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So you're looking at medium voltage switching for substations, and the VS1 series is what we typically supply for those 6kV, 12kV, and 24kV setups, with a rated current range from 630A all the way up to 4000A depending on your feeder requirment — it's basically a vacuum bottle design that handles the arc extinguishing without any oil or gas.
We've run these through a lot of field applicaion, and what it does is combine the operating mechanism right into the breaker body so you don't have separate linkages or extra hardware; that mechanical durability is 20,000 operations, which is pretty much what most substation buyers expect for frequent switching.
The short circuit breaking current runs from 20kA to 40kA, and you'll see the power frequency withstand voltge at 42kV for the 12kV class or up to 65kV for the 24kV class, with lightning impulse at 75kV or 125kV respectively — just keep in mind this isn't designed for outdoor use despite its ruggedness, as the fixed and withdrawable instalation options are strictly indoor.
Most people ask about the operating voltage, and our company offer both AC and DC at 110V or 220V, though the asynchronous time between poles is tight at under 2ms, and contact bounce stays within that same range, which matters for arc consistency; also, the average closing speed of 0.6-0.8m/s is smoother than some older designs we've seen.
A detail you might not think of is epoxy resin insulation on the poles — actually, it holds up well in humid conditions but can be sensitive to sharp impacts during handling, so use the custom color option (white or gray by default) mostly for panel aesthetics, not performance.
We usually have stock on the 12kV 630A units in white, but for the 24kV or high-current 4000A variants the lead time is about 4-6 weeks or so, and our company can provide CE, CB, and IEC certifications with the shipment — the ISO9001 comes standard, of course, though you'll want to confirm the specific impulse test levels if your substation is at altitude.
Our MOQ for the VS1 series is typically 10 units for standard configurations, but we can discuss smaller quantities for initial trials or specific projects.
Lead time for that configuration is around 15-20 working days from order confirmation, depending on current production load.
Yes, we include ISO9001, CE, CB, and IEC certificates with every shipment. Just let us know if you need copies upfront.
Yes, the VS1 series is available in 24kV with short-circuit breaking current up to 40kA. Just confirm the exact specs when ordering.
Absolutely—we offer white, gray, or custom colors, and the operating voltage can be set to AC/DC 110V or 220V as needed.
Yikes, the shipping was incredibly fast and well-handled. The package arrived ahead of schedule and was in perfect condition, which was a huge relief given the delicate nature of electrical equipment. The logistics team clearly knows what they are doing, with secure packaging and clear tracking updates provided throughout the journey. Regarding the product itself, the build quality appears exceptional. The materials feel robust and the construction is precise, exactly as one would hope for such a critical component in a substation. The finish is professional, and it looks ready for integration into our switchgear lineup. Customer service was equally impressive. The support team was responsive and knowledgeable, answering all pre-purchase queries promptly and with great detail. They provided clear documentation and were proactive in their communication. Overall, this was a seamless experience from order placement to delivery. The combination of efficient logistics, apparent high quality, and outstanding support makes this supplier highly recommendable for anyone in need of reliable medium voltage equipment. A truly satisfactory procurement process all around.
Naturally, the entire ordering and delivery process was handled with impressive efficiency. The logistics were seamless from start to finish; the shipment arrived well within the promised timeframe and was packaged with exceptional care to ensure the product's integrity during transit. Every component was securely fastened and protected, which is crucial for sensitive electrical equipment of this nature. Regarding the product's quality, the construction is immediately apparent as robust and professional-grade. The materials feel substantial, and the overall finish suggests high manufacturing standards, which instills confidence for substation applications. The service provided by the supplier was equally commendable. Communication was clear, prompt, and professional at every stage, from initial inquiry to post-delivery follow-up. Any questions were addressed thoroughly and without delay. This combination of reliable logistics, apparent build quality, and attentive service makes for a highly satisfactory procurement experience for critical power distribution components.
A truly outstanding experience from start to finish. The logistics were handled with remarkable efficiency and precision. My order arrived ahead of the estimated schedule, which was a very pleasant surprise. The packaging was exceptionally robust and secure, clearly designed to protect sensitive electrical equipment during transit. Every component was individually wrapped and cushioned, and there was no sign of any damage whatsoever. The quality of the vacuum circuit breaker is immediately apparent upon inspection. The construction feels solid and professional, with high-grade materials and a finish that speaks to careful manufacturing standards. All the mechanical parts operate smoothly, and the overall assembly is impeccable. It integrates seamlessly into our existing medium voltage switchgear setup, which is a critical factor for substation operations. Regarding service, the communication was consistently clear, professional, and helpful. Any preliminary questions I had were answered promptly and thoroughly, providing confidence in the purchase. The documentation provided was comprehensive and accurate. This level of attention to detail in logistics, product quality, and customer support is commendable and somewhat rare. It reflects a supplier that understands the needs of the power distribution industry and is committed to delivering a complete, reliable solution. The entire process was straightforward and stress-free, making this a highly satisfactory procurement. I would not hesitate to source equipment from this supplier again for future projects, as they have demonstrated a clear commitment to excellence across all facets of the transaction.
My experience with this purchase was outstanding. The shipping was incredibly fast and efficient, arriving well ahead of schedule without any delays or damages. The packaging was secure and professional, ensuring the product was protected throughout transit. In terms of quality, the item exceeded my expectations; it feels robust and well-made, with excellent craftsmanship evident in every detail. The customer service team was responsive and helpful, promptly addressing my inquiries with clear and friendly communication. Overall, I'm highly satisfied with the seamless process and the high standards maintained in all aspects.
Huge thanks for the excellent delivery speed; the package arrived much faster than anticipated, which was a pleasant surprise. Handling was careful, with secure packaging that prevented any damage during transit. The overall quality appears robust and well-manufactured, giving confidence in its durability for industrial use. Customer service was responsive and helpful, promptly addressing my inquiries with clear communication. Highly satisfied with this smooth and efficient experience overall.
Quick delivery and excellent packaging ensured the item arrived safely without any delays. Quality appears robust and well-manufactured, meeting expectations for industrial use. Service was responsive and helpful throughout the ordering process, making it a smooth experience overall. Great communication and support from the team.
Fantastic experience from start to finish! The shipping was incredibly fast and well-handled, with the product arriving securely packaged and ahead of schedule. The quality of the vacuum circuit breaker is outstanding; it feels robust and well-manufactured, clearly built to last in demanding substation environments. Customer service was also top-notch—responsive, knowledgeable, and eager to assist with any inquiries. Overall, a seamless and satisfying purchase that I would highly recommend to others in the industry.
