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1SDA056491R1 ABB E3H2500 PR122/P-LI 2500A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056491R1 E3H2500 is a 2500 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR122/P-LI R2500 electronic release providing long-time and instantaneous protection for high-current low-voltage power distribution systems.
£22,945.31
Why Choose the ABB E3H2500 PR122/P-LI 2500A 4P Withdrawable Air Circuit Breaker?
The ABB E3H2500 PR122/P-LI, order code 1SDA056491R1, is a high-performance 2500 A four-pole withdrawable air circuit breaker moving part from the ABB SACE Emax E3 series. Designed for demanding low-voltage power distribution, it combines the E3H high short-circuit performance level with the PR122/P-LI R2500 electronic overcurrent release.
The PR122/P-LI release provides long-time and instantaneous protection, helping protect cables, busbars, transformers and connected equipment against overloads and high-level short-circuit faults. Its electronic release technology provides adjustable protection for high-current distribution systems where dependable circuit protection and selective coordination are important.
With a rated uninterrupted current of 2500 A, a four-pole configuration and operation up to 690 V AC, the E3H2500 is suited to substantial three-phase distribution systems requiring neutral switching. The withdrawable moving-part construction facilitates maintenance and replacement within compatible SACE Emax switchgear, while four auxiliary contacts provide circuit-breaker open/closed position signalling.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker moving part.
- 2500 A rated uninterrupted current for high-current power distribution.
- Four-pole configuration supports three-phase systems requiring neutral switching.
- PR122/P-LI R2500 electronic release provides long-time and instantaneous protection.
- High fault-clearing capability with 100 kA Icu at 400 V AC.
- Withdrawable construction supports convenient maintenance, inspection and replacement.
Key Features
- ABB SACE Emax E3H2500 circuit breaker platform.
- 2500 A rated uninterrupted current.
- 4-pole configuration.
- PR122/P-LI R2500 electronic overcurrent release.
- LI protection: long-time overload and instantaneous short-circuit functions.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 100 kA ultimate short-circuit breaking capacity at 400 V AC.
- Four auxiliary contacts for circuit-breaker open/closed position signalling.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H2500 provide switching, isolation and electronic overcurrent protection for high-current low-voltage electrical systems. The PR122/P-LI release provides long-time overload and instantaneous short-circuit protection, enabling the breaker to respond to sustained overcurrent and severe fault conditions.
The withdrawable SACE Emax construction is particularly suitable for switchboards where maintainability and operational flexibility are important. Its four-pole arrangement, 2500 A current rating, H-level breaking performance and PR122/P electronic protection make this E3H2500 configuration suitable for main distribution boards and demanding industrial power systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Main incomer and outgoing feeder protection.
- Three-phase systems requiring neutral switching.
- Transformer secondary protection.
- Withdrawable high-current switchgear installations.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056491R1 |
| EAN | 8015644578312 |
| Product type | Air circuit breaker moving part |
| Short-circuit performance level | H |
| Rated current (In) | 2500 A |
| Rated uninterrupted current (Iu) | 2500 A |
| Rated operational current (Ie) | 2500 A |
| Number of poles | 4P |
| Version | Withdrawable moving part |
| Release | PR122/P-LI R2500 |
| Release type | Electronic |
| Protection functions | L, I |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated ultimate short-circuit breaking capacity (Icu) | 100 kA at 220–500 V AC; 85 kA at 660–690 V AC |
| Rated service short-circuit breaking capacity (Ics) | 85 kA at 220–690 V AC |
| Rated short-time withstand current (Icw) | 75 kA for 1 s; 65 kA for 3 s |
| Instantaneous short-circuit protection setting range | 3750–37500 A |
| Degree of protection | IP2X |
| Auxiliary contacts | 4 (2 NO + 2 NC) |
| Position indication | Circuit breaker open / closed |
| Optional motor operator | Yes |
| Net weight | 96 kg |
| Reference standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA056491R1 used for?
It is a 2500 A four-pole withdrawable SACE Emax air circuit breaker moving part designed for switching and protecting high-current low-voltage power distribution circuits.
What protection release is fitted to the ABB E3H2500?
The breaker is fitted with an ABB PR122/P-LI R2500 electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection.
What is the rated current of ABB 1SDA056491R1?
The E3H2500 has a rated uninterrupted current of 2500 A and uses a four-pole configuration.
What is the breaking capacity of the ABB E3H2500?
The E3H2500 H-performance breaker provides an ultimate short-circuit breaking capacity of 100 kA at 220–500 V AC and 85 kA at 660–690 V AC.
Is the ABB 1SDA056491R1 fixed or withdrawable?
The 1SDA056491R1 is a withdrawable moving-part version designed for use within compatible ABB SACE Emax withdrawable switchgear.
Trusted Protection from ABB SACE
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining electronic protection, high fault-clearing performance and withdrawable switchgear flexibility for industrial and commercial electrical systems.
