Microswitch Also known as the trigger switch that is found on sealers. The microswitch is a small switch that when activated will allow the electrical circuit to complete, which in turn allows the sealing cycle to begin. You should be able to hear a "click" when the switch is activated (when the arm or jaw of sealer is brought down.)
Mounting SpringConnects the heating element to the base of the sealer. Conducts electricity to the element.