Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA055851R1 ABB E2B2000 PR122/P-LI 2000 A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA055851R1 is a SACE New Emax E2B2000 four-pole 2000 A withdrawable air circuit breaker moving part with a PR122/P-LI R2000 electronic release providing long-time overload and instantaneous short-circuit protection.
£14,384.26
Why Choose the ABB E2B2000 1SDA055851R1 Air Circuit Breaker?
The ABB E2B2000 1SDA055851R1 is a high-performance SACE Emax air circuit breaker (ACB) moving part 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 withdrawable design, a rated current of 2000 A and a PR122/P-LI electronic overcurrent release.
Designed for demanding industrial, commercial and infrastructure power distribution applications, the E2B2000 combines dependable circuit protection with the serviceability of a withdrawable breaker arrangement. The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection, helping safeguard electrical installations against damaging overcurrent conditions.
This version is supplied as the moving part for an E2B 2000 withdrawable circuit breaker and combines a 2000 A rated current with four-pole construction and a rated operational voltage of up to 690 V AC. The E2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA, making it suitable for substantial low-voltage distribution systems.
Key Advantages
- Robust ABB SACE Emax air circuit breaker moving part for high-current low-voltage distribution.
- 2000 A rated current for demanding industrial and commercial installations.
- Four-pole configuration suitable for four-conductor power distribution systems.
- PR122/P-LI electronic trip unit providing long-time overload and instantaneous short-circuit protection.
- 42 kA ultimate and service short-circuit breaking capacity across the rated operational voltage range.
- Withdrawable design supports convenient servicing, inspection and replacement within compatible SACE Emax switchgear.
Key Features
- ABB SACE New Emax E2B 2000 circuit breaker platform.
- 2000 A rated current.
- Four-pole construction.
- Withdrawable moving-part configuration.
- PR122/P-LI electronic overcurrent release.
- R2000 release rating.
- Long-time overload and instantaneous short-circuit protection functions.
- 690 V AC rated operational voltage.
- 42 kA rated ultimate short-circuit breaking capacity.
- 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-LI release provides L and I protection functions, covering long-time overload and instantaneous short-circuit protection. Combined with the withdrawable SACE Emax architecture, this configuration is well suited to switchboards where dependable high-current protection, maintainability and operational flexibility are important.
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 withdrawable air circuit breakers.
Technical Specifications
| Series | SACE New Emax |
|---|---|
| ABB order code | 1SDA055851R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Frame | E2B 2000 |
| Rated current | 2000 A |
| Rated uninterrupted current | 2000 A |
| Rated operational current | 2000 A |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage | 1000 V |
| Rated impulse withstand voltage | 12 kV |
| Current type | AC |
| Number of poles | 4 |
| Execution | Withdrawable |
| Trip unit | PR122/P-LI |
| Release type | Electronic |
| Release rating | R2000 / 2000 A |
| Protection functions | L (long-time) and I (instantaneous) |
| 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 | 330 W |
| Electrical durability | 10,000 cycles at Ue ≤ 440 V; 8,000 cycles at 500–690 V |
| Mechanical durability | 25,000 cycles |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Standard | IEC |
| Dimensions (W × H × D) | 414 × 461 × 396.5 mm |
| Net weight | 61 kg |
| EAN | 8015644571917 |
Frequently Asked Questions
What is the ABB E2B2000 1SDA055851R1 used for?
The ABB 1SDA055851R1 is a SACE Emax E2B 2000 air circuit breaker moving part designed for switching and overcurrent protection in high-current low-voltage electrical distribution systems.
What is the rated current of the ABB E2B2000 1SDA055851R1?
This circuit breaker configuration has a rated current of 2000 A.
Which trip unit is fitted to the ABB 1SDA055851R1?
The breaker is fitted with an ABB PR122/P-LI R2000 electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection.
What does LI protection mean on the PR122/P trip unit?
LI denotes long-time overload protection and instantaneous short-circuit protection, providing essential overcurrent protection for the connected low-voltage distribution system.
Is the ABB 1SDA055851R1 fixed or withdrawable?
The 1SDA055851R1 is the moving part of a withdrawable E2B 2000 circuit breaker for use with the appropriate compatible fixed part in an ABB SACE Emax installation.
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 electronic protection technology with flexible and serviceable switchgear integration.
