WENZHOU MEIHENG ELECTRIC CO.,LTD
WENZHOU MEIHENG ELECTRIC CO.,LTD Join us,Let us work together in cooperation with your company!
Add to Cart
HR17B Series Square Panel Mount Fuse Holder Disconnector Switch
Fuse Links Selection Guide:
The purpose of using fuses is to out off the line safely and correctly to protect discrete components or the whole line in case of circuit errors. The following are the necessary conditions to be considered when selecting fuses.
Malfunction:
Malfunction is usually a result of incomplete analysis on the design of circuit, Special attention should be given to 1) normal rated current; 3) Ambient temper- ature; and 6)overload increasement of factors to be considered for selection of fuses listed below. For example, frequent reasons for malfunction under normal working conditions are insufficient consideration to the start current of capacitor circuit and the ambient temperature around the fuse link.
HR17B series fuse-type disconnector Switches:
HR17B series fuse-type disconnector with load operation, suitable for rated current 40A~1600A, there are 1 group, 2 groups, 3 groups, 4 groups of points. It can be mounted on the busbar, can also be installed in the fixed plate; it provides the upper and lower input and output structure, with a knife- edge introduction and arc-control device; and the switch cover has irregular closed detection holes, built-in signal switch, detection switch. it can be optional fuse monitor, can also be used as knife switch. The switch with beautiful shape, novel and concision, it meets the lEC60947-3, GB140483 standards.
Basic Data:
| Code No. | Product model | Model, size and specification of applicable fuse link | Rated insulation Voltage(V) | Overall dimension (mm) | |||
| A | B | C | D | ||||
| 18223 | HR17-160 | NT00/00C NH00 OOC RT 16-00/000 | 690 | 160 | 200 | 83 | 205 |
| 18224 | HR17-250 | NT1 NH1 RT 16-1 | 690 | 185 | 247 | 110 | 295 |
| 18225 | HR17-400 | NT2 NH2 RT 16-2 | 690 | 210 | 290 | 125 | 340 |
| 18226 | HR17-630 | NT3 NH3 RT 16-3 | 690 | 256 | 300 | 145 | 360 |
Factors To Be Considered For Selection of Fuses:
Ambient Temperature:
Ambient Temperature means the air Temperature directly around the fuse, and should not be understood as the room temperature. In many application cases, the fuses are at rather high temperature as they are installed with supporting devices or bases in different structures and they are closed in the distributing or controlling boxes.
Further information:
1. Plastics materials: all raw materials are brand-new and second-hand materials are forbidden. Furthermore some of them are supplied by super branding companies like DSM, Mitsubishi.
2. There is just one level of quality as A in MEIHENG and we are aim to provide the excellent articles to our clients and help them gain more market shares.
3. ODM: we are providing ODM services to the super companies (more than 15) who are top-10 electrical industrial companies in their country. Just show us your ideas and we will present a solution.
FAQ
A. How's the delivery time?
Depend on your quantity, usually within 20days after receiving deposit
B. Would you accept OEM/ODM service?
Glad to say that there is planning department, technical department and mould tooling center in
our factory. For the OEM & ODM, it is ok for us if your brand, market shares are great.
C. Would you offer free sample?
Samples are freely provided and shipping costs is paid on your end usually.
D What's your guaranty time?
At least 2 years and depend the product
E What's your payment term?
T/T, L/C; other terms is negotiable after further check