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1SDA056271R1 ABB E3S 2000 PR123/P-LSIG 2000A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056271R1 E3S 2000 four-pole withdrawable air circuit breaker moving part rated at 2000 A with a PR123/P-LSIG electronic trip unit providing advanced LSIG protection for high-current low-voltage distribution systems.
£23,123.64
Why Choose the ABB E3S 2000 PR123/P-LSIG 2000A 4P Withdrawable Air Circuit Breaker?
The ABB 1SDA056271R1 is a high-performance SACE Emax E3S air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Rated at 2000 A, this four-pole withdrawable circuit breaker incorporates ABB's advanced PR123/P-LSIG electronic overcurrent release for comprehensive protection of industrial, commercial and infrastructure electrical networks.
Part of the established ABB SACE Emax E3 series, the E3S 2000 combines high current capability with strong short-circuit performance and service-friendly withdrawable construction. The S performance level provides a rated ultimate and service short-circuit breaking capacity of 75 kA at system voltages from 220 to 690 V AC, making this breaker suitable for critical main distribution and high-fault-level applications.
The PR123/P-LSIG electronic release provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. The breaker is supplied as a four-pole withdrawable moving part and includes four auxiliary change-over contacts together with circuit-breaker open/closed position indication, supporting integration into sophisticated switchboards and power-management systems.
Key Advantages
- High-current 2000 A SACE Emax air circuit breaker for demanding power distribution systems.
- Four-pole configuration for comprehensive switching and protection.
- Advanced PR123/P-LSIG electronic trip unit with overload, short-circuit and earth-fault protection.
- 75 kA ultimate and service short-circuit breaking capacity at 400 V AC.
- Suitable for operating voltages up to 690 V AC.
- Withdrawable construction supports efficient inspection, servicing and switchboard maintenance.
- Four auxiliary change-over contacts support status monitoring and control integration.
Key Features
- ABB SACE Emax E3S 2000 air circuit breaker moving part.
- 2000 A rated uninterrupted current.
- Four-pole configuration.
- PR123/P-LSIG electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and earth-fault functions.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 75 kA rated ultimate short-circuit breaking capacity at 400 V AC.
- 75 kA rated service short-circuit breaking capacity at 400 V AC.
- 75 kA short-time withstand current for 1 s.
- Withdrawable construction for use with the corresponding Emax E3 fixed part.
Advanced LSIG Protection for High-Current Distribution
Air circuit breakers such as the ABB E3S 2000 provide switching, isolation and automatic protection for high-current low-voltage distribution circuits. The electronic release monitors circuit conditions and commands the breaker to open when configured overload, short-circuit or earth-fault thresholds are reached, helping protect switchgear, conductors and connected equipment.
The PR123/P-LSIG release provides a comprehensive set of protection functions for sophisticated power distribution networks. Combined with the E3S breaker's 75 kA short-circuit breaking capability and withdrawable construction, the 1SDA056271R1 is particularly suited to installations requiring high fault-current performance, selective protection and convenient maintenance.
Typical Applications
- Main incoming protection in low-voltage switchboards.
- Industrial power distribution systems.
- High-current feeder and distribution circuits.
- Manufacturing and process plant electrical systems.
- Commercial and infrastructure power distribution.
- Transformer and generator distribution switchboards.
- Critical installations requiring advanced LSIG electronic protection.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056271R1 |
| Product type | Air circuit breaker moving part |
| Frame | E3 |
| Short-circuit performance level | S |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated operational current (Ie) | 2000 A |
| Number of poles | 4 |
| Trip unit | PR123/P-LSIG |
| Release type | Electronic |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 400 V AC | 75 kA |
| Rated service short-circuit breaking capacity (Ics) at 400 V AC | 75 kA |
| Rated short-time withstand current (Icw), 1 s | 75 kA |
| Rated short-time withstand current (Icw), 3 s | 65 kA |
| Power loss | 225 W |
| Construction | Withdrawable moving part |
| Auxiliary contacts | 4 change-over contacts |
| Mechanical durability | 20,000 cycles |
| Dimensions (W × H × D) | 558 × 461 × 396.5 mm |
| Net weight | 81 kg |
| Standard | IEC |
| EAN | 8015644576110 |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA056271R1?
The ABB 1SDA056271R1 is a SACE Emax E3S 2000 four-pole withdrawable air circuit breaker moving part rated at 2000 A and equipped with a PR123/P-LSIG electronic overcurrent release.
What protection functions does the PR123/P-LSIG provide?
The PR123/P-LSIG provides long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection functions.
What is the current rating of the ABB E3S 2000 1SDA056271R1?
The circuit breaker has a rated uninterrupted current and rated operational current of 2000 A.
What is the breaking capacity of the ABB E3S 2000?
The E3S 2000 has a rated ultimate and service short-circuit breaking capacity of 75 kA at 400 V AC.
Is the ABB 1SDA056271R1 fixed or withdrawable?
The 1SDA056271R1 is a withdrawable moving part designed for use with the corresponding ABB SACE Emax E3 fixed part.
Trusted ABB Protection for Critical Power Systems
ABB SACE Emax air circuit breakers provide dependable high-current switching and protection for demanding low-voltage distribution systems, combining advanced electronic protection, high short-circuit performance and service-friendly withdrawable construction.
