Typical Types of Switches (Explanation)

SPST Switch (Single Pole, Single Throw): Controls one circuit with one active position.

SPDT Switch (Single Pole, Double Throw): Controls one circuit with two active positions.

DPST Switch (Double Pole, Single Throw): Controls two separate circuits with one active position each.

DPDT Switch (Double Pole, Double Throw): Controls two separate circuits with two active positions each.

Three-Way Switch: Allows control of a single light or fixture from two different locations.

Four-Way Switch: Used with two three-way switches to control a light or fixture from three or more locations.

Toggle Switch: Manual switch using a lever or toggle to open or close contacts, available in various configurations.

Rotary Switch: Uses a rotating knob or lever to select between multiple positions, with varying poles and throws.

Push Button Switch: Operated by pressing a button to open or close contacts, available in momentary or latching types.

Limit Switch: Detects the presence or absence of an object or limits the movement of a mechanical device, commonly used in industrial applications.

Micro Switch (Snap-Action Switch): Small, sensitive switch activated by minimal force, used in appliances, control panels, and automotive applications.