Drop-out fuse cutout and load switching fuse cutout are of outdoor used high voltage protective device. To be connected with incoming feeder of distribution transformer or distribution lines, it mainly protect transformer or lines from short circuit and overload, and on/off loading, current. Drop-out fuse cutout is composed of insulate insulator supports and fuse tube, static contacts is fixed on two sides of insulator support and moving contact is installed on two ends of fuse tube. Fuse tube is composed of inside arc-extinguishing tube. Outer phenolic compound paper tube or epoxy glass tube, load switching fuse cutout provides enforced elastic auxiliary contacts and arc-extinguishing enclosure switching on-off loading current.
At normally working via fuse link tightened the fuse tube is fixed to form up of close position. In case system occur faults, fault current result result in fuse melt immediately and take piece electric are, which let arc-extinguishing tube being heated and explode a lot of gas, This will produce high pressure and below of the are along with tube. After fuse link melt moving contact has no tightened strength again, mechanism is locked and fuse tube drop out, Cutout now is in open position. When it needs to switch off during cutout loading, operator shall via insulating operating bar pull the moving contact, at its beginning main contact and auxiliary static contact is contacted still, Whiling pulling the auxiliary contact is separated between auxiliary contacts there occur electric arc and the arc will be lengthened in arc-extinguishing enclosure gap and meanwhile arc-extinguishing explode gas to blow off the arc during current passing zero.
Q: Are you manufacturer or a trade company? We are a true professional manufacturer more than 15 years in China.
Q: Where is your factory? Our factory address is Room 101, Building 2, No. 28, Binhainansan Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China.
Q:Can I produce fuse cutouts according to my own requirements? Surely, OEM & ODEM is welcome.
Q: May I get a fused cutout sample to check firstly? Yes, the sample fee and courier fee need be paid by your esteem company, we will return cost back to you within your first order.
Q: How about sample time? Normally, it can be ready in one week.
Q: What's your MOQ and delivery time? For cutout, its MOQ should be 100pcs, delivery time is 25 days.
Q: Do you have type test report for ad drop out fuse cutout?
Yes, but consider test fee is very high, we make test on some models, welcome to contact to know details.
Q: What is your payment term?
Our payment term is T/T, L/C, if you have other idea, let us discuss.
Q: What is package for fuse cutout?
For porcelain and polymer fuse cutout, we will pack by carton+ pallet packing.
Q: What is standard of your cutouts?
IEC 60282-2, IEEE/ANSI C37.41, IEEE/ANSI C37.42
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