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.
1SDA055843R1 ABB E2B 2000 PR122/P-LI 2000 A 3-Pole Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA055843R1 E2B 2000 PR122/P-LI is a 2000 A three-pole withdrawable SACE Emax air circuit breaker moving part with a PR122/P-LI R2000 electronic trip unit providing long-time overload and instantaneous short-circuit protection.
£11,118.47
Why Choose the ABB E2B 2000 PR122/P-LI Air Circuit Breaker?
The ABB E2B 2000 PR122/P-LI, order code 1SDA055843R1, is a high-performance 2000 A three-pole withdrawable air circuit breaker moving part designed for switching and overcurrent protection in low-voltage power distribution systems. Part of the ABB SACE Emax family, it combines robust high-current switching capability with the PR122/P-LI electronic overcurrent release.
The PR122/P-LI R2000 electronic trip unit provides long-time overload and instantaneous short-circuit protection. This LI protection configuration helps safeguard cables, busbars and connected equipment against sustained overloads and severe short-circuit currents while providing electronic protection suited to demanding industrial and infrastructure distribution systems.
The breaker has a rated uninterrupted current of 2000 A, a three-pole configuration and withdrawable moving-part construction. Its E2B performance level provides a rated ultimate and service short-circuit breaking capacity of 42 kA at 415 V AC, while the withdrawable arrangement supports convenient isolation, inspection and servicing when used with the appropriate fixed part.
Key Advantages
- Heavy-duty 2000 A air circuit breaker for low-voltage distribution.
- PR122/P-LI electronic trip unit for reliable electronic overcurrent protection.
- Provides long-time overload and instantaneous short-circuit protection.
- Three-pole withdrawable moving-part construction supports convenient servicing.
- 42 kA ultimate breaking capacity at 415 V AC.
- Four auxiliary contacts and open/closed position indication support signalling and control integration.
Key Features
- ABB SACE Emax E2B series.
- 2000 A rated uninterrupted current.
- Three-pole configuration.
- Withdrawable moving part.
- PR122/P-LI R2000 electronic overcurrent release.
- Long-time overload protection.
- Instantaneous short-circuit protection.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Four auxiliary contacts.
- Open/closed circuit-breaker position indication.
Electronic Protection for High-Current Distribution Systems
The ABB SACE Emax E2B platform is designed for switching and protecting high-current low-voltage distribution circuits. Its electronic trip technology monitors current conditions and commands breaker operation when configured protection thresholds are exceeded, helping protect conductors, busbars and connected electrical equipment against damaging overcurrents.
The PR122/P-LI release combines long-time overload protection with instantaneous short-circuit protection. Together with the E2B's 42 kA short-circuit performance and withdrawable moving-part construction, the 1SDA055843R1 provides a practical solution for switchboards requiring reliable high-current protection and straightforward maintenance access.
Typical Applications
- Industrial low-voltage switchboards.
- Main power distribution panels.
- Manufacturing and process plants.
- Commercial and infrastructure electrical distribution.
- Transformer secondary distribution systems.
- High-current feeder and distribution circuit protection.
Technical Specifications
| Series | SACE Emax E2B |
|---|---|
| ABB order code | 1SDA055843R1 |
| EAN | 8015644571832 |
| Product type | Air circuit breaker moving part |
| Rated uninterrupted current (Iu) | 2000 A |
| Rated operational current (Ie) | 2000 A |
| Number of poles | 3 |
| Execution | Withdrawable moving part |
| Trip unit | PR122/P-LI R2000 |
| Trip unit type | Electronic |
| Protection functions | LI – long-time overload and instantaneous short-circuit protection |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 42 kA |
| Rated service short-circuit breaking capacity (Ics) at 415 V AC | 42 kA |
| Rated short-time withstand current (Icw) | 42 kA for 1 s |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Mechanical endurance | 25,000 cycles |
| Weight | 59 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA055843R1 used for?
It is a 2000 A three-pole withdrawable air circuit breaker moving part designed for switching and overcurrent protection in low-voltage power distribution systems.
What is the rated current of the ABB E2B 2000 PR122/P-LI?
The circuit breaker has a rated uninterrupted current of 2000 A.
What protection functions does the PR122/P-LI provide?
The PR122/P-LI R2000 electronic release provides long-time overload and instantaneous short-circuit protection.
Is the ABB 1SDA055843R1 fixed or withdrawable?
This model is a three-pole withdrawable moving part designed for use with the appropriate ABB SACE Emax fixed part.
What is the short-circuit breaking capacity of the E2B 2000?
This E2B configuration has a rated ultimate short-circuit breaking capacity of 42 kA at 415 V AC.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers combine robust high-current switching, electronic protection and serviceable withdrawable construction for demanding industrial, commercial and infrastructure power distribution systems.
