Drum Switch

ON or OFF?: SPST switches are either on or off. But some double throw switches are ON-OFF-ON, meaning they have an off position in the middle where neither position has continuity from common. This is a Drum Switch, used for motor reversing, where the motor should fully stop first.

ON or OFF?: SPST switches are either on or off. But some double throw switches are ON-OFF-ON, meaning they have an off position in the middle where neither position has continuity from common. This is a Drum Switch, used for motor reversing, where the motor should fully stop first.

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