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1SDA055928R1 ABB E2N 2000 PR121/P-LI 2000 A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA055928R1 is a SACE Emax E2N 2000 A four-pole fixed air circuit breaker with rear horizontal terminals and a PR121/P-LI electronic overcurrent release for high-current low-voltage power distribution protection.
£13,394.80
Why Choose the ABB E2N 2000 PR121/P-LI 1SDA055928R1 Air Circuit Breaker?
The ABB 1SDA055928R1 is a robust SACE Emax E2N 2000 air circuit breaker (ACB) designed for reliable switching, isolation and circuit protection in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E2 series, this four-pole fixed circuit breaker is equipped with a PR121/P-LI electronic overcurrent release for dependable overload and instantaneous short-circuit protection.
With a rated uninterrupted current of 2000 A and a rated operational voltage of up to 690 V AC, the E2N 2000 is suitable for high-current industrial and commercial distribution installations. Its N short-circuit performance level provides a rated ultimate breaking capacity of 65 kA at 400–415 V AC, supporting reliable fault interruption in demanding switchboard applications.
This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals. The breaker incorporates the PR121/P-LI R2000 electronic trip unit, four auxiliary contacts and open/closed circuit-breaker position indication, providing a practical solution for main distribution boards, transformer protection and industrial power systems.
Key Advantages
- Heavy-duty 2000 A air circuit breaker for high-current electrical distribution.
- Four-pole configuration suitable for three-phase systems requiring neutral switching.
- 65 kA ultimate short-circuit breaking capacity at 400–415 V AC.
- PR121/P-LI electronic overcurrent release for overload and instantaneous short-circuit protection.
- Rated operational voltage of up to 690 V AC.
- Fixed construction with rear horizontal terminals for switchboard installation.
- Part of the proven ABB SACE Emax E2N circuit breaker platform.
Key Features
- ABB SACE Emax E2N 2000 series.
- 2000 A rated uninterrupted current.
- Four-pole configuration.
- Fixed execution.
- Rear horizontal terminals.
- PR121/P-LI R2000 electronic trip unit.
- Long-time overload and instantaneous short-circuit protection.
- 65 kA Icu at 400–415 V AC.
- 55 kA Icu at 500–690 V AC.
- 55 kA short-time withstand current for 1 s.
- Four auxiliary contacts fitted.
- Open/closed circuit-breaker position indication.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2N provide switching, isolation and fault protection for high-current low-voltage distribution circuits. The E2N 2000 combines a high continuous-current capability with substantial short-circuit breaking performance, making it particularly suitable for main switchboards, industrial distribution panels and other installations where dependable interruption of high fault currents is essential.
The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the four-pole configuration, fixed construction and rear horizontal connections, the 1SDA055928R1 provides a robust solution for electrical distribution systems requiring reliable phase and neutral switching together with electronic circuit protection.
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 building electrical infrastructure.
- Four-pole distribution systems requiring neutral switching.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series | E2N |
| ABB order code | 1SDA055928R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated operational current (Ie) | 2000 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal arrangement | Rear horizontal |
| Trip unit | PR121/P-LI R2000 |
| Protection functions | LI – long-time overload and instantaneous short-circuit protection |
| Short-circuit performance level | N |
| Rated ultimate short-circuit breaking capacity (Icu) at 220–440 V AC | 65 kA |
| Rated ultimate short-circuit breaking capacity (Icu) at 500–690 V AC | 55 kA |
| Rated service short-circuit breaking capacity (Ics) at 220–440 V AC | 65 kA |
| Rated service short-circuit breaking capacity (Ics) at 500–690 V AC | 55 kA |
| Rated short-time withstand current (Icw), 1 s | 55 kA |
| Rated short-time withstand current (Icw), 3 s | 42 kA |
| Current type | AC |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Dimensions (W × H × D) | 386 × 418 × 302 mm |
| Weight | 56 kg |
| EAN | 8015644572686 |
Frequently Asked Questions
What is the ABB 1SDA055928R1 used for?
The ABB 1SDA055928R1 is a 2000 A four-pole air circuit breaker designed for switching, isolation and protection in high-current low-voltage electrical distribution systems.
What is the current rating of the ABB E2N 2000 1SDA055928R1?
The circuit breaker has a rated uninterrupted current of 2000 A and is designed for demanding industrial and commercial power distribution applications.
What protection does the PR121/P-LI trip unit provide?
The PR121/P-LI electronic trip unit provides LI protection functions, consisting of long-time overload protection and instantaneous short-circuit protection.
What is the short-circuit breaking capacity of the E2N 2000?
The E2N 2000 provides a rated ultimate short-circuit breaking capacity of 65 kA at 400–415 V AC and 55 kA at 500–690 V AC.
Is the ABB 1SDA055928R1 fixed or withdrawable?
The ABB 1SDA055928R1 is a four-pole fixed 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 provide dependable switching, isolation and electronic protection for demanding low-voltage power distribution systems, making the E2N 2000 a robust solution for industrial, commercial and infrastructure installations.
