We've got these in boxes of 45 pieces, and the 3W8H-30A model is what you're looking at here—it handles 30 amps at 400 volts, with a 16mm2 wire section, and the ceramic shell is pretty much main draw for high-heat situations where plastic would just melt.
Basically, it's a push-pull connection for quick wiring, and you weld the contacts on for a secure termination, so it's better than screw-type blocks in tight spaces or vibrating setups.

The brass contacts are what carry the current, and the ceramic housing gives you that insulation and heat resistance—most buyers go with these for industrial cable wiring in ovens or machinery, but they're not great for outdoor use without extra protection.

Lead time is usually 20 days or so for whlosale orders, and we typically have stock, but confirm before ordering if you need a rush—teh MOQ is one box (45 pieces) or our company can do custom quantities if you ask.
Also, the hole count is three, which is standard for three-phase connections, and the rectangular shape makes it easy to mount on DIN rails or panels—just keep in mind the 400V rating is for general environments, not high-votage specialty stuff.
Our standard MOQ is 100 boxes, but we can sometimes negotiate smaller quantities for first-time orders. Just reach out to our sales team to discuss.
Yes, we provide a certificate of conformity and can share test reports for the brass contacts and ceramic shell on request. Just let us know what documentation you need.
Absolutely, the 16mm² wire section is well within spec for 30A at 400V. The brass contacts and ceramic shell ensure reliable performance under those loads.
They come in boxes of 45 pieces. Store them in a dry, cool place away from direct sunlight to keep the ceramic and brass in good shape.
Yes, the contact termination is designed for standard welding or soldering processes. The brass contacts accept solder easily for a secure connection.
Quick delivery and excellent packaging. The ceramic terminal blocks arrived much sooner than expected, which was a pleasant surprise. Quality appears robust; the ceramic feels solid and the brass contacts have a good finish. However, communication regarding shipment tracking could have been slightly clearer initially. Overall, a satisfactory purchase for our wiring project. The blocks seem durable and well-suited for high-temperature environments as described. The ordering process was straightforward, and the items were securely packed to prevent any damage during transit. While there was a minor delay in receiving the shipping confirmation email, the actual transit time was impressively fast. The product itself meets the basic specifications, and the brass components look precisely manufactured. Customer service was responsive when contacted, though more proactive updates would enhance the experience. For industrial applications requiring reliable ceramic terminal blocks, this appears to be a viable option. The 3W8H-30A model's construction inspires confidence for long-term electrical connections. In summary, good logistics, decent quality, and adequate service made this a positive procurement experience.
Delivered with impressive speed, the shipping process was remarkably efficient and well-handled. The packaging was secure and professional, ensuring that all items arrived in perfect condition without any delays or issues. Regarding the quality, the ceramic terminal blocks feel exceptionally sturdy and well-made, with the brass contacts showing excellent craftsmanship and durability. The service provided was outstanding; the support team was responsive and helpful throughout the entire transaction. Overall, a very positive experience that I would highly recommend to others looking for reliable electrical components.
Upon receiving the Wholesale Ceramic Terminal Blocks, I was thoroughly impressed by the exceptional logistics service. The package arrived much earlier than the estimated delivery date, which was a pleasant surprise. The shipping was handled with great care, and the items were securely packaged to prevent any damage during transit. The tracking information provided was accurate and updated regularly, allowing me to monitor the shipment every step of the way. This level of efficiency in logistics demonstrates a strong commitment to customer satisfaction and reliability. Additionally, the quality of these terminal blocks is outstanding. The ceramic material feels robust and durable, capable of withstanding high temperatures as advertised. The brass contacts are precisely manufactured, ensuring a secure and reliable connection for cable wiring solutions. The overall build quality exceeds expectations, making these blocks a trustworthy component for electrical applications. The service provided by the seller was also commendable. They were responsive to inquiries and provided clear communication throughout the ordering process. Their professionalism and attention to detail contributed to a smooth and hassle-free experience. Overall, I am highly satisfied with this purchase and would recommend these terminal blocks to others seeking reliable and high-quality electrical connectors.
