Product Categories
Product Tags
armored thermocouples sensor
blade Fuse Holder
Car blade fuse
Car Fuse
Ceramic Tube Fuse
Circuit Breaker
Disc Thermostats
Ds18b20 Temperature Sensor
electrical Fuse
Fast/slow-blow fuse
Fuse box-holder
Glass Tube Fuse
Inline Fuse Holder
Limit Snap Disc Thermostat
Mini Circuit Breakers
Motor overload protector
Motor thermal protection
NTC sensor
NTC thermistor sensor
PCB Mount Fuse Holder
PPTC Resettable Fuse
PT100 Temperature sensor
PTC thermistor
sensor connector harness
Sensor Probes & Cables
Slow Blow Micro Fuse
Surface Mount Fuses
Temp Cutoff Link
Temperature control switch
Temperature Fuse
Temperature Sensor
Temperature sensor cable
Temperature Sensor Probe
temp switch
Thermal cut-off
Thermal Cut out Switch
Thermal Fuse
thermal protector
Thermal switch
Thermistor Sensor Probe
SEFUSE NEC SF Cutoffs Thermal Fuse OEM/ODM Service
Category: thermal fuse
Tags: Thermal Cut out Switch, Thermal cut-off, Thermal Fuse
How to tell if a sefuse NEC temperature fuse (Thermal Fuse) is good or bad?
The following steps can be used to measure the quality of a temperature fuse (Thermal Fuse) :
Use a multimeter to measure the resistance value: Set the multimeter to the resistance value measurement position, and then connect two test pens to the two ends of the Thermal Fuse . If the fuse is not blown, its resistance value should be very small. If the fuse is blown, the resistance value will be a larger number. If you are not sure about the correct resistance value, you can refer to the product manual or consult the manufacturer.
Observe the color change: If the Thermal Fuse turns black or the resistance value is abnormally high, it needs to be replaced.
The following matters need to be noted during the measurement process:
Lead bending: When bending the lead, it should be bent from a part more than 6 mm away from the root, and the root and lead should not be damaged. Do not forcibly pull, press, or twist the lead.
Welding operation: When welding the lead, the heating humidity should be limited to a minimum, and be careful not to apply high temperature to the thermal fuse. Do not forcibly pull, press, or twist the thermal fuse and lead. After welding, it should be cooled for more than 30 seconds immediately.
Use conditions: Thermal fuses can only be used under the conditions of specified rated voltage, current and specified temperature. Pay special attention to the maximum continuous temperature that the thermal fuse can withstand.
Additional suggestions and common problems:
Replacing fuses: When a thermal fuse burns out, it needs to be replaced with a new fuse with the same voltage and rated temperature. Usually, thermal fuses are designed to be push-pull, so you only need to gently pull out the old fuse and insert the new one.
Regular inspection: When using electrical appliances, electronic equipment, and automobiles, it is very important to regularly check whether the thermal fuse is burned out.
Product Name | Thermal Fuse, Temperature Fuse, Thermal Cutoff |
Body Material | Plastic, Ceramic, Metal |
Rated Current | 1-30A |
Rated Voltage | 250V |
Lead Type | Axial, Radial |
Temperature | 70C-260C |
Application | Over-Temperature Protection |
Thermal cut-off fuses of different brands and types:
Contact Us
Waiting for your email, we will reply you within 12 hours with valuable information you needed.
RELATED PRODUCTS
250v 2a /10a Thermal cut link for Table fan/ Blender
Thermal fuse can sense the overheating generated by abnormal operation of electrical and electronic products, thereby cutting off the circuit to avoid fire. Commonly used in: hair dryers, electric irons, rice cookers, electric stoves, transformers, motors, water dispensers, coffee pots, etc. The thermal fuse cannot be used again after operation, and only operates once at the melting temperature.
thermal fuse and circuit breaker cutoff temperature
They are the same in that they can achieve short circuit protection. The principle of a thermal fuse is to use a current flowing through a conductor to cause the conductor to heat up. When the melting point of the conductor is reached, the conductor is melted so that the circuit-protected electrical appliances and lines are not burned.
Thermik Pressure Resistant Round Thermal Protector S01
The temperature switch (thermal protector) produced by THERMIK Company is characterized by its small size, extremely high mechanical stress resistance, high shock resistance, and excellent stability. PTC thermistor is characterized by small size, fast response, 4 layers of protection, and 3 heads connected in series. It can be buried in the three-phase coil of the motor and can protect different temperatures.