Rotary switch

Examples of common use rotary switch is serves to select a range of measurements on an AVO meter or a multimeter, or to choose a power supply voltage. This type of switch has one or more contacts are surrounded by a ring with 12 stationary contacts. Such switches are made with the composition different contacts. These arrangements can be either 1 pole of 12 lines, 2 poles 6 lines, 3 poles 4 lines or 4 poles 3 lines.
The symbol of rotary switch with 2 poles 6 lines shown bellow

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