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Rotary Switches

A rotary switch, or "rotary switch", is an electromechanical switch that controls an electrical circuit when a device is rotated. It consists of a rotor or turntable with a contact arm or wiper that passes over contacts that are spaced around the circumference of the rotor or turntable. The contact arm, or wiper, makes contact with the contacts while the rotor or turntable is rotated. Some rotary switches also have contacts on the outer edge of the rotor, allowing it to work as a basic switch.

44M45-01-1-03N application field and working principle

The 44M45-01-1-03N rotary switch is designed for use in automotive, industrial and automation applications. This switch is designed to be durable and reliable and is rated for up to 40A at 600VAC, making it ideal for high-current applications. It can also be used for low-power switching at up to 4A at 12-30 VDC. This rotary switch has a 3 pole, 4 position configuration and is UL recognized.

The 44M45-01-1-03N is a four- pole position rotary switch with each pole allowing connection between any two of the four positions. Each of the four positions has two contacts, making a total of eight contacts. By connecting a separate input and output wire to each of the contacts, electrical currents can be routed according to the desired configuration. When the rotor is turned, the contact arm, or wiper, moves across the contacts to make the desired connection.

This rotary switch is also equipped with a quadcopter-style mechanism that prevents arcing and improves switch operation. This mechanism is created through the use of four spring-loaded cams that are placed on the rotor’s periphery. The protrusion of the cams on the rotor stabilizes the rotor during operation, thus minimizing wear and tear on the contact arm and its associated contacts.

The 44M45-01-1-03N also features a positive- opening contact design. This enhances the operating life of the contacts and reduces downtime due to contact erosion and switching errors. The positive opening design also prevents the occurrence of arcing or burning of the contact surfaces.

In addition to its durable construction, the 44M45-01-1-03N rotary switch offers a wide range of applications and is suitable for both high and low load applications. It is an ideal switch for automotive, industrial and automation applications. It is also suitable for use in harsh environments due to its UL approved design, increased contact life and reliable switching operation.

The 44M45-01-1-03N rotary switch is a versatile, reliable and durable switch that offers a wide range of applications. Its quadcopter-style mechanism ensures high switching reliability and improved contact life, while its positive opening contact design enhances its operational life. The 44M45-01-1-03N is therefore suitable for automotive, industrial and automation applications.

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