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1SDA055837R1 ABB E2B2000 PR122/P-LSIG 2000 A 4-Pole Fixed Air Circuit Breaker
ABB 1SDA055837R1 is a SACE New Emax E2B2000 four-pole 2000 A fixed air circuit breaker with rear horizontal terminals and a PR122/P-LSIG R2000 electronic release providing long-time, short-time, instantaneous and earth-fault protection.
£14,397.65
Why Choose the ABB E2B2000 1SDA055837R1 Air Circuit Breaker?
The ABB E2B2000 1SDA055837R1 is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in low-voltage electrical distribution systems. Part of the established ABB New Emax series, this E2B 2000 configuration features a four-pole fixed design, a rated current of 2000 A and a PR122/P-LSIG electronic overcurrent release.
Designed for demanding industrial and commercial power distribution applications, the E2B2000 combines dependable circuit protection with advanced electronic trip functionality. The PR122/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection, helping protect electrical installations against overload, short-circuit and earth-fault conditions.
This version is a fixed four-pole circuit breaker with rear horizontal terminals and combines a 2000 A rated current with a rated operational voltage of up to 690 V AC. Its E2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA, while four auxiliary contacts and open/closed position indication support integration into switchgear control and signalling systems.
Key Advantages
- Robust ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 2000 A rated current for demanding high-current electrical installations.
- Four-pole fixed configuration suitable for four-conductor distribution systems.
- PR122/P-LSIG electronic trip unit providing comprehensive overcurrent and earth-fault protection.
- 42 kA short-circuit breaking capacity across its rated AC operational voltage range.
- Rear horizontal terminals facilitate integration into compatible low-voltage switchboards.
Key Features
- ABB SACE New Emax E2B 2000 circuit breaker platform.
- 2000 A rated current.
- Four-pole construction.
- Fixed circuit breaker configuration.
- Rear horizontal terminals.
- PR122/P-LSIG electronic overcurrent release.
- R2000 release rating.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- 690 V AC maximum rated operational voltage.
- Four auxiliary contacts and circuit breaker open/closed position indication.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2B2000 provide switching and protection for high-current low-voltage distribution circuits. Electronic trip technology enables accurate detection of abnormal current conditions, allowing the breaker to disconnect the protected circuit when configured protection thresholds are exceeded.
The PR122/P-LSIG release provides L, S, I and G protection functions, covering long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the fixed Emax architecture and rear horizontal terminals, this configuration is well suited to switchboards requiring dependable high-current protection and comprehensive electronic trip functionality.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Commercial and infrastructure electrical distribution.
- Manufacturing and process plant switchgear.
- Incoming and outgoing high-current feeder protection.
- Four-pole distribution systems requiring integrated earth-fault protection.
Technical Specifications
| Series | SACE New Emax |
|---|---|
| ABB order code | 1SDA055837R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker |
| Frame | E2B 2000 |
| Rated current | 2000 A |
| Rated uninterrupted current | 2000 A |
| Rated operational current | 2000 A |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Number of poles | 4 |
| Execution | Fixed |
| Terminal connection | Rear horizontal |
| Trip unit | PR122/P-LSIG |
| Release type | Electronic |
| Release rating | R2000 / 2000 A |
| Protection functions | L (long-time), S (short-time), I (instantaneous) and G (earth fault) |
| Rated ultimate short-circuit breaking capacity | 42 kA |
| Rated service short-circuit breaking capacity | 42 kA |
| Rated short-time withstand current | 42 kA for 1 s / 3 s |
| Short-circuit performance level | B |
| Power loss | 180 W |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Standard | IEC |
| EAN | 8015644571771 |
| Weight | approx. 68 kg |
Frequently Asked Questions
What is the ABB E2B2000 1SDA055837R1 used for?
The ABB 1SDA055837R1 is a SACE Emax E2B 2000 air circuit breaker designed for switching and comprehensive overcurrent protection in high-current low-voltage electrical distribution systems.
What is the rated current of the ABB E2B2000 1SDA055837R1?
This circuit breaker has a rated current of 2000 A.
Which trip unit is fitted to the ABB 1SDA055837R1?
The breaker is fitted with an ABB PR122/P-LSIG R2000 electronic overcurrent release, providing long-time, short-time, instantaneous and earth-fault protection.
What does LSIG protection mean on the PR122/P trip unit?
LSIG denotes long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, providing comprehensive protection for the connected low-voltage distribution system.
Is the ABB 1SDA055837R1 fixed or withdrawable?
The 1SDA055837R1 is a fixed four-pole E2B 2000 circuit breaker equipped with rear horizontal terminals for integration into compatible low-voltage switchgear.
Trusted Protection from ABB
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power distribution installations, combining advanced electronic protection technology with robust switchgear integration.
