Coffee Maker Radial Leaded Thermal Cutoff Fuse 5A 250V 102C 115C
125C 130C 150C For Fan Motor Overheating Protection
1 Product description Of The Thermal Cutoff Fuse 5A 250V 102C 115C
125C 130C 150C
A thermal fuse or thermal cutoff is a safety device which open
circuits against overheat. It detects the heat caused by the
over-current due to short circuit or component breakdown. Thermal
fuses do not reset themselves when the temperature drops like a
circuit breaker would.
Y series thermal fuse introduction: thermal fuse is composed of
fuse wire and insulated shell, mainly used in electrical and
electronic product equipment and its parts. It is mostly used in
indoor electrical equipment, mainly to protect electrical equipment
from overheating under abnormal conditions. Once the fuse is to be
reset, only the temperature fuse of the same type and specification
can be used.
2 Working principle Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
When the temperature of the equipment rises abnormally, the thermal
fuse is induced to heat, and when the temperature reaches the set
temperature of the alloy, the low melting point is melted, and the
surface tension of the molten alloy increases under the action of
the special resin, causing the alloy to shrink in a spherical
shape. On the lead wire, the circuit is completely cut off.
3 Anatomy Diagram Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
| a | b | c | d | e |
| Insulation Case | Low melting point alloy | Special resin | Seal resin |
Tinned plated copper |
4 Product installation guidelines Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
* Keep a distance of 3mm from the fuse body when bending the wire.
* When welding or soldering exceeds the rated temperature of the
fuse, the longer the welding distance and the shorter the welding
time, the less damage to the fuse.
* Be careful of the current flowing in the insurance body.
* Do not use liquids or toxic gases such as sulfuric acid and
nitric oxide.
* Do not connect the heater and the fuse directly.
5 Dimension Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C (mm)
| A | B | C | D | E※ |
| 8.5±0.5 | 8.0±0.2 | 3.5±0.2 | 1.0±0.05 | 45±2 |
Length can be customized on request |
6 Electrical Performances Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
| P/N | Rated operating temperature Tf(℃) | Actual operating temperature (℃) | Hold temperature Tc(℃) | Limit temperature Tm(℃) | Rated Voltage (V) | Rated Current (A) |
| Y10 | 102 | 98±1 | 72 | 150 | 250 | 10 |
| Y20 | 115 | 111±2 | 87 | 150 | 250 | 10 |
| Y30 | 125 | 121±2 | 95 | 150 | 250 | 10 |
| Y35 | 130 | 126±1 | 102 | 150 | 250 | 10 |
| Y50 | 150 | 146±2 | 120 | 180 | 250 | 10 |
7 Company Introduction Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
* Our company is located in Shilong Town, Dongguan City, Guangdong
Province. It is a high-tech enterprise specializing in the
production of thermal fuses.
* Since its establishment, the company has been committed to the
development, production and application of thermal fuses. The
products have passed CCC, VDE, TUV, UL, SGS certification, and the
quality system has passed ISO9000 certification. The company has
independent development capabilities and can develop various
products required by customers in accordance with customer
requirements. At present, the company's research and development
capabilities, production control, product quality, and quality
assurance capabilities have reached the advanced level in the same
industry.
* The RH temperature fuse produced by our company is suitable for
power transformers, power switches, sockets, rectifiers, fitness
massagers, electric blankets, energy-saving lamps, communication
tools and other household appliances. It is an indispensable safety
for protecting electrical products and preventing electrical fires.
Accessories. To
* The company adheres to the principle of "doing the job well the
first time", with fast delivery as the main line, and reasonable
price as the competitiveness, to provide manufacturers with
satisfactory products and services.
8 Quality Assurance Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
9 More Products Of The Thermal Cutoff Fuse 5A 250V 102C 115C 125C 130C 150C
10 Some Frequently Asked Questions about Thermal Fuse
1. How is a thermal fuse different from an electric fuse?
An electric fuse is a common name of a thermal fuse. The thermal
fuse is of two types.
The one which melts at a certain high temperature
The one which disconnects due to sub-zero temperature as required.
Hypo thermal fuse is made of Biometal but a simple electric thermal
fuse can be of any metal or alloy.
There is another fuse that does not blow but disconnects the
electric circuit. This is called a magnetic fuse. This used in
circuit breaker.
2. Are thermal fuses universal?
If by “universal” you mean “one size fits all”, then no. Thermal
fuses come in a range of temperatures. The only ones I’ve bought
are to replace failed ones in coffee makers, and I picked ones
rated at around 110*C with an appropriate current capacity. Did not
search for anything else, but higher current capacity units must
exist.
For those who have not run into these devices, they operate like
any other fuse in that they are installed in series with the power
source, but are designed to be relatively insensitive to current
and to open when their temperature exceeds the design point. A
valuable safety device in heated appliances.
