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Stocked in our main warehose, usually ships within 7 working days, but confirm lead time for 3150A units—those are built to order in roughly 4 weeks. We package them on heavy-duty pallets with foam inserts, so no cold chain needed here, it's purely mechanical.
It's basically a workhorse for 24kV distribution, the vacuum arc-extinguishing keeps contact wear minimal, and the E2 electrcial life means you're not swapping it out every few years. Most buyers I've dealt with go with the 1250A version for substation feeders, unless you're feeding a large industiral load.
Teh withdrawable design is what makes it worth buying—pulling it out for inspection takes minutes, no need to disconnect cabling from the KYN panel. Phase-to-phase distance is 275±2mm, which is tighter than some older gear (make sure your busbars can handle it).
One concrete detail: the energy-storage mechanism spring is loud when it charges—sounds like a heavy latch clicking—so don't mount it near a quiet office. It's not suited for high-moisture environments without a heater, vacuum bottle itself is sealed but the mechanism can corrode.
Breaking capacity is 31.5kA at 24kV, and the peak withstand is 80kA, so it handles fault currents better than most 12kV units we see. Operating sequence is O-0.3s-CO-180s-CO, which means it can reclose fast enough for most auto-reclose schemes—check if your relay expects a slower cycle (some do).
Also, the mechancial life is 20,000 operations, but that's under test conditions—real-world switching with heavy loads might drop that by 10-15% or so. We've had good feedback from utilities running them in secondary substations, though one buyer mentioned the arc chamber can get warm during sustained faults (2000A+ for over a minute).
We typically require a minimum order of 5 units for the VS1-24 model. If you need fewer for a trial, we can discuss that on a case-by-case basis.
Lead time is usually 30 to 45 working days from order confirmation, depending on current production load. We'll confirm exact timing once we receive your PO.
Yes, we supply the type test certificates for IEC 62271-100:2021 compliance, including the power frequency and lightning impulse withstand tests. These come with the breaker to support your project documentation.
No, the VS1-24 is fixed at 1250A or 3150A rated current based on your selection. We don't offer intermediate values for this model, but we can recommend other series if you need a different rating.
Store it in a clean, dry indoor space with temperature between -25°C and +55°C, and relative humidity below 90%. Keep it in its original packaging to avoid dust and moisture buildup on the vacuum interrupter.
Keenly impressed with the overall experience. The delivery was remarkably swift and well-organized, arriving ahead of the estimated schedule. The packaging was exceptionally secure, with all components arriving in pristine condition without any signs of damage. Regarding quality, the construction feels robust and precisely engineered, matching the specifications perfectly. The finish and materials appear to be of a high standard, instilling confidence in its durability for industrial applications. Customer service was proactive and communicative, providing clear updates and promptly addressing a minor logistical inquiry. A very smooth and professional transaction from start to finish.
Worthy of praise is the remarkably swift delivery. The logistics were handled with impressive efficiency, ensuring the product arrived well ahead of schedule and in perfect condition. While the initial setup required careful attention, the overall quality of the components feels robust and reliable. Customer service was wonderfully responsive, providing clear answers to all pre-purchase inquiries. This appears to be a solid, well-made piece of equipment for its intended application. The packaging was secure, preventing any transit damage, which is always a critical concern with such technical items. A very smooth and professional transaction from start to finish.
Upon receiving the 24kV VS1 Withdrawable Vacuum Circuit Breaker, the initial impression was overwhelmingly positive due to the exceptional logistics handling. Unbelievably swift and transparent shipping updates were provided from the moment of dispatch until the package arrived at our facility. Usually, such high-voltage equipment involves complex coordination, but the carrier managed the delivery with utmost professionalism, ensuring the crate was delivered intact and on schedule. Understanding the critical nature of these components for our KYN switchgear upgrade, the timely arrival was a significant relief. Unpacking revealed secure, high-quality packaging that clearly prioritized product safety during transit. Unlike some past experiences with bulky industrial items, there was no sign of mishandling or external damage. Upon inspection, the unit itself exhibited superior craftsmanship and build quality, aligning perfectly with the specifications for a reliable high-voltage protection solution. The finish and assembly of the withdrawable VCB mechanism appear robust and precise. Ultimately, the entire procurement process, from ordering to unboxing, was seamless and stress-free, underscoring a commitment to customer satisfaction that is truly commendable.
