A20642MNCB

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Rotary switches are small mechanical components used to select one out of several electrical circuits in an electrical system. The A20642MNCB is a rotary switch often used in industrial applications. The switch has sixteen mechanical positions, each of which correspond to a unique electrical circuit. It is highly durable, vibration-resistant and has a DIN rail or surface mount mounting type, meeting NEMA ratings of TC-1 for dust-tight, oil-tight and splash-proof building coverings.

The A20642MNCB utilizes a spring-return mechanism where the switch is returned to a predetermined position after actuation. This feature makes it ideal for applications where repeatability is important. It comes in both single-pole, double-pole and triple-pole configurations, and can have up to 16 positions per pole. This makes the switch highly versatile, as it can be used for a variety of applications in multiple industries.

The A20642MNCB has a range of operating conditions, including temperatures ranging from -40°C to +85°C, and can be used in 110VAC and lower voltages. The switch has a rated operating temperature of up to 400°C, and is rated for a maximum current of 5A at 24VDC. It is UL approved and meets a variety of standards including VDE, CSA, EN and RoHS.

The A20642MNCB utilizes a combination of a spiral cam and rotary actuator to sense and control contact interface, with the stub shaft becoming a driving element for the spring-return mechanism. When the switch is actuated, the spiral cam rotates in one direction and makes contact with internal gears in the switch, causing them to rotate and open or close the appropriate contacts. When the switch is released, the force of the spring-return mechanism returns it to the predetermined position.

In summary, the A20642MNCB is a highly reliable, vibration-resistant rotary switch with multiple pole configurations and sixteen positions per pole. It utilizes a spring-return mechanism and a combination of a spiral cam and rotary actuator to sense and control the contact interface, offering extended durability and reliability in multiple industrial applications.

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