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1SDA056476R1 ABB E3H2500 PR122/P-LSI 2500A 4P Fixed Air Circuit Breaker
ABB 1SDA056476R1 E3H2500 is a 2500 A four-pole fixed SACE Emax air circuit breaker with rear horizontal terminals and a PR122/P-LSI R2500 electronic release providing LSI protection for high-current low-voltage power distribution systems.
£21,160.10
Why Choose the ABB E3H2500 PR122/P-LSI 2500A 4P Fixed Air Circuit Breaker?
The ABB E3H2500 PR122/P-LSI, order code 1SDA056476R1, is a high-performance 2500 A four-pole fixed air circuit breaker from the ABB SACE Emax E3 series, designed for switching and protection in demanding low-voltage industrial and commercial power distribution systems. This E3H configuration combines robust fixed construction with the PR122/P-LSI R2500 electronic overcurrent release.
The PR122/P-LSI release provides long-time, short-time and instantaneous protection, helping protect cables, busbars, transformers and connected equipment against overloads and short circuits. Its electronic protection platform provides adjustable protection characteristics suitable for selective and coordinated high-current distribution systems.
With a rated current of 2500 A, a four-pole configuration and a rated operational voltage of 690 V AC, the E3H2500 is suitable for substantial three-phase distribution systems requiring neutral switching. Its H-performance design provides an ultimate short-circuit breaking capacity of 100 kA at 220–500 V AC, while rear horizontal terminals support practical switchboard integration.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker.
- 2500 A rated current for high-current low-voltage power distribution.
- Four-pole configuration for three-phase systems requiring neutral switching.
- PR122/P-LSI R2500 electronic release provides comprehensive overload and short-circuit protection.
- High fault-clearing performance with 100 kA Icu at 220–500 V AC.
- Fixed construction with rear horizontal terminals for switchboard integration.
Key Features
- ABB SACE Emax E3H2500 circuit breaker platform.
- 2500 A rated uninterrupted current.
- 4-pole configuration.
- PR122/P-LSI R2500 electronic overcurrent release.
- LSI protection: long-time, short-time and instantaneous functions.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Four auxiliary contacts with circuit-breaker open/closed position indication.
Advanced 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-LSI release monitors circuit conditions and initiates tripping according to configured thresholds when overload, short-time short-circuit or instantaneous short-circuit conditions occur.
The fixed SACE Emax construction is particularly suitable for switchboards requiring a permanently installed high-current protection device. Its four-pole design, advanced LSI electronic protection, high short-circuit capability and rear horizontal terminals make the E3H2500 suitable for main distribution boards, industrial switchgear and critical power distribution installations.
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.
- High-current fixed switchgear installations.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056476R1 |
| EAN | 8015644578169 |
| Product type | Air circuit breaker |
| 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 | Fixed |
| Terminal arrangement | Rear horizontal |
| Release | PR122/P-LSI R2500 |
| Release type | Electronic overcurrent release |
| Protection functions | L, S, I |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| 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 |
| Current type | AC |
| Auxiliary contacts | 4 |
| Position indication | Circuit breaker open / closed |
| Mechanical durability | 20,000 cycles |
| Electrical durability | 8,000 cycles at up to 440 V AC; 7,000 cycles at 500–690 V AC |
| Power loss | 205 W |
| Dimensions (W × H × D) | 530 × 418 × 302 mm |
| Net weight | 76 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA056476R1 used for?
It is a 2500 A four-pole fixed SACE Emax air circuit breaker 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-LSI R2500 electronic overcurrent release, providing long-time, short-time and instantaneous protection.
What is the rated current of ABB 1SDA056476R1?
The E3H2500 has a rated 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 1SDA056476R1 fixed or withdrawable?
The 1SDA056476R1 is a fixed-version SACE Emax E3H2500 air circuit breaker equipped with rear horizontal terminals.
Trusted Protection from ABB SACE
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining advanced electronic protection, high fault-clearing performance and robust construction for industrial and commercial electrical systems.
