• Part: DF77S
  • Description: DF SERIES 15 AMP THERMAL CUTOFFS
  • Manufacturer: Thermtrol Corporation
  • Size: 136.65 KB
DF77S Datasheet (PDF) Download
Thermtrol Corporation
DF77S

Key Features

  • Various temperature settings
  • Miniature size
  • Current rating: 15 Amp/125 Vac, 10 Amp/250 Vac
  • Economical
  • Accurate
  • Large inventory; same day shipping
  • Various mounting options The Thermal DF Series Thermal Cutoffs are single action devices that open when a preset temperature is reached. They do not reset. The active component of a thermal cutoff is an electrically insulated thermal pellet. This pellet holds a spring loaded contact against a fixed contact under normal operating temperatures. (See Fig. 1) When the preset temperature of the cutoff is reached, the pellet liquifies, the springs relax, and the spring loaded contact is moved away from the fixed contact, opening the circuit. (See Fig. 2) The DF Series is the right choice for applications requiring an inexpensive limit protector with 15A capability.