ST121D02

Toggle Switches

A toggle switch is a type of electrical switch that changes state when operated. This type of switch commonly features a flip lever or rocker arm connected to one or more electrical contacts in order to control the flow of electricity. The most common type of toggle switch is the single pole, single throw (SPST) type, which features two metal strips coming into contact with each other when the switch is flipped.

ST121D02 Application Field and Working Principle

The ST121D02 toggle switch is a high quality, general-purpose switch commonly used in automotive, marine and industrial applications. This unit is SPST type with 12A at 125V of electrical rating. It is made of rugged, weather-resistant materials, making it highly dependable in harsh environments.

ST121D02 toggle switch includes two contact pieces: a movable contact member and a stationary contact member. The stationary contact member is fixed, while the movable contact member is connected to the toggle switch lever, which is also connected to an actuating mechanism. When the toggle switch is in the "off" position, the movable contact member is separated from the stationary contact member, and thus, no electrical current is allowed to pass between them. When the toggle switch is switched to the "on" position, the movable contact member comes into contact with the stationary contact member, and thus, elect

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