MRA112-A

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Rotary Switches is a type of switch made up of a set of rotating buttons for activating different electrical circuits. It is a simple and reliable switch with applications in a wide variety of industries, from home electronics to medical equipment and process control applications. The MRA112-A is an example of a rotary switch, designed for use in applications requiring precise control, precise voltage, low power, accurate and repeatable operation, and low cost.

The MRA112-A is a single-pole and single-throw (SPST) rotary switch rated for a maximum current of 10 amperes and a maximum voltage of 75 volts. It features four star wheels that rotate clockwise to select one of the four independent switching positions. It has an open construction and is made of a corrosion-resistant brass alloy, making it suitable for use in both indoor and outdoor applications. The rotational angle of the switch is adjustable to provide the exact position desired. In addition, the switch has a dielectric strength of 1KV and an insulation resistance of greater than 1000M.

The MRA112-A is an ideal choice for applications where the setting must remain consistent even over long periods of time. It can be used in medical equipment to control the temperature and humidity of incubators, in electromechanical applications to control the speed of a mechanical device, or in process control applications, such as controlling the speed of a conveyor belt or for switching onboard emergency lights on and off. It can also be used in pressure measurement applications or to select a desired mode in electronic control systems.

The working principle behind the MRA112-A is relatively simple. When it is mounted to a panel, a setting knob is rotated to turn the inner star wheels within the switch. The rotation of the star wheels turns a set of contacts that connect two or more points, thus allowing electricity to flow through the switch and activate its corresponding output. The spring return mechanism ensures that when the knob is released, the star wheels return to their original position and the contact is broken. This resetting feature ensures that the switch is always in the same position and will not accidentally change its setting.

The MRA112-A provides a simple yet reliable solution for applications requiring precise and repeatable control. Its design makes it suitable for use in harsh environments, and the adjustable rotational angle allows the user to select the exact position desired. Its low cost and simple operation make it an excellent choice for a wide range of industrial and medical applications.

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