The elements of a switch which move together or apart to mechanically complete or interrupt an electrical circuit. Cross-points increase reliability for low voltage circuits, and can extend reliable switch duty to millions of operations. Cross-points also optimize contact pressure, and are less susceptible to closure interference by foreign matter. Imperfect action of a snap switch, in which the circuit fails to close when the plunger reaches the operating or release point. Usually greater in high-amperage switches.
Output is proportional to the pressure difference between the two input sources.
A switch having two independent circuits operated by a single actuator. DPDT switches typically contain two common, two normally open, and two normally closed terminals. Undesirable change in output over time which is not a function of any change in input pressure. An imprecise reference to almost any low energy circuit. There is no general agreement as to what current or voltage values constitute a dry circuit.