Product Overview
Power distribution networks operating at a 52Hz rated frequency need switching equipment whose mechanical resonance, timing, and insulation coordination are all matched to that frequency. The LW36-126 outdoor SF6 circuit breaker is specified for exactly this duty. With a 126kV rated voltage, 3150A rated current and 40kA short-circuit breaking capability, it serves as the durable backbone breaker for distribution-level substations feeding industrial and municipal loads.
The breaker pairs an SF6 arc-extinguishing medium with a high-speed operating mechanism, so distribution faults are cleared quickly and the network is restored with minimal outage time. Built for outdoor installation with a 3-pole configuration and manufactured under ISO9001-2000 certification, it delivers the long-term durability that distribution utilities expect from primary switchgear.
Key Features
Matched to 52Hz rated frequency operation
The breaker is specified with a 52Hz rated frequency, matching the supply systems it protects and ensuring switching performance stays within design margins.
SF6 arc-extinguishing medium for durable interruption
SF6 gas gives the breaker high dielectric strength and rapid recovery after each interruption, supporting long service life across repeated switching duties.
3150A continuous rating for heavy distribution loads
The generous continuous current rating accommodates densely loaded distribution feeders without thermal derating in normal operation.
40kA breaking and 40kA/3s withstand capability
Even severe distribution faults are cleared decisively, while the short-time withstand rating keeps the breaker stable during backup protection time delays.
Outdoor 3-pole construction
The pole arrangement is designed for open-air distribution substations, tolerating weather exposure year-round with standard maintenance intervals.
Customization and OEM/ODM support
Specifications can be adapted to your distribution project, with OEM/ODM service available from the HaiRui factory in Zhejiang, China.
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
- 52Hz power distribution substations at the 126kV level
- Regional distribution networks feeding industrial parks
- Municipal load centers requiring durable primary breakers
- Distribution tie points and network reconfiguration switching
- Substation upgrades replacing aging oil or air-blast breakers
Frequently Asked Questions
What rated frequency is this breaker specified for?
The LW36-126 is listed with a 52Hz rated frequency in its specification table, matching power distribution systems that operate at that frequency.
Is the breaker suitable for continuous outdoor service?
Yes. It is an outdoor installation type breaker in a 3-pole configuration, designed for long-term exposure in open-air distribution substations.
What current and fault ratings does it carry?
It has a 3150A rated current, a 40kA rated short-circuit breaking current, and a 40kA/3s rated short-time withstand current at 126kV.
Can I order a customized version?
Yes. Customization is supported and OEM/ODM service is offered. The minimum order quantity is one piece, and each unit carries a 12-month warranty.
What quality certification does the manufacturer hold?
Manufacturing is covered by an ISO9001-2000 certified quality management system at the HaiRui facility in 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 rated frequency is this breaker specified for?
The LW36-126 is listed with a 52Hz rated frequency in its specification table, matching power distribution systems that operate at that frequency.
Is the breaker suitable for continuous outdoor service?
Yes. It is an outdoor installation type breaker in a 3-pole configuration, designed for long-term exposure in open-air distribution substations.
What current and fault ratings does it carry?
It has a 3150A rated current, a 40kA rated short-circuit breaking current, and a 40kA/3s rated short-time withstand current at 126kV.
Can I order a customized version?
Yes. Customization is supported and OEM/ODM service is offered. The minimum order quantity is one piece, and each unit carries a 12-month warranty.
What quality certification does the manufacturer hold?
Manufacturing is covered by an ISO9001-2000 certified quality management system at the HaiRui facility in Zhejiang, China.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
