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1SDA056025R1 ABB E2S2000 PR121/P-LSI 2000A 4P Fixed Air Circuit Breaker
ABB 1SDA056025R1 is a SACE Emax E2S 2000 four-pole 2000 A fixed air circuit breaker with rear horizontal terminals and a PR121/P-LSI R2000 electronic overcurrent release for high-current low-voltage circuit protection.
£14,344.24
Why Choose the ABB E2S2000 PR121/P-LSI 2000A 4P Fixed Air Circuit Breaker?
The ABB E2S2000 PR121/P-LSI, order code 1SDA056025R1, 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 the PR121/P-LSI R2000 electronic overcurrent release.
The PR121/P-LSI trip unit provides long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. This combination enables coordinated protection against sustained overloads and short-circuit faults, helping protect switchgear, cables, busbars and connected equipment in industrial and commercial electrical distribution systems.
This E2S2000 configuration features a four-pole fixed execution with rear horizontal flat 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 85 kA at 400–415 V AC, providing robust performance for high-current low-voltage switchboards.
Key Advantages
- High-capacity 2000 A SACE Emax air circuit breaker.
- Advanced PR121/P electronic overcurrent release for dependable circuit protection.
- LSI protection against long-time overload, short-time and instantaneous short-circuit conditions.
- Four-pole configuration suitable for three-phase systems requiring neutral switching.
- Fixed execution with rear horizontal flat terminals for permanent switchboard installation.
- High short-circuit performance of 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-LSI R2000 electronic overcurrent release.
- Long-time overload protection (L).
- Short-time short-circuit protection (S).
- 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 open/closed position indication.
Advanced Protection for High-Current Power 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 monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected electrical equipment.
The PR121/P-LSI release combines long-time overload, short-time short-circuit and instantaneous short-circuit protection within one 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 | 1SDA056025R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 2000 A |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated operational current (Ie) | 2000 A |
| Number of poles | 4 |
| Trip unit | PR121/P-LSI R2000 |
| Release type | Electronic |
| Protection functions | LSI |
| Long-time protection | L |
| Short-time protection | S |
| 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 |
| Ultimate short-circuit breaking capacity at 690 V AC | 65 kA |
| Rated short-time withstand current (Icw) | 65 kA for 1 s; 50 kA for 3 s |
| Short-circuit performance level | S |
| Execution | Fixed |
| Terminal configuration | Rear horizontal flat terminals |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Power loss | 180 W |
| Mechanical durability | 25,000 operating cycles |
| Standard | IEC |
| EAN | 8015644573652 |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA056025R1?
The ABB 1SDA056025R1 is a SACE Emax E2S 2000 four-pole fixed air circuit breaker rated at 2000 A, fitted with rear horizontal flat terminals and a PR121/P-LSI R2000 electronic overcurrent release.
What is the rated current of the ABB E2S2000 PR121/P-LSI?
The circuit breaker has a rated current of 2000 A and is designed for high-current low-voltage power distribution applications.
What does LSI protection mean on the PR121/P trip unit?
LSI denotes long-time overload, short-time short-circuit and instantaneous short-circuit protection, providing coordinated protection against sustained overcurrents and short-circuit faults.
How many poles does ABB 1SDA056025R1 have?
The ABB 1SDA056025R1 is a four-pole circuit breaker, allowing three phase conductors and the neutral conductor to be incorporated into the breaker configuration.
Is the ABB 1SDA056025R1 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 1SDA056025R1?
The breaker has an ultimate short-circuit breaking capacity of 85 kA at 400–415 V AC and 65 kA at 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 advanced electronic circuit protection for industrial, commercial and infrastructure installations.
