Therm-O-Disc’s G4 257C Microtemp® Thermal Fuse - Highest Open & Hold on the Market

Posted on Monday, June 5th, 2017

Hold Temperature (Th) of the industry leading MICROTEMP G4 257C has been increased to 220ºC to ensure applications with higher normal ambient temperature requirements will have added assurance of maintained operation for a minimum period of 168 hours without opening, as tested per IEC 60691. 

Features Include:

  • Holding Temperature - 220C - Industry Leading
  • Agency Approval - UL, VDE, CSA, CCC
  • Evaluated in laboratory conditions to maintain continuity for 1,000 hours at continuous thermal fuse body temperature of 220C.


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