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The SET Series of 3/4" (19mm) bimetal disc temperature controls offers proven reliability in a versatile, cost-effective design. Can handle loads up to 25 amps at 240VAC.


  • Includes 3977767 and NW309F
  • See Cross Reference tab for additional numbers
  • Single shot fuse
  • Welded construction for integrity of current-carrying components.
  • WARNING: Prop 65 info
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High Limit Temp: 250°F / 121°C
Fuse Temp: 309° +/-6°
Direct replacement specialty thermostats and fuses
SDS Product Sheets Cross Reference Information
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Manuals Application Sheets Software
no entry SET197_app_001.pdf
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Replacement Part:3977767
Part Description:
Manufacturer :Whirlpool®

Replacement Part:3399693
Part Description:
Manufacturer :Whirlpool®

Replacement Part:3977767
Part Description:
Manufacturer :Whirlpool®

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