Product Overview
Every 252kV project has its own parameters — altitude, ambient temperature, switching duty, protection philosophy. The LW-252 is supplied as a customized outdoor SF6 circuit breaker built around those requirements, with a specification listed as Custom and an OEM/ODM service arrangement that adapts the breaker to your project rather than forcing your project to adapt to the breaker. The result is stable, repeatable breaking performance across the full service life.
Stability comes from the engineering fundamentals: a 50kA short-circuit breaking current with matching 50kA withstand, a 125kA peak withstand rating, SF6 arc extinguishing, and a high-speed operating mechanism rated for 50Hz networks at 252kV with a 4000A continuous current. The split structure supports precise manufacture and dependable long-term performance, and production is controlled under ISO9001-2000 certification in Zhejiang, China.
Key Features
Customized to project specifications
The specification is listed as Custom, and OEM/ODM service adapts ratings-related packaging and project requirements to your engineering needs.
Stable breaking performance
A 50kA short-circuit breaking current is delivered with SF6 arc extinguishing and high-speed operation, giving repeatable interruption performance fault after fault.
Split structure design
The split structure construction supports precise assembly and consistent quality, contributing to the stable switching behavior utilities require at 252kV.
50kA withstand with 125kA peak margins
The 50kA short-circuit withstand current, 125kA making current peak, and 125kA rated peak withstand current cover the full fault sequence from first asymmetrical peak to final clearance.
Complete 252kV insulation system
460kV power-frequency and 1050kV lightning impulse withstand voltages to earth, with across-fracture values of 460kV + 146kV and 1050kV + 206kV respectively.
Reliable supply terms
ISO9001-2000 certified manufacturing, MOQ of one piece, wooden-box transport packing, and a 12-month warranty from the HaiRui factory.
Basic Info.
| Model NO. | LW-252 |
| Arc-extinguishing Medium | SF6 |
| Poles Number | 3 |
| Function | Circuit-Breaker Failure Protection, Overcurrent Protection |
| Product Name | Hv Sulfur Hexafluoride Circuit Breakers |
| MOQ | 1PCS |
| Customize | Yes |
| Rated Power-Frequency Withstand Voltage | to earth:460kv Fracture: 460+146kv |
| Rated Frequency | 50Hz |
| Rated Short-Circuit Breaking Current | 50ka |
| Rated Short-Circuit Withstand Current | 50ka |
| Transport Package | Wood Box |
| Trademark | HaiRui |
| Speed | High-Speed Circuit Breaker |
| Installation | Outdoor Installation |
| Type | Circuit Breaker |
| Certification | ISO9001-2000 |
| Service | OEM/ODM |
| Warranty | 12 Months |
| Rated Voltage | 252kv |
| Rated Lightning Impulse Withstand Voltag | to Earth:1050kv Fracture: 1050+206kv |
| Rated Current | 4000A |
| Rated Short-Circuit Making Current Peak | 125ka |
| Rated Peak Withstand Current | 125ka |
| Specification | Custom |
| Origin | Zhejiang,China |
Packaging & Delivery
| Package Size | 1.00cm*1.00cm*1.00cm |
| Package Gross Weight | 1.000kg |
Applications
- EPC transmission projects requiring site-specific breaker customization
- 252kV substations with project-defined switching and protection schemes
- Utilities seeking stable breaking performance in OEM/ODM supply arrangements
- Overseas grid projects needing tailored specification and documentation
- Standardized fleet replacement programs at the 220kV class
Frequently Asked Questions
Can the LW-252 be customized for my project?
Yes. The specification is listed as Custom and customization is supported, with OEM/ODM service available from the ISO9001-2000 certified HaiRui factory at a minimum order of one piece.
What breaking performance does the breaker deliver?
It provides a 50kA rated short-circuit breaking current and 50kA short-circuit withstand current, using SF6 arc extinguishing with high-speed operation for stable, repeatable performance.
What are the continuous current and voltage ratings?
The rated voltage is 252kV and the rated current is 4000A, with a rated frequency of 50Hz.
How does the split structure benefit performance?
The split structure allows each section to be assembled and verified precisely, supporting consistent switching quality and easier maintenance over the breaker’s life.
What withstand ratings cover the fault sequence?
The breaker carries a 125kA rated short-circuit making current peak and a 125kA rated peak withstand current, in addition to its 50kA short-time ratings.
Get a Quote
As an ISO9001-certified manufacturer based in Zhejiang, China, HaiRui supplies the LW-252 high voltage SF6 circuit breaker with flexible OEM/ODM service, customization support, and a 12-month warranty. Minimum order quantity is just one unit, and every breaker ships in a robust wooden export crate. Contact our engineering team with your ratings, altitude, and climate requirements for a detailed quotation and lead time.
FAQ
Can the LW-252 be customized for my project?
Yes. The specification is listed as Custom and customization is supported, with OEM/ODM service available from the ISO9001-2000 certified HaiRui factory at a minimum order of one piece.
What breaking performance does the breaker deliver?
It provides a 50kA rated short-circuit breaking current and 50kA short-circuit withstand current, using SF6 arc extinguishing with high-speed operation for stable, repeatable performance.
What are the continuous current and voltage ratings?
The rated voltage is 252kV and the rated current is 4000A, with a rated frequency of 50Hz.
How does the split structure benefit performance?
The split structure allows each section to be assembled and verified precisely, supporting consistent switching quality and easier maintenance over the breaker's life.
What withstand ratings cover the fault sequence?
The breaker carries a 125kA rated short-circuit making current peak and a 125kA rated peak withstand current, in addition to its 50kA short-time ratings.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
