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1SDA056483R1 ABB E3H2500 PR122/P-LI 2500A 3P Withdrawable Air Circuit Breaker Moving Part
ABB 1SDA056483R1 is a SACE Emax E3H 2500 A three-pole withdrawable air circuit breaker moving part with a PR122/P-LI electronic release providing long-time and instantaneous protection for high-current low-voltage power distribution.
£19,657.15
Why Choose the ABB E3H2500 PR122/P-LI 2500A 3P Withdrawable Air Circuit Breaker Moving Part?
The ABB E3H2500 PR122/P-LI, order code 1SDA056483R1, is a high-performance SACE Emax air circuit breaker moving part designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax E3H series, this three-pole withdrawable breaker has a rated uninterrupted current of 2500 A and incorporates the advanced PR122/P-LI electronic overcurrent release.
The PR122/P-LI release provides long-time and instantaneous overcurrent protection, helping protect electrical distribution equipment against sustained overloads and severe short-circuit faults. The electronic trip technology offers dependable protection for high-current industrial switchboards, main distribution systems and other critical electrical installations.
This version is supplied as the withdrawable moving part of the Emax circuit breaker system and is fitted with four auxiliary contacts together with open/closed circuit-breaker position indication. Its E3H performance level provides an ultimate short-circuit breaking capacity of up to 100 kA, while the withdrawable format facilitates isolation, servicing and replacement within suitably configured switchgear.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker moving part.
- 2500 A rated uninterrupted current for high-current power distribution.
- Three-pole withdrawable configuration for three-phase electrical systems.
- Advanced PR122/P-LI electronic overcurrent release.
- Long-time and instantaneous protection against overload and short-circuit conditions.
- 100 kA ultimate short-circuit breaking capacity at common low-voltage system voltages up to 500 V AC.
- 85 kA service short-circuit breaking capacity across the rated voltage range.
- Withdrawable design supports convenient isolation and switchboard maintenance.
Key Features
- ABB SACE Emax E3H series.
- 2500 A rated uninterrupted current.
- 3-pole withdrawable moving part.
- PR122/P-LI electronic release.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- 75 kA short-time withstand current for 1 s.
- Four auxiliary contacts for signalling and control.
- Open/closed circuit-breaker position indication.
Reliable LI Protection for High-Current Distribution
Air circuit breakers such as the ABB SACE Emax E3H provide switching and overcurrent protection for major low-voltage distribution systems. The E3H performance level combines high short-circuit interruption capability with robust construction, helping protect conductors, switchboards and connected equipment when severe electrical faults occur.
The PR122/P-LI electronic release provides long-time protection against sustained overloads together with instantaneous protection against high-level short circuits. Combined with the 2500 A E3H breaker frame and withdrawable moving-part construction, the 1SDA056483R1 provides a serviceable protection solution for demanding industrial, commercial and infrastructure power systems.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plants.
- Commercial and infrastructure electrical installations.
- Transformer secondary protection.
- Main incoming circuit-breaker applications.
- High-current outgoing feeder protection.
- Withdrawable switchgear requiring maintainable circuit protection.
Technical Specifications
| Series | SACE Emax E3H |
|---|---|
| ABB order code | 1SDA056483R1 |
| Product type | Air circuit breaker moving part |
| Frame / performance level | E3H |
| Rated current (In) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Number of poles | 3 |
| Current type | AC |
| Configuration | Withdrawable moving part |
| Trip unit | PR122/P-LI |
| Release type | Electronic |
| Protection functions | Long-time (L) and instantaneous (I) |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| Ultimate short-circuit breaking capacity (Icu) | 100 kA at 220–500 V AC; 85 kA at 660–690 V AC |
| Service short-circuit breaking capacity (Ics) | 85 kA at 220–690 V AC |
| Short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Net weight | 77 kg |
| Standard | IEC |
| EAN | 8015644578237 |
Frequently Asked Questions
What is the ABB 1SDA056483R1?
The ABB 1SDA056483R1 is a SACE Emax E3H 2500 A three-pole withdrawable air circuit breaker moving part fitted with a PR122/P-LI electronic overcurrent release.
What protection functions does the PR122/P-LI provide?
The PR122/P-LI electronic release provides long-time overload protection and instantaneous short-circuit protection.
What is the rated current of this Emax circuit breaker?
The E3H2500 has a rated uninterrupted current of 2500 A, making it suitable for high-current low-voltage power distribution systems.
Is the ABB 1SDA056483R1 fixed or withdrawable?
This model is a withdrawable moving part intended for use with the appropriate SACE Emax fixed part in a compatible withdrawable switchgear assembly.
What is the breaking capacity of the ABB E3H2500?
The E3H breaker has an ultimate short-circuit breaking capacity of up to 100 kA at 220–500 V AC and 85 kA at 660–690 V AC.
Trusted Protection for Critical Power Systems
ABB SACE Emax air circuit breakers combine high short-circuit performance, electronic overcurrent protection and serviceable switchgear construction to provide dependable protection for demanding industrial, commercial and infrastructure power distribution systems.
