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1SDA056776R1 ABB E3L2500 PR121/P-LI 2500A 4-Pole Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA056776R1 E3L2500 PR121/P-LI is a 2500 A four-pole SACE Emax withdrawable air circuit breaker moving part with PR121/P-LI electronic overload and instantaneous short-circuit protection.
£22,866.70
Why Choose the ABB E3L2500 PR121/P-LI 2500A Air Circuit Breaker Moving Part?
The ABB E3L2500 PR121/P-LI, order code 1SDA056776R1, is a high-performance SACE Emax moving part for a withdrawable air circuit breaker designed for switching and protection in high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E3L series, this four-pole configuration combines a 2500 A rated current with a PR121/P-LI R2500 electronic overcurrent release.
The PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection, helping safeguard switchboards, busbars, cables and connected electrical equipment against damaging overcurrent conditions. The moving part is also fitted with four auxiliary contacts and circuit-breaker open/closed position indication for integration with switchboard control and signalling systems.
Designed as the moving portion of a four-pole withdrawable E3L circuit breaker, the 1SDA056776R1 is intended for use with the corresponding ABB SACE Emax fixed part. Its withdrawable architecture facilitates inspection, maintenance and replacement, while the four-pole arrangement enables switching of three phase conductors together with the neutral conductor in suitable power distribution systems.
Key Advantages
- Genuine ABB SACE Emax E3L moving part for withdrawable circuit-breaker assemblies.
- 2500 A rated current for high-current low-voltage distribution systems.
- Four-pole construction for three-phase and neutral distribution circuits.
- PR121/P-LI R2500 electronic overcurrent release.
- LI functions provide long-time overload and instantaneous short-circuit protection.
- Withdrawable construction supports efficient inspection, servicing and replacement.
- Fitted with four auxiliary contacts and circuit-breaker open/closed position indication.
Key Features
- ABB SACE Emax E3L series.
- 2500 A rated uninterrupted current.
- Four-pole construction.
- Withdrawable moving-part execution.
- PR121/P-LI R2500 electronic trip unit.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- Four auxiliary contacts.
- Circuit-breaker open/closed position indication.
- Designed for use with the corresponding E3L fixed part in withdrawable switchgear.
Reliable Protection for High-Power Distribution Systems
ABB SACE Emax air circuit breakers are designed to provide dependable switching and overcurrent protection for high-current low-voltage distribution systems. The PR121/P electronic release monitors circuit current and provides protection against sustained overloads and severe short circuits, helping protect switchboards, feeders, busbars and connected electrical equipment.
The withdrawable E3L arrangement separates the circuit breaker into a removable moving part and a fixed part installed in the switchboard. This architecture is particularly valuable in industrial and infrastructure applications where maintenance accessibility, reduced servicing time and straightforward circuit-breaker replacement are important operational requirements.
Typical Applications
- Main incoming protection in low-voltage switchboards.
- Industrial power distribution systems.
- Transformer secondary distribution.
- High-current feeder protection.
- Manufacturing and process plants.
- Large commercial and infrastructure electrical installations.
- Four-wire distribution systems requiring neutral switching.
- Withdrawable switchgear requiring maintainable circuit-breaker assemblies.
Technical Specifications
| Series | SACE Emax E3L |
|---|---|
| ABB order code | 1SDA056776R1 |
| Product type | Air circuit breaker moving part |
| Rated uninterrupted current | 2500 A |
| Number of poles | 4 |
| Execution | Withdrawable moving part |
| Protection release | PR121/P-LI R2500 |
| Protection functions | Long-time and instantaneous (LI) |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Net weight | 96 kg |
| EAN | 8015644581169 |
Frequently Asked Questions
What is the ABB 1SDA056776R1?
The ABB 1SDA056776R1 is the moving part of a four-pole SACE Emax E3L withdrawable air circuit breaker, rated at 2500 A and fitted with a PR121/P-LI R2500 electronic overcurrent release.
What protection functions does the PR121/P-LI provide?
The PR121/P-LI electronic release provides long-time overload and instantaneous short-circuit protection, represented by the LI designation.
What is the rated current of the ABB E3L2500 1SDA056776R1?
This E3L2500 moving part has a rated uninterrupted current of 2500 A.
How many poles does the ABB 1SDA056776R1 have?
The 1SDA056776R1 has four poles, making it suitable for systems requiring switching of three phase conductors together with the neutral conductor.
Is the ABB 1SDA056776R1 a complete fixed circuit breaker?
No. The 1SDA056776R1 is the moving part for a withdrawable E3L circuit breaker and is designed for use with the appropriate fixed part installed in the switchboard.
Trusted Protection for Industrial Power Distribution
ABB SACE Emax circuit breakers provide robust high-current protection and flexible switchgear integration, with withdrawable configurations supporting efficient servicing and dependable operation in demanding industrial and infrastructure power distribution systems.
