412-12

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Rotary switches are extremely versatile and technically advanced components in the electrical and electronic industry which are used in a variety of applications where connection and disconnection of circuits needs to be controlled. The 412-12 rotary switch is a four-pole, 12-way switch designed for use in high current applications. In such applications, a switch with a very low contact resistance and excellent heat dissipation capabilities is essential in minimizing current losses or ensuring optimal circuits performance.

The 412-12 rotary switch consists of an externally mounted rotatable and indexable drum, an electromagnetic actuator and a housing containing the contact and rotor assemblies. The rotatable drum is basically a cylinder with twelve peripheral arcs, which are radially placed, evenly distributed and sequentially numbered. In the centre of the drum, the actuator is attached, which is also connected to the switch contacts by a set of moving links.

When the drum rotates an armature, housed in the actuator, is magnetized. The electromagnetic force of this magnetization attracts the central armature, causing it to move towards the drum. This attraction then locks the armature into the drum in one of the contacts and maintains contact until the drum is rotated further.

When the armature is locked into the drum’s arc, a pin on the armature make contact with an associated contact on the switch. As the drum rotates, the magnetic force increases and the armature is released from the drum into the next contact of the switch. As the armature moves from one contact to the next one, it carries the associated current to the new contact, thus providing a continuous current transfer when activated.

In order to protect the 412-12 rotary switch from extreme conditions, such as high temperature, moisture or dust, it is housed in a sturdy case which allows for quick and easy installation. The case is made of a high-grade plastic material, which is resistant to most corrosive chemicals, oil, and water. The case is also vented, which helps prevent the build-up of heat and allows the switch to be cooled faster.

The 412-12 rotary switch is used in a variety of applications that involve controlling power or signal in networks such as industrial automation, medical, security and military systems. In these applications, the switch makes it possible to easily control the flow of power and signals, enabling simple and efficient operation.

It is also used in industrial motor controls and LED lighting systems, as it allows differential current and voltage levels to be maintained in multi-phase systems. This makes the 412-12 switch very efficient and cost-effective for such applications. Furthermore, the switch also has a fast switching time and a high operational life, meaning that it can be used for various tasks without having to be replaced or repaired frequently.

The 412-12 rotary switch is an extremely versatile and dependable switch, and is capable of providing reliable and consistent performance in a wide range of applications. Its unique design and ability to handle large currents make it ideal for high-powered applications and it can be used effectively in various industrial, medical and military settings.

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