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Thermal fuse series

RY Series thermal fuse
Product Description

High quality thermal fuse 10A 250V

General introduction of thermal fuse:

 

RY series thermal fuse has a certain range of temperature setting and bearing capacity to select. When the device is not working properly and will reach to the set max temperature, then the thermal fuse will cut off circuit to prevent security incidents arise. Thermal fuse mainly used in home appliances and Electrical Components (e.g. transformers, solenoids, AC adopters) overheating protector.

 

The dimensions of thermal fuse:


 

 

Size

A

B

C

D

E

Standard   Lead

25±1.0

11±1.0

32±1.0

(Customizing)

φ1.0±0.1

or

φ1.2±0.1

 

 

φ4.0±0.1

Long   Lead

38±1.0

 Note: Unit:mm

 

  Definition and model description of thermal fuse:

Rated function Temperature(TF): The thermal fuse shall be exposed in the test oven or oil bath, to Tf-12K or as declared by the manufacturer, but not higher than 2K below the lowest tolerance. Then, the ambient temperature should be stabilized for 10 minutes. After that, increasing the temperature at the speed of 0.5°C/min until the thermal fuse cuts off the circuit. The test current should be ≤10mA. Then the temperature is Tf, its function temperature. According to IEC60691, thermal fuse has to trip off inside the tolerance of +0/-10°C.(If use PSE standard, the tolerance is +/-7°C).

 

Model

Rated Voltage AC(V)

Rated Current AC(A)

TF×××C

250

10

TF×××C

250

16

TF×××C

125

15

TF×××C

125

10

 

 Construction of thermal fuse :

 

Note:

1. Lead A   2. Epoxy resin   3. Ceramic bushing   4. Trip spring    

5.Star Contact

6. Compressing spring   7. Disc       8. Thermal pellet   9. Case   10. Lead B

 

Material and plating of thermal fuse 

 

Parts

Material

Plating

Lead   A

Copper

Tin   Plated

Lead   B

Copper

Tin   plated

Case

Brass

Silver   plated

Star   contact

Silver

——

Epoxy

Epoxy

——

Thermal pellet

Organic   material

——

Spring

Stainless   steel

——

 

 Working condition:

Do not expose this product in a high humidity environment, or submersed in water or solvent; Do not use it in gases such as sulfite gas or nitric oxide gas.

Please check below thermal protector/thermal switch we provide:




Manufacturer Photos:





Please contact me for more about bimetal thermal protector/thermal switch/temperature protector.

 

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