312-8E

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Rotary switches are some of the most popular and widely used switches. From toggle switches to momentary switches, rotary switches are extremely versatile and can be found in a wide range of applications. Among these types of switches, the 312-8E rotary switch is particularly notable for its ability to perform in high-volume and harsh environments. This article will discuss its application field and working principle.

What is a 312-8E Rotary Switch?

A 312-8E rotary switch is a general-purpose, 8-position switch with 8 switching contacts. It is typically used on printed circuit boards, in commercial and industrial panel assemblies, and as motor starters and control switches in other applications. It has a reliable, long-life design and is able to perform in various environmental conditions. It is highly customizable, with various mixing shafts, actuator spacers, and other options to meet the most demanding needs.

Application Field of 312-8E Rotary Switch

312-8E rotary switches are commonly used in large scale industrial and commercial electronics, such as:

• Lighting controls and timers
• Building automation systems
• Automobiles, including panels, headlights, and hood locks
• Computer hardware and networking devices
• Medical devices and control systems
• Consumer electronics, such as home theaters and stereo systems

These are just a few of the many applications for the 312-8E switch.

Working Principle of 312-8E Rotary Switch

The 312-8E switch is a rotary type of switch, which means that when the actuator is turned, a set of contacts switch. This type of switch has a simple yet reliable design, with a spindle or shaft that can be turned to actuate the contacts. The switch has 8 switching positions, with contact sets for each position. When the switch is turned, two contact sets are connected in each position.

The switch is operated by an actuator which is typically made of plastic, but can also be made of metal. The actuator is either screwed or pushed onto the switch shaft, which then actuates the switch. The contact switching is accomplished via a mechanism such as a wiper and stationary contact, or a pair of cams and linkages. As the actuator is rotated, the positions set by the internal mechanisms are engaged, which in turn activate the contacts.

The 312-8E switch is designed for easy mounting on a printed circuit board. It has four terminals on the board which connect the switch to the customer\'s system. The actuator is then attached to the switch shaft, which is sealed from the environment by a rubber O-ring. The entire switch assembly is protected from dust and moisture by a special sealant, making it ideal for use in harsh environments.

Conclusion

The 312-8E rotary switch is a versatile, reliable, and long-life switch that is suitable for a variety of applications. With 8 switching positions and a reliable design, it is ideal for use in high-volume and harsh environments, such as those found in lighting control, building automation, and medical applications. Its easy mounting on a printed circuit board and sealed switches offer excellent performance in tough environments.

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