Active Member
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[China]
Address: Xiangyang Industrial Zone,Liushi Town,Yueqing City,Zhejiang Province,325604,P.R.China
Contact name:
WENZHOU MEIHENG ELECTRIC CO.,LTD |
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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.
Usual Service Conditions and Installation Conditions:
Rated breaking capacity:
Rated breaking capacity is the maximum short-circuit current
allowed for the fuse link to cutout reliably under rated voltage.
The instantaneous current loaded to the fuse link is much larger
than the normal working current when short-circuit occurs. The fuse
link is supported to cutout the line in an undamage condition i.e.
without bursting. The rated breaking capacity of TIRH fuses is up
to 120KA and the excellent current limiting characteristics
reliably protect the equipment form damages by electric power.
Screw Base Type Fuse Links(R021 E27,R022 E33,D02 E14) Fuse
Links
Applications:
This series of fuse links is mainly used in AC 50Hz,rated voltage
up to 690V, rated current up to 125A and for pro- tecting electric
equipment from overload and short-circuit. It can reliably break
the min fusion current to any current wit- hin 120KA.
It is also available for the protection of semiconductor parts and
equipments against short-circuittype aR)and prote- ction of
motors(type aM).This series of fuse links conforms to GB13539 and
IEC 60269 standards.
Design Features:
Variable cross-section fuse element made from pure metal sealed in
cartridge made from high-duty ceramic. Fuse tu be filled with
chemically treated high-purity quartz sand as arc-extinguishing
medium,Indicator springs out when fuse cuts to give
caution.According to the demand of customers we can also produce
special fuse.
Technical Specification:
| Code No. | Product model | Domestic and oversea similar prodcts | Rated Voltage(V) | Rated current(A) | Overall dimension (mm) | |||
| A | ΦD1 | ΦD2 | ΦD3 | |||||
| 18085 | RO21 | 5SB E27 RL6-25 | 500 | 2～6 | 50 | 22 | 13 | 6 |
| 8～10 | 50 | 22 | 13 | 8 | ||||
| 13 | 50 | 22 | 15 | 8 | ||||
| 16 | 50 | 22 | 15 | 10 | ||||
| 20 | 50 | 22 | 15 | 12 | ||||
| 25 | 50 | 22 | 15 | 14 | ||||
| 18086 | RO22 | 5SB E33 RL6-63 | 500 | 30-40 | 50 | 27 | 20 | 16 |
| 50 | 50 | 27 | 20 | 18 | ||||
| 63 | 50 | 27 | 20 | 20 | ||||
| 18087 | RO24 | E16 5SA | 500 | 2～6 | 50 | 12.5 | 11.3 | 6 |
| 10 | 50 | 12.5 | 11.3 | 8 | ||||
| 16 | 50 | 12.5 | 11.3 | 10 | ||||
| 20 | 50 | 12.5 | 11.3 | 12 | ||||
| Code No. | Product model | Domestic and oversea similar prodcts | Rated Voltage(V) | Rated current(A) | Overall dimension (mm) | |||
| A | ΦD1 | ΦD2 | ΦD3 | |||||
| 18088 | RO26 | E14 RL18 5SE E18 | 400 | 2～6 | 36 | 7.3 | 10 | 5 |
| 10 | 36 | 8.5 | 10 | 5 | ||||
| 18 | 36 | 9.7 | 10 | 8.5 | ||||
| 400 | 20 | 36 | 11 | 14 | 8.5 | |||
| 25 | 36 | 12 | 14 | 8.5 | ||||
| 35 | 36 | 13.3 | 14 | 8.5 | ||||
| 50 | 36 | 14.5 | 14 | 8.5 | ||||
| 63 | 36 | 16 | 14 | 8.5 | ||||
| 400 | 80 | 43 | 22 | 21 | 17 | |||
| 100 | 43 | 25 | 21 | 17 | ||||
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.
