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1SDA056521R1 ABB E3H3200 PR121/P-LSI 3200A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056521R1 E3H3200 is a 3200 A four-pole withdrawable SACE Emax air circuit breaker moving part with a PR121/P-LSI electronic release providing long-time, short-time and instantaneous protection for high-current low-voltage power distribution systems.
£32,503.12
Why Choose the ABB E3H3200 PR121/P-LSI 3200A 4P Withdrawable Air Circuit Breaker?
The ABB E3H3200 PR121/P-LSI, order code 1SDA056521R1, 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, it combines the E3H high-performance breaker platform with the PR121/P-LSI electronic overcurrent release.
The PR121/P-LSI release provides long-time, short-time and instantaneous protection, helping protect cables, busbars, transformers and connected equipment against overloads and short-circuit faults. The LSI protection arrangement supports coordinated protection in high-current distribution systems where adjustable overload and short-circuit protection are required.
With a rated current of 3200 A and a four-pole configuration, the E3H3200 is suited to substantial three-phase distribution systems requiring neutral switching. Its withdrawable moving-part construction is designed for compatible ABB SACE Emax fixed parts, supporting convenient inspection, servicing and replacement in low-voltage switchboards.
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-LSI electronic release provides long-time, short-time and instantaneous protection.
- LSI protection supports coordinated overload and short-circuit protection strategies.
- Withdrawable construction supports efficient maintenance, inspection and replacement.
Key Features
- ABB SACE Emax E3H3200 air circuit breaker platform.
- 3200 A rated current.
- 4-pole configuration.
- PR121/P-LSI electronic overcurrent release.
- LSI protection: long-time, short-time and instantaneous functions.
- Withdrawable moving-part version.
- Designed for use with a compatible ABB SACE Emax fixed part.
- Suitable for high-current three-phase low-voltage distribution.
- Part of ABB's New Emax air circuit breaker range.
Coordinated 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-LSI release combines long-time overload, short-time short-circuit and instantaneous short-circuit protection to respond to different levels and durations of overcurrent 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 and LSI electronic protection make this E3H3200 configuration suitable for main distribution boards, industrial switchgear and other substantial power distribution installations.
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 switchgear requiring LSI electronic protection.
Technical Specifications
| Series | SACE Emax E3 |
|---|---|
| ABB order code | 1SDA056521R1 |
| ABB product group | 310513-New Emax |
| Product type | Air circuit breaker moving part |
| Frame | E3 |
| Performance level | H |
| Rated current (In) | 3200 A |
| Number of poles | 4P |
| Version | Withdrawable moving part |
| Release | PR121/P-LSI |
| Release type | Electronic overcurrent release |
| Protection functions | L, S, I |
| Long-time overload protection | Yes |
| Short-time short-circuit protection | Yes |
| Instantaneous short-circuit protection | Yes |
| Application | Low-voltage power distribution |
Frequently Asked Questions
What is the ABB 1SDA056521R1 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-LSI electronic overcurrent release, providing long-time, short-time and instantaneous protection.
What is the rated current of ABB 1SDA056521R1?
The E3H3200 has a rated current of 3200 A and uses a four-pole configuration.
What protection functions does the PR121/P-LSI provide?
The PR121/P-LSI provides L, S and I protection functions for long-time overload, short-time short-circuit and instantaneous short-circuit protection.
Is the ABB 1SDA056521R1 fixed or withdrawable?
The 1SDA056521R1 is a withdrawable moving-part version designed for use with a compatible ABB SACE Emax fixed part.
Trusted Protection from ABB SACE
ABB SACE Emax air circuit breakers are engineered for demanding low-voltage power distribution applications, combining electronic protection, high-current switching capability and withdrawable switchgear flexibility for industrial and commercial electrical systems.
