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Rotary Switches

Rotary switches are a type of mechanical switch which provides multiple options of operation or circuit selection in an economical way as well as with a good reliable mechanism. They are popular when a user needs to select several options in a switch, while occupying a minimum amount of space. This category includes several switch options including rotary selector, guard operated, and limit switches.

71B30-01-2-05S application field and working principle

The 71B30-01-2-05S rotary switch can be used in many applications including motorized equipment, electrical appliances, automation systems, adjustable lighting systems, and industrial power distribution systems. There are two main types of rotary switches: the normally open (NO) type and the normally closed (NC) type. The 71B30-01-2-05S is a normally open rotary switch with 10 positions and 10 single-pole-double-throw (SPDT) contacts.

The working principle of the 71B30-01-2-05S rotary switch is fairly straightforward. A rotating shaft is connected to a set of internal gear segments which move the contact bridge in and out of engagement with the different contacts. As the shaft is turned, the gear segments move the contact bridge along the track, engaging one of the contacts at a time. Each contact position is marked with a number on the switch’s exterior, corresponding to the number of the contacts it is engaging.

In order to prevent accidental contact, a guard is usually included on the 71B30-01-2-05S rotary switch. The guard\'s purpose is to physically shield the contact bridge from the operator’s fingers, preventing accidental or unintended contact. Since the guard contacts only the gear segments and not the contact bridge, the guard does not affect the operation of the switch.

The 71B30-01-2-05S rotary switch is a good choice for many applications due to its compact size and its ability to provide multiple positions in a single device. It is also reliable and easily adjustable.

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