Which term represents a two-pole, single-throw switch?

Which term represents a two-pole, single-throw switch?

• A. DPDT
• B. Push Button Switch
• C. Relays
• D. DPST

Answer: (D)

In switch terminology, a switch’s “pole” is how many separate circuits it can control, and the “throw” is how many connection paths each pole has. A two-pole, single-throw switch therefore controls two independent circuits, and each circuit has only one way to be connected when the switch is on. Both poles operate together with one actuator, giving two closed contacts in the ON position and two open contacts in the OFF position. This exact combination is described by the term Double Pole Single Throw. It’s different from DPDT (two poles with two throws per pole), SPST (single pole, single throw), or SPDT (single pole, double throw), and it’s a specific category of switch rather than a generic push-button or relay.

In switch terminology, a switch’s “pole” is how many separate circuits it can control, and the “throw” is how many connection paths each pole has. A two-pole, single-throw switch therefore controls two independent circuits, and each circuit has only one way to be connected when the switch is on. Both poles operate together with one actuator, giving two closed contacts in the ON position and two open contacts in the OFF position. This exact combination is described by the term Double Pole Single Throw. It’s different from DPDT (two poles with two throws per pole), SPST (single pole, single throw), or SPDT (single pole, double throw), and it’s a specific category of switch rather than a generic push-button or relay.