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 th...

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