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1SDA056490R1 ABB E3H2500 PR121/P-LSIG 2500A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056490R1 E3H2500 is a 2500 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR121/P-LSIG electronic release providing comprehensive LSIG protection for high-current low-voltage power distribution systems.
£24,310.42
Why Choose the ABB E3H2500 PR121/P-LSIG 2500A 4P Withdrawable Air Circuit Breaker?
The ABB E3H2500 PR121/P-LSIG, order code 1SDA056490R1, is a high-performance 2500 A four-pole withdrawable air circuit breaker moving part 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 high-current switching capability with the PR121/P-LSIG R2500 electronic overcurrent release.
The PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault protection, helping protect cables, busbars, transformers and connected equipment against overloads, short circuits and earth faults. The LSIG protection functions make this breaker particularly suitable for coordinated distribution systems where comprehensive electronic fault protection is required.
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 up to 100 kA, while the withdrawable construction supports efficient inspection, servicing and replacement within compatible SACE Emax switchgear.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker moving part.
- 2500 A rated current for high-current low-voltage power distribution.
- Four-pole configuration for three-phase systems requiring neutral switching.
- PR121/P-LSIG R2500 electronic release provides comprehensive LSIG protection.
- High fault-clearing performance with 100 kA Icu at 220–500 V AC.
- Withdrawable construction supports convenient maintenance, inspection and replacement.
Key Features
- ABB SACE Emax E3H2500 air circuit breaker platform.
- 2500 A rated uninterrupted current.
- 4-pole configuration.
- PR121/P-LSIG R2500 electronic overcurrent release.
- LSIG protection: long-time, short-time, instantaneous and ground-fault functions.
- 690 V AC rated operational voltage.
- 1000 V rated insulation voltage.
- 12 kV rated impulse withstand voltage.
- Withdrawable moving-part version for compatible SACE Emax switchgear.
Comprehensive 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 PR121/P-LSIG release provides long-time, short-time, instantaneous and ground-fault functions to protect distribution equipment against a broad range of abnormal current conditions.
The withdrawable SACE Emax construction is particularly suitable for switchboards where maintainability and operational flexibility are important. Its four-pole design, comprehensive LSIG protection and high short-circuit performance make the E3H2500 suitable for main distribution boards, industrial switchgear and other critical high-current 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.
- Withdrawable switchgear requiring comprehensive LSIG protection.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056490R1 |
| EAN | 8015644578305 |
| Product type | Air circuit breaker moving part |
| Sub-type | E3 |
| 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 |
| Release | PR121/P-LSIG |
| Release type | Electronic |
| Protection functions | L, S, I, G |
| 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 |
| 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 | 350 W |
| Dimensions (W × H × D) | 558 × 461 × 396.5 mm |
| Net weight | 81 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA056490R1 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 PR121/P-LSIG electronic overcurrent release, providing long-time, short-time, instantaneous and ground-fault protection.
What is the rated current of ABB 1SDA056490R1?
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 1SDA056490R1 fixed or withdrawable?
The 1SDA056490R1 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.
