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1SDA056439R1 ABB E3H2000 PR123/P-LSIG 2000A 3P Fixed Air Circuit Breaker
ABB 1SDA056439R1 E3H2000 is a 2000 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and a PR123/P-LSIG R2000 electronic release providing advanced LSIG protection for low-voltage power distribution systems.
£19,445.13
Why Choose the ABB E3H2000 PR123/P-LSIG 2000A 3P Fixed Air Circuit Breaker?
The ABB E3H2000 PR123/P-LSIG, order code 1SDA056439R1, 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 PR123/P-LSIG R2000 electronic overcurrent release for comprehensive circuit protection.
The PR123/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. The PR123/P platform is designed for sophisticated power distribution applications requiring advanced protection, measurement and system supervision capabilities.
With a rated uninterrupted current of 2000 A, a three-pole configuration and a rated voltage of 690 V AC, the E3H2000 is engineered for substantial distribution loads. Its H-performance design provides a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC, while rear horizontal terminals simplify integration into compatible low-voltage switchboards.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker.
- 2000 A rated uninterrupted current for high-current power distribution.
- Three-pole configuration for three-phase electrical networks.
- PR123/P-LSIG R2000 electronic release provides comprehensive overload, short-circuit and ground-fault protection.
- High fault-clearing capability with 100 kA Icu at 400 V AC.
- Fixed construction with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax E3H2000 circuit breaker platform.
- 2000 A rated uninterrupted current.
- 3-pole configuration.
- PR123/P-LSIG R2000 electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and ground-fault functions.
- 690 V AC rated voltage.
- 100 kA rated ultimate short-circuit breaking capacity at 400 V AC.
- Fixed version with rear horizontal terminals.
- Four change-over auxiliary contacts with circuit-breaker open/closed position indication.
Advanced 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 PR123/P-LSIG electronic release monitors electrical conditions and initiates tripping according to configured protection thresholds when overload, short-circuit or ground-fault conditions occur.
The E3H2000 is particularly suited to installations where high fault-clearing performance, selective protection and advanced electronic supervision are required. Its fixed three-pole construction, rear horizontal terminals and comprehensive LSIG protection make it suitable for main distribution boards, industrial switchgear and critical electrical infrastructure.
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 | 1SDA056439R1 |
| Product type | Air circuit breaker |
| Performance level | H |
| Rated current (In) | 2000 A |
| Rated uninterrupted current (Iu) | 2000 A |
| Number of poles | 3P |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Release | PR123/P-LSIG R2000 |
| Release type | Electronic overcurrent release |
| Protection functions | L, S, I, G |
| Rated voltage | 690 V AC |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 100 kA |
| Overload release setting | 800–2000 A |
| Instantaneous short-circuit release setting | 3000–30000 A |
| Integrated earth-fault protection | Yes |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| Motor drive | Optional |
| Net weight | 72 kg |
| EAN | 8015644577797 |
Frequently Asked Questions
What is the ABB 1SDA056439R1 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 PR123/P-LSIG R2000 electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection.
What is the rated current of ABB 1SDA056439R1?
The E3H2000 has a rated uninterrupted current of 2000 A and uses a three-pole configuration.
What is the breaking capacity of the ABB E3H2000?
The E3H2000 H-performance circuit breaker has a rated ultimate short-circuit breaking capacity of 100 kA at 400 V AC.
Is the ABB 1SDA056439R1 fixed or withdrawable?
The 1SDA056439R1 is a fixed-version SACE Emax E3H2000 circuit breaker equipped with rear horizontal terminals.
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 fault-clearing performance and robust switchgear construction for industrial and commercial electrical systems.
