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1SDA056780R1 ABB E3L2500 PR122/P-LSI 2500 A 4-Pole Withdrawable Air Circuit Breaker
ABB 1SDA056780R1 E3L2500 is a 2500 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR122/P-LSI R2500 electronic release providing long-time, short-time and instantaneous overcurrent protection.
£23,521.79
Why Choose the ABB E3L2500 PR122/P-LSI Air Circuit Breaker?
The ABB E3L2500 PR122/P-LSI, order code 1SDA056780R1, is a high-performance SACE Emax air circuit breaker moving part designed for switching and overcurrent protection in demanding low-voltage power-distribution systems. Part of the ABB SACE Emax E3 series, this four-pole withdrawable configuration combines a 2500 A rated current with the PR122/P-LSI R2500 electronic overcurrent release.
The PR122/P-LSI release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. These LSI functions help protect conductors, switchboards and downstream electrical equipment against sustained overloads and short-circuit faults while supporting selective protection and coordinated fault clearing across complex distribution networks.
This model is the four-pole withdrawable moving part of the E3L2500 circuit breaker and is designed for use with the corresponding ABB SACE Emax fixed part. It is supplied with four auxiliary contacts and open/closed circuit-breaker position indication, providing useful status information for switchboard monitoring, signalling and control systems.
Key Advantages
- High-current 2500 A SACE Emax air circuit breaker moving part.
- PR122/P-LSI R2500 electronic release provides comprehensive LSI overcurrent protection.
- Long-time, short-time and instantaneous protection supports coordinated fault clearing.
- Four-pole configuration supports three-phase systems requiring neutral switching.
- Withdrawable construction facilitates inspection, maintenance and servicing.
- E3L performance level is designed for demanding high-current low-voltage distribution systems.
- Four auxiliary contacts and open/closed indication support switchboard signalling and control.
Key Features
- ABB SACE Emax E3L2500 air circuit breaker moving part.
- 2500 A rated current.
- Four-pole withdrawable version.
- PR122/P-LSI R2500 electronic overcurrent release.
- L protection: long-time overload protection.
- S protection: short-time short-circuit protection.
- I protection: instantaneous short-circuit protection.
- Designed for installation with the corresponding SACE Emax fixed part.
- Four auxiliary contacts for signalling and control.
- Integrated circuit-breaker open/closed position indication.
- Withdrawable construction supports serviceability in critical switchboards.
Reliable LSI Protection for High-Current Power Distribution
The ABB SACE Emax E3L2500 is designed for switching and protection at main incomer and feeder levels within substantial low-voltage distribution systems. Its PR122/P-LSI electronic release provides long-time protection against sustained overload conditions, short-time protection for coordinated fault clearing and instantaneous intervention against severe short-circuit currents.
The combination of a 2500 A current rating, four-pole construction and withdrawable design makes the 1SDA056780R1 particularly suitable for switchboards where both high electrical performance and serviceability are required. When installed with the corresponding fixed part, the moving circuit breaker can be withdrawn for inspection or maintenance, helping simplify servicing within critical power-distribution assemblies.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power-distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary and main incomer protection.
- High-current feeder protection.
- Withdrawable switchgear and power-distribution assemblies.
Technical Specifications
| Product group | New Emax |
|---|---|
| Series | SACE Emax E3 |
| ABB order code | 1SDA056780R1 |
| Extended product type | E3L2500PR122/P-LSIIn=2500A4pWMP |
| Product type | Air circuit breaker moving part |
| Frame | E3 |
| Performance level | L |
| Rated current (In) | 2500 A |
| Number of poles | 4P |
| Release | PR122/P-LSI R2500 |
| Release type | Electronic overcurrent release |
| Protection functions | LSI — long-time, short-time and instantaneous |
| Long-time overload protection | Yes |
| Short-time short-circuit protection | Yes |
| Instantaneous short-circuit protection | Yes |
| Version | Withdrawable moving part |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| Product net weight | 96 kg |
| EAN | 8015644581206 |
| HS code | 85362090 |
Frequently Asked Questions
What is the ABB 1SDA056780R1 used for?
The ABB 1SDA056780R1 is a 2500 A four-pole SACE Emax air circuit breaker moving part designed for switching and overcurrent protection in high-current low-voltage power-distribution systems.
What protection release is fitted to the ABB E3L2500?
This circuit breaker is fitted with the ABB PR122/P-LSI R2500 electronic overcurrent release, providing long-time overload, short-time short-circuit and instantaneous short-circuit protection.
What is the rated current of the ABB E3L2500 PR122/P-LSI?
The circuit breaker has a rated current of 2500 A.
Is the ABB 1SDA056780R1 fixed or withdrawable?
The 1SDA056780R1 is a four-pole withdrawable moving part designed for use with the corresponding ABB SACE Emax fixed part.
What does LSI mean on the PR122/P release?
LSI denotes long-time overload, short-time short-circuit and instantaneous short-circuit protection, providing coordinated electronic protection against a range of overcurrent and fault conditions.
Trusted Protection for Industrial Power Systems
ABB SACE Emax air circuit breakers provide dependable switching and electronic protection for demanding low-voltage distribution systems, combining high current capability, advanced LSI protection and service-friendly withdrawable construction.
