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1SDA056026R1 ABB E2S 2000 PR121/P-LSIG 2000 A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA056026R1 is a SACE Emax E2S 2000 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSIG R2000 electronic overcurrent release providing comprehensive LSIG protection for high-current low-voltage power distribution systems.
£15,240.23
Why Choose the ABB E2S 2000 PR121/P-LSIG 1SDA056026R1 Air Circuit Breaker?
The ABB 1SDA056026R1 is a high-performance SACE Emax E2S 2000 air circuit breaker (ACB) designed for reliable switching, isolation and comprehensive protection in demanding low-voltage electrical distribution systems. This four-pole fixed circuit breaker is equipped with the PR121/P-LSIG R2000 electronic overcurrent release, providing advanced protection for high-current power distribution applications.
With a rated uninterrupted current of 2000 A and a rated voltage of 690 V AC, the E2S 2000 is suitable for main distribution switchboards, industrial installations, transformer protection and commercial power infrastructure. The PR121/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection.
The E2S performance level provides a rated ultimate short-circuit breaking capacity of 85 kA at 220–440 V AC and 65 kA at 500–690 V AC. This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals and is fitted with four auxiliary contacts plus open/closed position indication for integration into compatible low-voltage switchgear.
Key Advantages
- Heavy-duty 2000 A air circuit breaker for high-current low-voltage power distribution.
- Four-pole configuration suitable for systems requiring phase and neutral switching.
- 85 kA ultimate short-circuit breaking capacity at 220–440 V AC.
- 65 kA breaking capacity at 500–690 V AC.
- Advanced PR121/P-LSIG R2000 electronic overcurrent release.
- Comprehensive LSIG protection against overload, short-time, instantaneous and earth-fault conditions.
- Fixed construction with rear horizontal terminals for permanent switchboard installation.
Key Features
- ABB SACE Emax E2S 2000 series.
- 2000 A rated uninterrupted current.
- Four-pole configuration.
- Fixed execution.
- Rear horizontal terminals.
- PR121/P-LSIG R2000 electronic trip unit.
- Long-time overload protection.
- Short-time delayed short-circuit protection.
- Instantaneous short-circuit protection.
- Integrated earth-fault protection.
- 65 kA short-time withstand current for 1 s.
- Four auxiliary contacts with open/closed position indication.
Comprehensive LSIG Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2S provide switching, isolation and fault protection for high-current low-voltage distribution circuits. The E2S 2000 combines a substantial continuous-current rating with high short-circuit interruption capability, making it particularly suitable for main switchboards and industrial distribution systems where dependable fault clearance is essential.
The PR121/P-LSIG electronic trip unit provides long-time overload, short-time delayed short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the four-pole fixed construction and rear horizontal terminals, the 1SDA056026R1 provides comprehensive electronic protection for demanding permanent switchgear installations.
Typical Applications
- Main low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Transformer protection and distribution.
- Generator and utility distribution systems.
- Manufacturing and process plant switchgear.
- Commercial and infrastructure electrical distribution.
- Four-pole systems requiring neutral switching and earth-fault protection.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series | E2S |
| ABB order code | 1SDA056026R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated voltage | 690 V AC |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal terminals (HR) |
| Trip unit | PR121/P-LSIG R2000 |
| Release type | Electronic overcurrent release |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault protection |
| Short-circuit performance level | S |
| Rated ultimate short-circuit breaking capacity (Icu) at 220–440 V AC | 85 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500–690 V AC | 65 kA |
| Rated service short-circuit breaking capacity (Ics) at 220–440 V AC | 85 kA |
| Rated service short-circuit breaking capacity (Ics) at 500–690 V AC | 65 kA |
| Rated short-time withstand current (Icw), 1 s | 65 kA |
| Rated short-time withstand current (Icw), 3 s | 50 kA |
| Overload release adjustment range | 800–2000 A |
| Short-time delayed short-circuit adjustment range | 2000–20000 A |
| Instantaneous short-circuit adjustment range | 3000–30000 A |
| Earth-fault protection | Integrated |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Electrical durability at ≤440 V | 10000 cycles |
| Electrical durability at 500–690 V | 8000 cycles |
| Mechanical durability | 25000 cycles |
| Dimensions (W × H × D) | 386 × 418 × 302 mm |
| Net weight | 56 kg |
| EAN | 8015644573669 |
Frequently Asked Questions
What is the ABB 1SDA056026R1 used for?
The ABB 1SDA056026R1 is a 2000 A four-pole air circuit breaker designed for switching, isolation and comprehensive overcurrent and earth-fault protection in demanding low-voltage electrical distribution systems.
What is the current rating of the ABB E2S 2000 1SDA056026R1?
The ABB 1SDA056026R1 has a rated uninterrupted current of 2000 A and a rated voltage of 690 V AC.
What protection does the PR121/P-LSIG trip unit provide?
The PR121/P-LSIG electronic trip unit provides LSIG protection covering long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault conditions.
What is the short-circuit breaking capacity of the E2S 2000?
The E2S 2000 provides a rated ultimate short-circuit breaking capacity of 85 kA at 220–440 V AC and 65 kA at 500–690 V AC, with a rated short-time withstand current of 65 kA for 1 s.
Is the ABB 1SDA056026R1 fixed or withdrawable?
The ABB 1SDA056026R1 is a four-pole fixed air circuit breaker with rear horizontal terminals for permanent installation within compatible low-voltage switchgear.
Trusted for Industrial Power Distribution
ABB SACE Emax air circuit breakers are engineered to provide dependable switching, isolation and advanced electronic protection in demanding low-voltage power distribution systems, making the E2S 2000 a robust solution for industrial, commercial and infrastructure installations.
