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Introduction

A rotary switch, also known as a rotary cam switch, is a type of switch used for switching electrical signals between two or more circuits. It consists of a cylindrical contact-bearing rotor in the centre and a stationary contact-bearing in the body, which are rotated to make a connection from one circuit contact to another. Its design and operation is similar to the toggle switch, but the rotor and armature are combined into one unit to create a single switch with multiple positions that can be easily manipulated. Rotary switches are commonly used in industrial and military applications, as well as in consumer electronics.

435987-1 Application Field and Working Principle

The 435987-1 is a type of rotary switch specifically designed for electronics applications. It is a single-pole, double-throw, multi-position switch; meaning it has only one input and can be in one of three different positions. When the switch is in position one, it will be connected to terminal one. When the switch is in position two, it will be connected to terminal two. Finally, when the switch is in position three, it will be connected to terminal three. The 435987-1 is designed to be fail-safe, meaning that even when the switch is in an indeterminate state—either between positions or with the shaft broken off—it will automatically revert to a safe position. This makes it particularly suitable for circuit protection or fault tolerance.

Construction

The 435987-1 is constructed of a plastic or die-cast aluminium body, with a stainless steel rotor shaft and contact points. The body is keyed to ensure it is installed correctly, and there are two mounting points for installation. The contacts are silver in colour and the contact points are nickel-plated to ensure reliable and low-resistance performance even under difficult environmental conditions. The contact points are also designed to self-clean during operation, which ensures a long and reliable service life for the switch.

Usage

The 435987-1 is commonly used in a large variety of applications, from industrial control to communications technology and switchboard systems. Its ability to be in multiple positions, and to remain in a fail-safe position when in an indeterminate state, makes it particularly useful for settings where the switch may be subjected to shock or vibration. It is also used in a variety of consumer electronics, from remote controls to antennas. The 435987-1 has a long life expectancy, and is rated for up to 10 million operations.

Conclusion

The 435987-1 is a type of rotary switch specifically designed for electronics applications. It is a single-pole, double-throw, multi-position switch, making it suitable for circuit protection or fault tolerance settings. It is constructed of a plastic or die-cast aluminium body, with a stainless steel rotor shaft and contact points, and is keyed to ensure it is installed correctly. The 435987-1 is commonly used in industrial control and communications technology, as well as in a variety of consumer electronics. It is rated for up to 10 million operations, making it a highly reliable switching solution.

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