Electrical durability | 9,000 cycles |
| Dimensions (W × H × D) | 404 × 418 × 302 mm |
| Net weight | 60 kg |
Frequently Asked Questions
What is the ABB 1SDA056437R1 used for?
It is a 2000 A three-pole air circuit breaker designed for switching and protecting high-current low-voltage power distribution circuits against overloads, short circuits and ground faults.
What protection release is fitted to the ABB E3H2000?
The breaker is fitted with an ABB PR122/P-LSIG R2000 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection.
What is the rated current of ABB 1SDA056437R1?
The E3H2000 configuration has a rated current of 2000 A and uses a three-pole arrangement.
Is the ABB 1SDA056437R1 fixed or withdrawable?
The 1SDA056437R1 is a fixed-version SACE Emax E3H2000 circuit breaker equipped with rear horizontal terminals.
What protection functions does the PR122/P-LSIG provide?
The PR122/P-LSIG provides L, S, I and G protection functions for long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault protection.
Trusted Protection from ABB SACE
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining advanced electronic protection, high-current switching capability and robust construction for industrial and commercial electrical systems.
