AVM34359-A

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Snap action, limit switches are a key component in modern mechanical and electrical systems. An AVM34359-A is a type of snap action limit switch particularly suited to low-voltage control circuits. In this article we will explore its application fields and working principle.

An AVM34359-A snap action limit switch is a miniature mechanical device with two distinct electrical contact positions. In its snapped state, it can make or break an electrical circuit. It works by a spring-loaded arm and plunger, which is triggered by either a mechanical movement or a magnet. This action snaps the switch from one position to another.

AVM34359-A snap action limit switches are rated for use with AC and DC circuits up to 48 volts, making them popular choices where low-voltage contact control is required. The operational temperature range is -20°C to 70°C, and ambient humidity is limited to 70%.

Common applications of AVM34359-A snap action limit switches include controlling the on/off state of home appliances, use as door open/closed safety switch, turning on/off lighting, direction control of machines and appliance, as well as environment and fire safety systems.

The functioning of an AVM34359-A snap action limit switch can be broadly expressed as follows. The plunger or arm of the switch is pushed by either mechanical movement or an applied magnetic force. As the plunger is pushed the spring is compressed, closing the electrical circuit, and thus allowing current to flow through the device.

As the plunger is released, the spring decompresses, stopping the current flow and restoring the device to its original state. Depending on the type of switch, the current may be off when the plunger is pushed, or the plunger can operate in both directions. In the latter case, a balancer is added to the striker, so that the plunger is pushed in either direction and restored to the same position.

AVM34359-A snap action limit switches are also useful for providing overcurrent, overvoltage, or over temperature protection in consumer, industrial, automotive, and lighting applications. This sort of snap action can shut off the power supply of an excess voltage, current, or temperature condition is detected, helping to reduce the risk of electrical system damage and fire.

In summary, AVM34359-A is an ideal choice for low-voltage control circuits and offers a range of applications in home appliances, direction control, environment, and fire safety systems. Its robust construction, reliable operation and easy installation also make it one of the most popular types of limit switches available.

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