MRK112-BB

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Rotary switches are electrical switches which are operated by rotating a control knob in order to connect specific contacts. They are used in a variety of applications, from low voltage to high voltage, from digital circuits to audio systems. The MRK112-BB is a rotary switch designed for use in industrial and other general-purpose settings. This article will discuss the application field and working principle of this switch.

The MRK112-BB is a single-pole, double-throw (SPDT) switch offering 10 positions, with position 1 being connected to contact A and position 10 being connected to contact B. This rotary switch is rated for currents up to 250VAC, 35°C ambient temperature, and damp heat. It is available with a choice of five different actuators, each featuring a different number of detent positions (12, 16, 20, 24, or 32), and a choice of a flat handle, a joystick-type handle, a t-shape handle, or a knob handle.

MRK112-BB can be used in a variety of fields, such as motor control, lighting control, home appliance control, audio/video system control, as well as for security equipment, industrial panel control, and other general-purpose applications. The switch can also be used for volume control, site selection, and frequency selection in professional audio systems. In addition, due to its mechanical construction, it is relatively resistant to dust and vibration, ensuring reliable performance in harsh conditions.

The working principle of the MRK112-BB is based on a rotating contact arm assembly. This assembly consists of several pairs of contact blades held together by a steel arm that is able to rotate within a predetermined range. As the arm is rotated, the contact blades move within the rotor slots and make contact at the appropriate position. The arm is held in place by a detent mechanism which ensures that it remains in the selected position. When the switch is in the off position, a spring-loaded return arm moves the contact arm assembly back to its initial position.

In addition to its robust mechanical construction, the MRK112-BB switch also offers a number of electrical features. It has an operating voltage of 250VAC, a maximum current rating of 2A, and insulation resistance of 1000M ohms. It also offers protection against electric shock, overload, as well as mechanical and environmental stresses. Additionally, it is UL and CSA approved, as well as RoHS compliant.

The MRK112-BB rotary switch is a highly versatile and reliable switch that is perfectly suited for a variety of applications, such as motor control, lighting control, audio/video system control, and home appliance control. It is designed for high voltage, low power applications, and offers protection against electric shock and environmental stress. With its robust construction and its range of electrical features, it is an ideal choice for any application where a reliable rotary switch is required.

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