Source SF6 circuit breakers directly from the manufacturer. 72.5kV–126kV outdoor high voltage types, designed in accordance with IEC 62271-100, with type test reports and full technical documentation. Send your requirements for a project quotation.
Complete range of outdoor high-voltage SF6 gas circuit breakers for transmission substations. Select your voltage class to get detailed specifications and pricing.
Every SF6 circuit breaker is manufactured to IEC standards and tested for extreme operating conditions — from desert heat to coastal humidity.
| Parameter | 72.5kV | 110kV | 126kV |
|---|---|---|---|
| Rated Voltage | 72.5 kV | 110 kV | 126 kV |
| Rated Current | 3150 A | 3150 A | 4000 A |
| Short-Circuit Current | 50 kA | 40 kA | 50 kA |
| Breaking Time | ≤ 40 ms | ≤ 40 ms | ≤ 40 ms |
| Operating Mechanism | Spring | Spring | Spring |
| SF6 Gas Pressure (Rated) | 0.6 MPa | 0.6 MPa | 0.6 MPa |
| Insulation Level | 325/750 kV | 550/1250 kV | 550/1250 kV |
| Operating Temp. | -30°C ~ +55°C | -30°C ~ +55°C | -30°C ~ +55°C |
| Standard | IEC 62271-100 | IEC 62271-100 | IEC 62271-100 |
Full technical specifications for our outdoor SF6 circuit breaker range. Need a custom configuration? Contact our engineering team.
Everything you need to know about our SF6 circuit breakers — pricing, delivery, customization, and more.
We offer outdoor SF6 circuit breakers in 72.5kV, 110kV, and 126kV ratings. The 72.5kV model is also suitable for 69kV North American systems. Additional voltage ratings may be available on request — contact us with your requirement.
The SF6 circuit breakers are designed in accordance with IEC 62271-100 (High-voltage switchgear and controlgear — Part 100: Alternating current circuit-breakers).
Yes. We can customize rated current, breaking capacity, control voltage, and mounting configuration based on your project requirements. Please provide your technical specification or tender document for review.
Each unit ships with routine test reports, product datasheet, installation and operation manual, and dimensional drawings. Type test reports are available on request.
Send your requirements through the form below — include voltage rating, rated current, quantity, and destination country. Our engineering team will review and respond with product specifications and pricing within
Send us your specifications and receive a detailed quotation within 24 hours. No obligations — just factory-direct pricing from the manufacturer.
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