Product Overview
Industrial power grids — steel plants, chemical complexes, mining operations, and large manufacturing campuses — run their own 126kV switchgear and cannot afford unprotected fault exposure. The LW36-126 outdoor SF6 circuit breaker is built as the primary protection element for these grids. Its specification includes dedicated circuit-breaker failure protection and overcurrent protection functions, so when a fault strikes anywhere on the network, the breaker is the reliable final authority that isolates it.
With a 126kV rated voltage, 3150A rated current and 40kA short-circuit breaking capacity backed by 40kA/3s withstand, the breaker handles the heavy fault levels typical of industrial infeed. SF6 gas extinguishes the arc at high speed, and the 3-pole outdoor construction withstands the dusty, hot environments common around industrial sites. Manufacturing under ISO9001-2000 with OEM/ODM service available keeps procurement straightforward for EPC and plant engineering teams.
Key Features
Engineered for grid protection duties
Specified with circuit-breaker failure protection and overcurrent protection functions, forming part of a layered protection philosophy for industrial networks.
40kA fault handling from infeed to clear
A 40kA breaking capacity with 40kA/3s short-time withstand covers the high fault levels typical where utility supplies meet large industrial loads.
3150A rating for concentrated load blocks
Industrial processes concentrate megawatts on few feeders; the 3150A continuous rating carries these blocks without thermal compromise.
SF6 high-speed interruption
Fast operation with SF6 arc quenching limits fault duration, reducing damage to cables, transformers, and rotating machines downstream.
Rugged outdoor 3-pole construction
Designed for open-air installation, the breaker tolerates the dust, heat, and weather exposure surrounding industrial switchyards.
Straightforward procurement and support
HaiRui supplies from Zhejiang, China with ISO9001-2000 certification, customization options, OEM/ODM service, and a 12-month warranty at MOQ of one piece.
Basic Info.
| Model NO. | LW36-126 |
| Arc-extinguishing Medium | SF6 |
| Poles Number | 3 |
| Function | Circuit-Breaker Failure Protection, Overcurent Protection |
| Product Name | Hv Sulfur Hexafluoride Circuit Breakers |
| MOQ | 1PCS |
| Customize | Yes |
| Rated Frequency | 52Hz |
| Rated Short-Circuit Breaking Current | 40ka |
| Transport Package | Wood Box |
| Trademark | HaiRui |
| Speed | High-Speed Circuit Breaker |
| nstallation | Outdoor Installation |
| Type | Circuit Breaker |
| Cetification | ISO9001-2000 |
| Service | OEM/ODM |
| Warranty | 12 Months |
| Rated Voltage | 126kv |
| Rated Current | 3150A |
| Rated Short-Time Withstand Current/Durat | 40/3ka/S |
| Specification | Custom |
| Origin | Zhejiang,China |
Packaging & Delivery
| Package Size | 1.00cm*1.00cm*1.00cm |
| Package Gross Weight | 1.000kg |
Applications
- Steel, chemical, and cement plant 126kV switchyards
- Mining and heavy-industry power grids needing fault isolation
- Industrial campus substations fed from utility transmission
- Cogeneration and captive power plant grid connections
- Protection upgrades on aging industrial breaker fleets
Frequently Asked Questions
What protection functions does the LW36-126 support?
The specification lists circuit-breaker failure protection and overcurrent protection functions, allowing the breaker to integrate into coordinated industrial grid protection schemes.
Can it handle industrial fault levels?
Yes. It offers a 40kA short-circuit breaking current and 40kA/3s short-time withstand current at 126kV with a 3150A continuous rating.
Is the breaker suitable for harsh industrial environments?
The outdoor installation design and 3-pole construction are suited to open-air industrial switchyards, including dusty and high-temperature sites.
Do you support OEM/ODM for industrial projects?
Yes. OEM/ODM service and customization are available, with ISO9001-2000 certified manufacturing and a minimum order of one piece.
How is the product delivered?
Each breaker is packed in a wooden transport box, covered by a 12-month warranty, and shipped from Zhejiang, China.
Get a Quote
As an ISO9001-certified manufacturer based in Zhejiang, China, HaiRui supplies the LW36-126 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
What protection functions does the LW36-126 support?
The specification lists circuit-breaker failure protection and overcurrent protection functions, allowing the breaker to integrate into coordinated industrial grid protection schemes.
Can it handle industrial fault levels?
Yes. It offers a 40kA short-circuit breaking current and 40kA/3s short-time withstand current at 126kV with a 3150A continuous rating.
Is the breaker suitable for harsh industrial environments?
The outdoor installation design and 3-pole construction are suited to open-air industrial switchyards, including dusty and high-temperature sites.
Do you support OEM/ODM for industrial projects?
Yes. OEM/ODM service and customization are available, with ISO9001-2000 certified manufacturing and a minimum order of one piece.
How is the product delivered?
Each breaker is packed in a wooden transport box, covered by a 12-month warranty, and shipped from Zhejiang, China.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
