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1SDA056024R1 ABB E2S2000 PR121/P-LI 2000A 4P Fixed Air Circuit Breaker
ABB 1SDA056024R1 is a SACE Emax E2S 2000 four-pole 2000 A fixed air circuit breaker with rear horizontal terminals and a PR121/P-LI R2000 electronic overcurrent release for high-current low-voltage circuit protection.
£13,796.63
Why Choose the ABB E2S2000 PR121/P-LI 2000A 4P Fixed Air Circuit Breaker?
The ABB E2S2000 PR121/P-LI, order code 1SDA056024R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. As part of the ABB SACE Emax E2S series, this four-pole fixed circuit breaker is rated at 2000 A and incorporates a PR121/P-LI R2000 electronic overcurrent release.
The PR121/P-LI trip unit provides long-time overload (L) and instantaneous short-circuit (I) protection, helping protect electrical distribution systems against sustained overcurrents and severe short-circuit conditions. The electronic release supports dependable circuit protection in industrial, commercial and infrastructure switchboards where high-current switching and protection are required.
This E2S2000 configuration features a four-pole fixed execution with rear horizontal terminals. It has a rated operational current of 2000 A, rated operational voltage up to 690 V AC and an ultimate short-circuit breaking capacity of up to 85 kA at 400–415 V AC, making it suitable for substantial low-voltage distribution installations.
Key Advantages
- High-capacity 2000 A SACE Emax air circuit breaker.
- Advanced PR121/P electronic overcurrent release for dependable circuit protection.
- LI protection provides long-time overload and instantaneous short-circuit protection.
- Four-pole configuration for switching and protecting three-phase systems with neutral.
- Fixed execution with rear horizontal terminals for permanent switchboard installations.
- High short-circuit performance of up to 85 kA at 400–415 V AC.
Key Features
- ABB SACE Emax E2S 2000 air circuit breaker.
- 2000 A rated current.
- Four-pole configuration.
- PR121/P-LI R2000 electronic overcurrent release.
- Long-time overload protection (L).
- Instantaneous short-circuit protection (I).
- Fixed circuit breaker execution.
- Rear horizontal flat terminals.
- Rated operational voltage up to 690 V AC.
- Fitted with four auxiliary contacts and circuit breaker open/closed position indication.
Reliable High-Current Protection for Low-Voltage Distribution
Air circuit breakers such as the ABB SACE Emax E2S2000 provide switching and protection for high-current low-voltage distribution circuits. The electronic overcurrent release continuously supervises current conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected electrical equipment.
The PR121/P-LI release combines long-time overload and instantaneous short-circuit protection in a robust electronic trip unit. Together with the E2S frame's high breaking capacity and four-pole construction, this configuration provides dependable protection for main distribution and feeder circuits in demanding industrial and commercial installations.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plant switchgear.
- Commercial building electrical distribution.
- Infrastructure and utility installations.
- Main incomer and high-current feeder protection.
- Four-pole three-phase distribution systems requiring neutral switching.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series / frame | E2S 2000 |
| ABB order code | 1SDA056024R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 2000 A |
| Rated uninterrupted current (Iu) | 2000 A |
| Number of poles | 4 |
| Trip unit | PR121/P-LI R2000 |
| Protection functions | LI |
| Long-time protection | L |
| Instantaneous protection | I |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Ultimate short-circuit breaking capacity (Icu) | 85 kA at 400–415 V AC |
| Service short-circuit breaking capacity (Ics) | 85 kA at 400–415 V AC |
| Rated short-time withstand current (Icw) | 65 kA for 1 s |
| Execution | Fixed |
| Terminal configuration | Rear horizontal flat terminals |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Dimensions (W × H × D) | 386 × 418 × 302 mm |
| Net weight | 56 kg |
| Standard | IEC |
| EAN | 8015644573645 |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA056024R1?
The ABB 1SDA056024R1 is a SACE Emax E2S 2000 four-pole fixed air circuit breaker rated at 2000 A, fitted with rear horizontal terminals and a PR121/P-LI R2000 electronic overcurrent release.
What is the rated current of the ABB E2S2000 PR121/P-LI?
The circuit breaker has a rated current of 2000 A and is designed for high-current low-voltage power distribution applications.
What does LI protection mean on the PR121/P trip unit?
LI denotes long-time overload protection and instantaneous short-circuit protection, providing protection against sustained overcurrents and severe short-circuit faults.
How many poles does ABB 1SDA056024R1 have?
The ABB 1SDA056024R1 is a four-pole circuit breaker, allowing all three phase conductors and the neutral conductor to be incorporated into the breaker configuration.
Is the ABB 1SDA056024R1 fixed or withdrawable?
This model is a fixed circuit breaker with rear horizontal flat terminals, intended for permanent installation within a compatible low-voltage switchboard.
What is the breaking capacity of the ABB E2S2000 1SDA056024R1?
The breaker has a rated ultimate short-circuit breaking capacity of 85 kA at 400–415 V AC, with a rated operational voltage of up to 690 V AC.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are widely applied in demanding low-voltage power distribution systems, providing dependable high-current switching and electronic circuit protection for industrial, commercial and infrastructure installations.
