EC Insulator Jiangxi Co., Ltd. is one of the most reliable manufacturers and suppliers of fuse cut out polymer in China. With abundant experience, we are committed to offering high quality custom service. Please feel free to wholesale premium fuse cut out polymer made in China here from our factory.
Brief Introduction
The polymer fuse cutout keeps medium voltage overhead circuits safe from unexpected fault currents. Mounted together with pole transformers and feeder branches, it limits system damage the moment overload or short circuit strikes. This polymer fuse cutout relies on expulsion arc quenching to break faults. When the fuse link melts under overload, gas builds up inside the tube and drives the arc outward, isolating the faulty segment quickly. The polymer fuse cutout uses silicone rubber housing built for long outdoor service. Unlike brittle porcelain alternatives, this housing copes well with shifting weather, heavy rain and strong sunlight, matching the tough field conditions our overseas partners often work in.
Product Features
We pay special attention to the hinge assembly shown on our drawing. Many low cost cutouts seize up after a few tripping cycles, but our design maintains smooth movement for repeated field operation. Silicone shell material resists dust and surface contamination. For lines exposed to seasonal humidity and frost, this property helps keep insulation performance steady and cuts routine cleaning work. Expulsion arc quenching delivers reliable fault interruption. It greatly lowers the risk of arc re strike, which can burn contact points and shorten the whole device's service life. All metal components go through hot dip galvanization. This protective layer fights rust, a key concern for projects built in humid valleys or lightly polluted industrial zones. Custom adjustments are available upon request. We can revise creepage distance and rework mounting hole spacing so the unit fits your existing support brackets and local electrical standards.
About Our Factory
We are ECI, running full chain production for this cutout right here in our plant. Our own copper casting line supports stable output, while CNC stamping and milling hold tight micron level precision for all metal parts. Fuse tube fabrication happens in our workshop too. We handle precision winding, lathe cutting and grinding in house. Grinding and sandblasting steps are arranged carefully to guarantee stable electrical conductivity for every contact. Automatic assembly lines arrange each component neatly. With every production step tracked and checked, we avoid inconsistent fitting that often appears from outsourced scattered processing.
Technical Specification (Expulsion Type)
|
Model |
Rated Voltage(kV) |
Rated Current(A) |
Rated Breaking Current(kA) |
BIL(kV) |
Creepage Distance(mm) |
Power Frequency Withstand Voltage(kV) |
|
HRW-15F/100(200)-10 |
15 |
100/200 |
10 |
110 |
370 |
40 |
|
HRW-27F/100(200)-10 |
27 |
100/200 |
10 |
150 |
580 |
45 |
|
HRW-38F/100(200)-8 |
36 |
100/200 |
8 |
170 |
1080 |
75 |
Application Scenarios
Most of these cutouts are supplied for overhead feeders of municipal and rural power grids. Many Latin American and Southeast Asian clients pair this product directly with pole mounted transformers in their infrastructure projects. Field technicians favor this drop out design for patrol maintenance. When they spot a fault on the line, they can replace the fuse link without bulky special tools, saving plenty of on site working time.
Our Advantages
Full in house production gives us strong control over quality and delivery. If you have non standard bracket layouts or special dimension needs, our engineering team can adjust accordingly. Two supply modes are open for selection. Order fully assembled cutouts pre fitted with fuse links, or buy fuse holders separately if you manage your own fuse stock locally. Each finished unit gets visual and mechanical inspection before packing. Our workers test hinge travel and contact alignment to rule out stuck mechanisms before shipment.
Packing & Delivery
Foam wraps each unit to prevent scratches. Three units share one carton, and all cartons are secured inside plywood cases for ocean shipping. Samples can be arranged for lab testing or site approval. For large tender projects, we can discuss flexible minimum quantity terms. We support FOB, CFR and CIF shipping terms. Just send us your destination port and freight plan once the order details are finalized.
FAQ
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