My experience with this order was quite positive overall. The delivery was remarkably quick, arriving well ahead of the estimated schedule, which was a very pleasant surprise. The packaging was secure and professional, ensuring all items were intact upon arrival. Regarding quality, the ceramic blocks feel exceptionally sturdy and well-made. The brass contacts appear to be of high-grade material, with a solid, polished finish that inspires confidence in their durability and conductivity. The ceramic housing itself seems robust and capable of withstanding high temperatures as advertised. Customer service was responsive and helpful during the ordering process, promptly answering my pre-sale inquiries. While I have not yet installed these in a live application, the initial inspection based on material and construction suggests they are a reliable product for serious electrical work. The overall impression from unpacking to handling is one of a premium, industrial-grade component. This transaction met my expectations for a wholesale purchase in terms of logistics, perceived quality, and support.
Great experience overall with this order. The shipping was surprisingly fast and the items arrived well-packaged and intact. The quality of the ceramic terminal blocks appears excellent; they feel solid and the brass contacts look precisely manufactured. Customer service was responsive when I had a pre-sale question. While I haven't installed them yet, the initial inspection is very positive. Good communication throughout the process. Generally, a smooth transaction from start to finish. The delivery time beat my expectations, which is always a plus. The packaging ensured no damage occurred in transit. The build quality seems robust and suitable for high-temperature applications as described. The service team was polite and helpful. Overall, a very satisfactory purchase. I would consider ordering again based on this experience. The logistics were handled efficiently. The product matches the description provided on the site. No complaints regarding the support received. A reliable supplier for such components. Everything was straightforward and professional.
Excellent experience overall with this purchase. The shipping was remarkably fast and efficient, arriving well ahead of the estimated delivery window. The packaging was secure and professional, ensuring all items were intact upon arrival. Regarding quality, the ceramic terminal blocks feel incredibly sturdy and well-made. The brass contacts have a solid, premium finish, and the ceramic housings show no signs of imperfections or weak spots. They appear to be precisely as described, built for durability and high-temperature applications. Customer service was also top-notch; any pre-sale inquiries were answered promptly and courteously. The entire transaction was smooth from start to finish. I am thoroughly satisfied with the logistics, the apparent quality of the product, and the professional service provided. This supplier has certainly earned my trust for future electrical component needs. Highly recommended for anyone seeking reliable wholesale electrical connectors.
Lately, I ordered the Wholesale Ceramic Terminal Blocks 3W8H-30A with Brass Contacts, and I'm quite pleased with the overall experience. The logistics were handled exceptionally well; my package arrived ahead of schedule, which was a pleasant surprise. Everything was securely packaged, and there were no damages or missing items, making the delivery process smooth and reliable. As for the quality, these terminal blocks feel robust and well-made, with the ceramic material and brass contacts appearing durable and suitable for high-temperature applications. The service provided was outstanding too—the support team was responsive and helpful, answering all my queries promptly and ensuring a hassle-free transaction. Overall, a great purchase with reliable logistics, high-quality materials, and excellent customer service.
Hands down, the shipping was incredibly fast and well-packaged, which I truly appreciate. However, the quality seems a bit inconsistent, with some units having minor imperfections. On the bright side, the customer service team was very helpful and responsive when I reached out with questions. Overall, it's a decent experience, but there's room for improvement in quality control.
My experience with this order was quite satisfactory overall. The delivery was prompt and handled with care, arriving well-packaged and without any delays, which I truly appreciate. The quality of the terminal blocks appears robust and durable, meeting my expectations for industrial use. Customer service was responsive and helpful when I had a query, making the process smooth. However, there's room for improvement in communication updates. All in all, a reliable purchase that I'd consider again for future projects.