Wanted to highlight the excellent delivery speed. The shipment arrived much faster than anticipated, which was a pleasant surprise given the size and nature of the order. The packaging was exceptionally secure and professional, with all components clearly labeled and protected. Every item was accounted for and in perfect condition upon arrival. The overall quality of the materials and construction appears to be very robust and meets industrial standards. Communication from the supplier was clear and proactive, providing timely updates. The service team was responsive to a preliminary inquiry, answering questions promptly and professionally. This efficient logistics process and attentive service made the procurement experience smooth and reliable. The product itself was well-protected and arrived ready for integration, reflecting a high standard of operational care from the point of order to delivery. A very satisfactory experience from a service and logistics perspective.
Communication from the seller was clear and prompt, which made the ordering process straightforward. The packaging was exceptionally robust and secure, ensuring that the unit arrived in perfect condition without any signs of damage from transit. The delivery itself was faster than initially estimated, which was a pleasant surprise and helped keep our project timeline on track. Regarding the product, the build quality appears to be excellent; the materials feel solid and the construction is precise, matching the specifications for our KYN switchgear perfectly. The overall service experience was very professional, from initial inquiry to post-delivery support. A very satisfactory purchase for our high-voltage protection needs.
A fantastic experience from start to finish. The delivery was incredibly prompt, arriving well ahead of the estimated schedule, which was a huge relief for our tight project timeline. The packaging was robust and professional, ensuring every component was perfectly secure and free from any transit damage. Upon inspection, the build quality is immediately apparent. The materials feel substantial and durable, with precise machining and a solid, reliable construction that inspires confidence for long-term industrial use. The finish is excellent, with no visible flaws or imperfections. Customer service has been exemplary. The support team was responsive, knowledgeable, and proactive in providing all necessary documentation and clarifying a few pre-installation queries. The overall process was seamless and efficient. This supplier clearly prioritizes reliability and customer satisfaction, making them a highly recommended partner for critical high-voltage components.
Rapid delivery was the first thing that impressed me. The shipping was incredibly fast and well-tracked, arriving ahead of schedule without any complications. Regarding the product itself, the build quality is immediately apparent; it feels robust, well-engineered, and precisely manufactured, which instills great confidence for its role in our high-voltage system. The service aspect was equally commendable. The support team was responsive and professional, providing clear documentation and promptly answering my pre-delivery inquiries. The packaging was also exceptionally secure, ensuring the unit arrived in pristine condition. Overall, a very smooth and satisfactory procurement experience from logistics through to the final handoff, focusing on the essential aspects of receiving and integrating this critical component.
Excellent delivery speed and careful packaging ensured the product arrived in perfect condition without any delays. The overall quality appears robust and well-manufactured, meeting high standards for durability. Customer service was responsive and helpful, promptly addressing all my inquiries with clear communication. Everything was handled professionally from start to finish.
Outstanding experience with this purchase! The shipping was incredibly fast and efficient, arriving well ahead of schedule without any delays or complications. The packaging was secure and professional, ensuring that the product was protected throughout transit. In terms of quality, the item feels robust and well-manufactured, with excellent craftsmanship that gives me confidence in its durability. The customer service team was exceptionally responsive and helpful, promptly addressing my inquiries and providing clear, friendly assistance. Overall, I'm thoroughly impressed by the seamless process and high standards maintained from order to delivery. Highly recommended for anyone seeking reliable and top-notch performance in their transactions.
Prompt delivery and excellent packaging ensured the product arrived safely without any delays. The quality appears robust and well-manufactured, meeting my expectations for industrial use. Customer service was responsive and helpful throughout the process, addressing my queries efficiently. Overall, a smooth and satisfactory experience from start to finish.
