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1SDA055976R1 ABB E2S1250 1250 A 4-Pole Withdrawable Air Circuit Breaker
ABB E2S1250 1SDA055976R1 is a 1250 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR121/P-LI electronic trip unit for overload and instantaneous short-circuit protection.
£10,274.27
Why Choose the ABB E2S1250 1SDA055976R1 Air Circuit Breaker?
The ABB E2S1250 1SDA055976R1 is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for protection and switching in high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2 series, this four-pole withdrawable breaker combines a 1250 A rated current with the electronic PR121/P-LI trip unit for dependable overload and instantaneous short-circuit protection.
Designed for demanding industrial and commercial power distribution applications, the E2S1250 provides reliable circuit protection while its withdrawable construction supports convenient inspection, replacement and maintenance when installed with the appropriate Emax fixed part. The PR121/P-LI electronic overcurrent release provides long-time and instantaneous protection functions for effective protection against overload and severe short-circuit conditions.
This model is a four-pole withdrawable moving part with manual operation and is supplied with four auxiliary contacts plus open/closed circuit-breaker position indication. Its 1250 A current rating and E2S performance class make it suitable for substantial industrial and commercial distribution systems requiring maintainable high-current circuit protection.
Key Advantages
- High-current 1250 A air circuit breaker moving part for low-voltage power distribution.
- PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
- Four-pole configuration supports switching and protection in three-phase systems with neutral.
- Withdrawable moving-part construction supports convenient inspection and maintenance.
- Manual operating mechanism for straightforward breaker operation.
- Supplied with four auxiliary contacts and open/closed position indication.
Key Features
- ABB SACE Emax E2S1250 air circuit breaker.
- 1250 A rated current.
- 4-pole configuration.
- PR121/P-LI electronic overcurrent release.
- LI protection functions: long-time and instantaneous.
- Withdrawable moving part (W MP) execution.
- Manual operating mechanism.
- Four auxiliary contacts.
- Open/closed circuit-breaker position indication.
- Designed for demanding low-voltage power distribution applications.
Reliable Protection for High-Current Distribution Systems
Air circuit breakers such as the ABB E2S1250 provide switching and protection at the main and distribution levels of low-voltage electrical installations. Their high current capability and electronic protection technology make them particularly suitable for switchboards supplying industrial machinery, infrastructure, commercial facilities and other substantial electrical loads.
The PR121/P-LI electronic trip unit provides long-time protection against sustained overloads together with instantaneous protection against severe short-circuit currents. Combined with the withdrawable SACE Emax platform, this configuration provides dependable electrical protection while allowing the moving breaker section to be withdrawn from its compatible fixed part for servicing or replacement.
Typical Applications
- Main low-voltage switchboards and distribution boards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary protection.
- High-current feeder circuits and machinery supplies.
Technical Specifications
| Series | SACE Emax E2 |
|---|---|
| ABB order code | 1SDA055976R1 |
| Product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Rated current (In) | 1250 A |
| Number of poles | 4 |
| Execution | Withdrawable moving part |
| Operating mechanism | Manual |
| Trip unit | PR121/P-LI electronic overcurrent release |
| Protection functions | L, I |
| Short-circuit performance level | S |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Product net weight | 73 kg |
| EAN | 8015644573164 |
| Installation | Withdrawable low-voltage switchboard assembly |
Frequently Asked Questions
What is the ABB E2S1250 1SDA055976R1 used for?
It is a 1250 A air circuit breaker moving part designed for switching and protection of high-current low-voltage electrical distribution systems.
What trip unit is fitted to the ABB 1SDA055976R1?
This circuit breaker is equipped with an ABB PR121/P-LI electronic overcurrent release.
What protection functions does the PR121/P-LI provide?
The LI configuration provides long-time overload and instantaneous short-circuit protection.
What is the rated current of this circuit breaker?
The ABB E2S1250 1SDA055976R1 has a rated current of 1250 A.
Is the ABB 1SDA055976R1 fixed or withdrawable?
This model is a four-pole withdrawable moving part designed for use with the corresponding SACE Emax E2 fixed part.
Trusted ABB Power Distribution Technology
ABB SACE Emax air circuit breakers are engineered for dependable protection and control of low-voltage power distribution systems, combining electronic protection with maintainable withdrawable construction for demanding industrial and commercial installations.
