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1SDA056565R1 ABB E3V 1250 PR122/P-LSIG 1250A 3P Fixed Air Circuit Breaker
ABB 1SDA056565R1 E3V 1250 PR122/P-LSIG is a 1250 A three-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and electronic LSIG protection for demanding low-voltage power distribution systems.
£10,757.36
Why Choose the ABB E3V 1250 PR122/P-LSIG Air Circuit Breaker?
The ABB E3V 1250 PR122/P-LSIG, order code 1SDA056565R1, is a high-performance fixed air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the proven ABB SACE Emax E3 series, this three-pole breaker combines a 1250 A rated current with the advanced PR122/P-LSIG electronic overcurrent release.
The PR122/P-LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection, helping protect electrical installations against overloads, short circuits and ground faults. The E3V performance level is designed for applications requiring high short-circuit capability, reliable selectivity and flexible electronic protection in industrial and commercial power distribution.
This version is configured as a 3-pole fixed breaker with rear horizontal terminals and a PR122/P-LSIG R1250 release. It is also equipped with four auxiliary contacts and circuit-breaker open/closed position indication, supporting effective integration into switchboards and electrical control systems.
Key Advantages
- High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
- 1250 A rated current for substantial industrial and commercial electrical loads.
- PR122/P-LSIG electronic protection release with comprehensive overcurrent and earth-fault protection.
- 3-pole fixed configuration for permanent installation in switchboards.
- Rear horizontal terminals support practical switchboard connection arrangements.
- Four auxiliary contacts and open/closed breaker position indication for monitoring and control.
Key Features
- ABB SACE Emax E3V air circuit breaker.
- 1250 A rated current.
- 3-pole configuration.
- PR122/P-LSIG R1250 electronic overcurrent release.
- LSIG protection functions: long-time, short-time, instantaneous and earth-fault.
- Fixed (F) breaker version.
- Rear horizontal (HR) terminals.
- Fitted with four auxiliary contacts.
- Open/closed position indication for circuit-breaker status monitoring.
- Designed for demanding low-voltage industrial power distribution applications.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB E3V provide switching and protection for high-current low-voltage distribution circuits. The PR122/P-LSIG electronic release monitors electrical conditions and provides configurable protection against overloads, short circuits and earth faults, helping maintain reliable operation of critical electrical installations.
The fixed SACE Emax configuration is suited to switchboards where a permanently installed circuit breaker is required. Rear horizontal terminals simplify integration with suitable busbar and conductor arrangements, while auxiliary contacts provide circuit-breaker status information for supervisory, signalling and automation systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Generator and transformer distribution systems.
- Power control centres and fixed switchgear assemblies.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| Order code | 1SDA056565R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 1250 A |
| Number of poles | 3P |
| Release | PR122/P-LSIG R1250 |
| Release type | Electronic overcurrent release |
| Protection functions | LSIG – long-time, short-time, instantaneous and earth-fault |
| Version | Fixed |
| Terminal arrangement | Rear horizontal |
| Auxiliary contacts | 4 |
| Position indication | Open / closed |
| EAN | 8015644579050 |
| Weight | 72 kg |
Frequently Asked Questions
What is the ABB 1SDA056565R1 used for?
It is a 1250 A air circuit breaker used for switching and protecting low-voltage electrical distribution systems against overload, short-circuit and earth-fault conditions.
What protection release does the ABB 1SDA056565R1 use?
The breaker uses an ABB PR122/P-LSIG R1250 electronic release, providing long-time, short-time, instantaneous and earth-fault protection functions.
How many poles does the ABB E3V 1250 1SDA056565R1 have?
This version is a 3-pole air circuit breaker with a rated current of 1250 A.
Is the ABB 1SDA056565R1 fixed or withdrawable?
The 1SDA056565R1 is a fixed-version SACE Emax E3V circuit breaker with rear horizontal terminals.
What auxiliary contacts are included with this breaker?
The breaker is fitted with four auxiliary contacts and provides open/closed circuit-breaker position indication for signalling and monitoring.
Trusted ABB Power Distribution Protection
ABB SACE Emax air circuit breakers are engineered for dependable protection and switching in demanding low-voltage power distribution systems, combining advanced electronic protection with robust construction and flexible switchboard integration.
