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1SDA056520R1 ABB E3H3200 PR121/P-LI 3200A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056520R1 E3H3200 is a 3200 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR121/P-LI electronic release providing long-time and instantaneous protection for high-current low-voltage power distribution systems.
£31,955.70
Why Choose the ABB E3H3200 PR121/P-LI 3200A 4P Withdrawable Air Circuit Breaker?
The ABB E3H3200 PR121/P-LI, order code 1SDA056520R1, is a high-performance 3200 A four-pole withdrawable air circuit breaker moving part from the ABB SACE Emax E3 series. Designed for demanding low-voltage power distribution, this E3H configuration combines high-current switching capability with the PR121/P-LI electronic overcurrent release.
The PR121/P-LI release provides long-time and instantaneous protection, helping protect cables, busbars, transformers and connected equipment against sustained overloads and high-level short-circuit faults. This LI protection arrangement provides dependable electronic overcurrent protection for high-capacity distribution systems without the additional short-time or ground-fault functions of LSI and LSIG releases.
With a rated uninterrupted current of 3200 A, a four-pole configuration and a rated operational voltage of 690 V AC, the E3H3200 is suited to substantial three-phase distribution systems requiring neutral switching. Its withdrawable moving-part construction facilitates inspection, servicing and replacement within compatible ABB SACE Emax switchgear.
Key Advantages
- High-performance ABB SACE Emax E3H air circuit breaker moving part.
- 3200 A rated current for high-capacity low-voltage power distribution.
- Four-pole configuration supports three-phase systems requiring neutral switching.
- PR121/P-LI electronic release provides long-time and instantaneous protection.
- High fault-clearing capability with up to 100 kA Icu.
- Withdrawable construction supports efficient maintenance, inspection and replacement.
Key Features
- ABB SACE Emax E3H3200 air circuit breaker platform.
- 3200 A rated uninterrupted current.
- 4-pole configuration.
- PR121/P-LI electronic overcurrent release.
- LI protection: long-time overload and instantaneous short-circuit 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.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E3H3200 provide switching, isolation and electronic overcurrent protection for high-current low-voltage electrical systems. The PR121/P-LI release provides long-time overload and instantaneous short-circuit functions, 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, 3200 A current rating, H-performance breaking capability and electronic LI protection make this E3H3200 configuration suitable for main distribution boards and demanding industrial power systems.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial high-current 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 | 1SDA056520R1 |
| Product type | Air circuit breaker moving part |
| Performance level | H |
| Rated current (In) | 3200 A |
| Rated uninterrupted current (Iu) | 3200 A |
| Rated operational current (Ie) | 3200 A |
| Number of poles | 4P |
| Version | Withdrawable moving part |
| Release | PR121/P-LI |
| Release type | Electronic overcurrent release |
| Protection functions | L, I |
| Current type | AC |
| 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 |
| Mechanical durability | 20,000 cycles |
| Electrical durability | 6,000 cycles at up to 440 V AC; 5,000 cycles at 500–690 V AC |
| Power loss | 570 W |
Frequently Asked Questions
What is the ABB 1SDA056520R1 used for?
It is a 3200 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 E3H3200?
The breaker is fitted with an ABB PR121/P-LI electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection.
What is the rated current of ABB 1SDA056520R1?
The E3H3200 has a rated uninterrupted current of 3200 A and uses a four-pole configuration.
What is the breaking capacity of the ABB E3H3200?
The E3H3200 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 1SDA056520R1 fixed or withdrawable?
The 1SDA056520R1 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.
