KC17A7.001NLS

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Rotary Switches - KC17A7.001NLS Application Field and Working Principle

Rotary switches are multiple-pole, multiple throw switches which are most commonly used for selection or for selecting two or more options. As a rotary potentiometer, this type of switch is used for controlling a variable resistance or for audio control. They are available in two styles: momentary and maintained. Momentary rotary switches can be found in door bells and intercom systems, while maintained rotary switches are used for transmitting signals from radio receivers to tuners, and also in telecommunication devices.

The rotary switch KC17A7.001NLS is an electromechanical switch that rotates in order to set different circuits. It is an SPST switch, meaning that it is a single pole, single throw switch. It is typically used in low voltage circuits and only requires up to 0.5 watt of power.

This switch has 3 positions: Pos 1, Pos 2 and Off. The external lever is made of a high-impact ABS material and is connected to the switch body. It is designed with a high mechanical strength and a long life span. It has a dielectric strength of 1000V for 50HZ for one minute and also possesses an actuation torque value of 10mN.

The working principle of the rotary switch is based on the contact action of two components. The first component is the stationary part which consists of a post and a plate. The plate has an electrically conductive part which is divided into two parts; one part has contact pins which are connected to the stationary part and another part with contact connections. The second component is the rotary selector which consists of multiple contacts.

When the switch is in the off position, the stationary part and the rotating part are both in the same electrical state. When the switch is set in either the Pos 1 or Pos 2 position, the contact pins on the stationary part and the contact connections on the rotary selector will make contact and an electrical circuit is established. It is important to note that in order for the electrical circuit to be established, both parts must be in close mechanical contact, as otherwise the electrical contacts cannot make contact.

In conclusion, the KC17A7.001nls is a high quality rotary switch with three positions, Pos 1, Pos 2 and Off. It has a dielectric strength of 1000V for 50HZ and an actuation torque value of 10mN. It is constructed with a high mechanical strength and a long life span. It is typically used in low voltage circuits and only requires up to 0.5 watt of power. The switch works by establishing an electrical circuit through contact between the stationary part and the rotating part.

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