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It’s been through our standdard test cycle before it leaves the floor—short-circuit at 65KA for one second, dielectric at 12KV impulse, the full load run at 170W dissipation—so you’re not getting a box with unknown internals. The 4000A rated current and 400V/690V AC voltge options mean it’s built for main feeders in substations or large motor control centers, not light commercial panels.
We batch-test every production run and keep COAs on file for the CE and CCC marks, which cover the basic protection modes like overload, short-circuit, and single-phase fault. Most buyers go with the electric operation type on the 3P fixed frame, because racking out a 4000A breaker by hand is pointless at that size. One thing we don’t do is re-test to custom specs for single-unit orders—the retest policy applies only to full-lot returns.
Breaking capacity is 50KA at 400V and 40KA at 690V, which is better than teh generic 35KA stuff you’ll find on some other brands, but it’s not meant for high-fault coastal switchgear where you’d need 65KA or more at 690V. Actually, the arc-extinguishing is air-based, so there’s no gas to refill or store. It’s pretty straightforward.
You’re looking at a lead time of roughly 3-4 weeks for a single piece, but we stock the 4000A series intermittently—usually our company have 20 units or so in the warehouse, though confirm inventory before ordering if you need it in under 20 days. The packaging is a plywood crate strapped on a pallet, with the breaker horizontal, terminals bagged, and the instruction manual tucked inside.
Also, the ISO9001 cert covers our entire assembly line, not just this model, so batch consistency is generally tight cycles—give or take a 0.5% variation in breaking time on the electronic trip unit. We don’t test every unit for power consumption, but the spec sheet says 170W nominal, and in practice it runs about 165W under load.
Anyway, it’s a fixed-mount design, so it’s not suited for setups where you need to swap breakers between different locations. Shipping goes out form the main distribution center, and we include the retest form inside the crate if you ever need to send one back for verification.
MOQ is 1 unit for stock items, but if you need a custom voltage rating or special accessories, we typically ask for 5 pieces to start production.
Standard lead time is 15-20 working days after order confirmation. If you need it faster, rush orders can ship in 10 working days with a small surcharge.
Yes, we include CE and CCC certificates with every order. We also have ISO9001 quality docs available if your compliance team needs them.
That 170W is the power consumption at 400V rated current. It'll be slightly different at 690V, but we can give you exact numbers if you specify your working voltage.
Keep it in its original packaging in a dry, clean place with temperature between -5°C and 40°C. Avoid dust and humidity, and it'll stay good for up to 2 years.
Outstanding experience from start to finish. The delivery was remarkably prompt, arriving well ahead of the initial estimated schedule. The packaging was exceptionally secure and professional, with every component meticulously protected, which is crucial for such a critical piece of industrial equipment. Regarding the quality, the build of the breaker is immediately impressive. The materials feel robust and durable, and the overall construction exudes a sense of precision and reliability that one expects from certified protection devices. The finish and attention to detail are excellent. As for the service provided, it was truly top-tier. The communication was clear and proactive, with updates provided without needing to ask. Any preliminary questions were answered thoroughly and promptly by a knowledgeable support team that understood the technical nature of the product. The entire process, from ordering to the item arriving at our facility, was seamless and handled with great professionalism. This level of service, combined with the apparent superior quality of the product itself and the efficient logistics, gives immense confidence in the supplier. It reflects a company that values its customers and stands firmly behind its offerings. For anyone in need of reliable circuit protection, this supplier and product line come highly recommended based on this very positive interaction. The combination of speed, solidity, and support made this procurement process exceptionally smooth and satisfactory.
Hands down, the shipping was incredibly fast and efficient—my order arrived ahead of schedule, which was a pleasant surprise. The packaging was secure, ensuring everything was in perfect condition upon delivery. As for quality, the item feels robust and well-made, meeting my expectations for durability. Customer service was outstanding too; they were responsive and helpful with any inquiries I had. Overall, a very satisfying experience from start to finish.
Completely satisfied with the shipping speed and packaging. The delivery arrived ahead of schedule, which was a pleasant surprise. The quality appears robust and well-made, meeting my expectations for industrial-grade components. Customer service was responsive and helpful when I had a query, providing clear and timely assistance. Overall, a smooth and reliable experience from start to finish.
Upon receiving the ASKW1 series circuit breaker, I was thoroughly impressed by the outstanding logistics performance. Unbelievably fast and secure delivery ensured the product arrived ahead of schedule without any damage. The quality appears robust and reliable, with solid construction that meets industrial standards. Customer service was exceptional, providing timely updates and support throughout the process. Utterly satisfied with this seamless experience from start to finish.
Yay, the delivery was incredibly fast and arrived ahead of schedule, which was a pleasant surprise. The packaging was secure and showed no signs of damage during transit. Regarding quality, the product feels robust and well-made, with no visible defects or issues. Customer service was responsive and helpful, answering all my queries promptly and professionally. Overall, a very satisfying experience that I would highly recommend to others.
Vastly impressed by the delivery speed and packaging quality. The shipping was remarkably fast, arriving ahead of schedule, which minimized downtime for our facility. Each component was securely wrapped, showing great attention to detail in handling. Customer service was outstanding, with prompt responses to inquiries and clear communication throughout the process. The build quality appears robust and reliable, aligning with industrial standards. Overall, a very positive experience from order to receipt, making future purchases highly likely. The professionalism exhibited in logistics and support sets a high benchmark for similar products.