3. How do I test a dryer thermal fuse?
First of all, understand that once a certain amount of current goes
through any kind of fuse, the fuse blows and can only be replaced,
not repaired. So then, the only test you really want to do is to
see if the fuse can still conduct electricity. Unplug the power
cable and disconnect either end of the thermal fuse. Connect any
cheap ohm meter to the loose end and the other end. If you get a
reading, you may consider the fuse to be good. Don’t have a meter?
In that case, you can use an old flashlight bulb (not LED), along
with a battery and a piece of wire to test the fuse. Press the base
of the bulb against one node of the battery while pressing the
opposite end of the battery to one of the 2 fuse connections. At
the same time, hold a test wire between the side of the bulb and
the other fuse wire. If the fuse is good, the light will turn on.
4. How do I know if my thermal fuse is blown?
Using a digital or analog multimeter, or other resistance-measuring
instruments, check the resistance across the thermal fuse
(preferably when it’s out of the circuit, which can affect the
reading), If you read continuity (in the range of several ohms or
less, depending on its rating), the fuse is still functional. If
you read an open circuit, the fuse is blown, and has to be
replaced.
5. How do you test a fuse using a multimeter?
Testing connectivity is the best way of testing a fuse. A fuse
works as long as its two terminals are connected by wire i.e. the
two terminals of the fuse are shorted.
If the connectivity test fails then it is sure that the fuse isn’t
working. However, there might arise a case if the fuse isn’t using
proper material. There might not be any connectivity, however,
testing the resistance between the two terminals would give a small
non-zero value. Even in such cases, we say that the fuse is
working. However, such cases rarely exist and if they do we don’t
consider as a good fuse (at least for the small power applications
like a household)
6. What is the function of the thermal fuse of an electric fan?
When the oil in the cheap sleeve bearings in the cheap shaded pole
motor gets gummy, the motor will start drawing more current and run
hotter. If the motor is not re-lubricated in a timely manner,
eventually the sleeve bearings will get stuck and the rotor will
fail to turn. This results in a locked-rotor condition and the
windings draw more current and produce more heat than they can
dissipate with no airflow over them to provide cooling. Eventually,
the enamel insulation degrades and gets hot enough to smoke,
possibly producing shorted turns that draw even more current.
The thermal fuse is a safety device to prevent the cheap motor from
actually catching on fire. Sometimes the fuse can be replaced and
the bearings can be relubricated to get another year or two of
service if the windings haven’t discolored from overheating, but
you can be sure that the end is near. You are better off getting a
fan motor with sealed ball bearings. They cost more but last much
longer, and usually give you a warning by making a rattling noise
when the bearings start to wear out rather than seizing silently.
7. What material is used for making electrical fuses and why?
Electrical fuses are generally made from materials having low
melting. It acts as a low resistance path when the current flowing
through it exceeds its rating by even a small amount. This is done
to protect an electrical device from getting damaged. Thus, it acts
as an overcurrent protection device. During faults, especially
short circuit faults, when heavy currents suddenly flow, the fuse
wire gets heated up and melts down, thereby preventing damage and
fires from occurring. The fuse wires in general are made of
nichrome, etc.
8. What is a fuse?
It’s a safety device used to provide overcurrent protection of a
circuit. Its main component is a metal wire
rip that melts when there’s too much current flowing through it and
thus interrupts the current. This element can be made of zinc,
copper, silver, aluminum, or some alloys. Fuse body is made of
ceramic, glass, fiberglass, molded mica laminates or molded
compressed fiber.
9. What is the difference between fuse and circuit breaker?
Fuse-it is such a type of device which breaks the circuit one time
when overcurrent in the circuit. you cannot break the circuit or
open-close according to your choice.
Breaker-it is such type of electrical equipment which breaks when
overcurrent, other faulty conditions in the circuit. you can easily
control the breaker for opening and closing the circuit ut is such
a type of automatic switch. Mainly the big breakers are mainly run
with the help of a relay.
10. What causes fuses to blow?
A fuse is a safety device that should protect the rest of the
circuit from (more) damage when there is a FAULT in the circuit.
This can be caused by:
component failure
wiring failure
placing a load in the circuit that exceeds the Circuits safe level.
Note that some circuits (example: motors) can have a very large
starting current and special (slow blow) fuses are designed for
this type of load.
wiring failure
placing a load in the circuit that exceeds the Circuits safe level.
Note that some circuits (example: motors) can have a very large
starting current and special (slow blow) fuses are designed for
this type of load.
is generally connected in series in the circuit when it is used.
Therefore, when choosing a thermal fuse, its rated current must be
greater than the current used in the circuit. Never allow the
current through the thermal fuse to exceed the specified rated
current. Before selecting the rated temperature of the thermal
fuse, you must understand and measure the temperature difference
between the temperature to be protected and the location where the
planting fuse is installed.
In addition, the length of the fusing time and the availability of
ventilation are also closely related to the selection of the rated
temperature of the thermal fuse.
