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1SDA056722R1 ABB E3L2000 PR121/P-LSIG 2000A 3-Pole Fixed Air Circuit Breaker
ABB 1SDA056722R1 E3L2000 PR121/P-LSIG is a 2000 A three-pole fixed SACE Emax air circuit breaker with LSIG electronic protection and rear horizontal terminals for high-current low-voltage power distribution.
£14,728.68
Why Choose the ABB E3L2000 PR121/P-LSIG 2000A Air Circuit Breaker?
The ABB E3L2000 PR121/P-LSIG, order code 1SDA056722R1, is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching of high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E3 series, this three-pole circuit breaker combines a 2000 A rated current with an electronic PR121/P-LSIG overcurrent release for comprehensive circuit protection.
The PR121/P-LSIG protection release provides long-time, short-time, instantaneous and ground-fault protection, helping safeguard electrical installations against overloads, short circuits and earth faults. This configuration is supplied as a fixed circuit breaker with rear horizontal main terminals, making it suitable for installation in industrial switchboards and power distribution assemblies.
With its three-pole fixed construction, 2000 A rated uninterrupted current and 690 V AC rated voltage, the E3L2000 is designed for demanding power distribution duties. The E3L performance level provides a rated ultimate short-circuit breaking capacity of 130 kA at 400 V AC, supporting installations where high fault-current interruption capability is required.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 2000 A rated current for high-current industrial installations.
- PR121/P-LSIG electronic protection release for comprehensive circuit protection.
- LSIG functions provide overload, short-time, instantaneous and ground-fault protection.
- Three-pole fixed configuration for switchboard installation.
- Rear horizontal terminals support practical busbar and power connections.
- High short-circuit interruption capability for demanding distribution networks.
Key Features
- ABB SACE Emax E3L series.
- 2000 A rated uninterrupted current.
- Three-pole construction.
- Fixed circuit-breaker version.
- PR121/P-LSIG R2000 electronic overcurrent release.
- Long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection.
- 690 V AC rated voltage.
- 130 kA ultimate breaking capacity at 400 V AC.
- Rear horizontal main terminals.
- Four auxiliary change-over contacts and circuit-breaker open/closed position indication.
Reliable Protection for High-Power Distribution Systems
Air circuit breakers such as the ABB SACE Emax E3L provide switching, isolation and protection for high-current low-voltage distribution circuits. Their high breaking capacity enables them to interrupt severe fault currents while helping protect switchboards, cables, busbars and connected electrical equipment.
The PR121/P-LSIG electronic release continuously supports protection of the distribution circuit through adjustable overload and short-circuit functions together with ground-fault protection. This makes the E3L2000 suitable for coordinated protection schemes in industrial plants, infrastructure installations and large commercial power distribution systems.
Typical Applications
- Main incoming circuit breakers in low-voltage switchboards.
- Industrial power distribution systems.
- Transformer secondary protection.
- Generator and utility distribution circuits.
- Manufacturing and process plants.
- Large commercial and infrastructure electrical installations.
- High-current feeder and distribution protection.
Technical Specifications
| Series | SACE Emax E3L |
|---|---|
| ABB order code | 1SDA056722R1 |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated voltage | 690 V AC |
| Number of poles | 3 |
| Execution | Fixed |
| Main terminals | Rear horizontal |
| Protection release | PR121/P-LSIG R2000 |
| Protection functions | Long-time, short-time, instantaneous and ground fault (LSIG) |
| Ultimate short-circuit breaking capacity (Icu) at 400 V AC | 130 kA |
| Overload release setting range | 800–2000 A |
| Short-time delayed short-circuit setting range | 2000–20000 A |
| Instantaneous short-circuit setting range | 3000–30000 A |
| Auxiliary contacts | 4 change-over contacts |
| Position indication | Circuit breaker open / closed |
| EAN | 8015644580629 |
Frequently Asked Questions
What is the ABB 1SDA056722R1 used for?
The ABB 1SDA056722R1 is a SACE Emax air circuit breaker designed for switching and protecting high-current low-voltage power distribution circuits in industrial and commercial electrical systems.
What is the rated current of this circuit breaker?
The E3L2000 PR121/P-LSIG has a rated uninterrupted current of 2000 A.
What protection functions does the PR121/P-LSIG provide?
The PR121/P-LSIG electronic release provides long-time, short-time, instantaneous and ground-fault protection, commonly abbreviated as LSIG.
Is the ABB E3L2000 1SDA056722R1 fixed or withdrawable?
This model is a three-pole fixed circuit breaker equipped with rear horizontal main terminals.
What is the breaking capacity of the E3L2000?
This E3L configuration has an ultimate short-circuit breaking capacity of 130 kA at 400 V AC, making it suitable for demanding power distribution installations.
Trusted Protection for Industrial Power Distribution
ABB SACE Emax air circuit breakers are engineered for dependable switching and protection in demanding low-voltage distribution systems, combining high current ratings, electronic protection and robust circuit-breaking performance for industrial and infrastructure applications.
