Ningbo Xinyuan Electronic Co., Ltd.

China Manufacturer with main products: Thermal Fuse, Thermal Cutoffs, Thermal Link, Temperature Fuse, Thermal Protector Fuse

Home  >Products Catalog > RH3 > Non-resettable sensitive temperature ceramic case thermal fuse

Non-resettable sensitive temperature ceramic case thermal fuse

FOB Price: 0.15 - 0.25 USD/Piece
Supply Ability: 900,000 Piece/Pieces per Month
Shipping: Shenzhen
Payment Terms: L/C, T/T, Other, Paypal
In Stock
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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa
Place of Origin: Zhejiang in China
Packaging Details: Standard export packing

Quick Details

  • Safety Standards: IEC
  • Breaking Capacity: High
  • Usage: Thermal
  • Model Number: RH3
  • Brand Name: SANYUAN
  • Safety Standards: IEC
  • Case Material: Ceramic

Specifications

 

  

 

No

  Qty

Specification

A

    2

High temperature silicon fabric wire, Length and gauge are optional

B

    2

If connectors attached, sleeving might be  provided

    2

Connectors are optional

 

Model Number and main parameters of thermal cutoff

Model No

Tf

(Function tem)

Th

(Holding temp)

Tm

(Max Temp)

Rated voltage

Rated current

CB

TUV

RH 150

150C

110C

200C

250V

10A

Y

Y

RH 185

180C

145C

250C

250V

10A

Y

Y

RH 200

200C

150C

250C

250V

10A

Y

Y

RH 230

230C

190C

280C

250V

10A

Y

Y

RH 250

250C

227C

300C

250V

10A

Y

Y

RH 320

320C

250C

350C

250V

10A

Y

Y

 

 

Test method of thermal cutoff:

   An indicator under current less than 10mA will be used for checking circuit continuity.

1 Rated function temperature(Tf):

   Put the samples into the professional oil oven, and remain 5 ~ 10 minutes under temperature Tf-20C. After that, increasing the temperature at the speed of 0.5~1K/min until the fuse cuts. The off temperature should be inside of tolerance.

2 Holding temperature (Th)

   Put the samples inside of an incubator and the applied voltage should be less than rated voltage, current applied at 10A. Then, maintain the samples for 168 hours under Th-6C. After that, the thermal fuse should not function or damaged.

3 Humidity test

   Put the samples inside a sealed room under temperature 40±2C,and relevant humidity 90%~95% for 48 hours. After that, repeat test 3.1

4 Heat impact test

Put samples inside of a fridge at -18C for 15 minutes, then take it out under room temperature for 5 minutes. After that, put the samples to an incubator at temperature Tf-20C for15 minutes. Then, take it out under room temperature 5 minutes again. Repeating the above tests for 3 weeks, then test the contact resistance of thermal fuse, the contact resistance between two leads should be less than 50mΩ.

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