AH74556559-A

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Snap Action, Limit Switches are a type of switch that opens and closes at pre-determined positions. This not only prevents them from becoming stuck but also reduces any wear and tear on the switch itself. The AH74556559-A is an industrial switch used to operate an array of applications and comes with two different conductive outputs.

This switch is a latching switch, which means that the switch remains in either the open or closed position, until reset manually by turning off and on the power supply. The latch mechanism on the AH74556559-A utilizes both an internal mechanical pressure spring, and a actuator plunger, allowing for 100,000 switching cycles before it requires further service. This prevents any abrasion or oxidization to the device, making it an ideal choice for industrial applications.

Working Principle of the AH74556559-A

The working principle of the AH74556559-A is based on a pressure-spring system. When the pressure of the actuator plunger is applied to the laser-welded pressure spring, the contact points on the device are forced together, thus forming a circuit. This completes the current, switching on the device. When the pressure is removed, the spring doesn’t return to its original shape, allowing for the contact points to remain together.

The AH74556559-A employs a double-break, double-make contact configuration, ensuring reliable operation in a wide range of hazardous working environments. This device also sustains high repeatability over as many as 10 million cycles, with a max electrical ratings of 5A at 250VAC. This switch contains safety shutter guards that can prevent any accidental contact with the live parts, thereby ensuring maximum safety.

Application Field of the AH74556559-A

The AH74556559-A is primarily used in industrial applications, such as machinery and machinery testing, automated test equipment, robotic machines, medical devices, cranes, conveyors and more. Due to its compact design and latching action, it is also often used in harsh environments because it helps prevent any dust or grime from getting inside and impairing the device’s performance. Additionally, because it is weather resistant, it can be used outdoors.

The AH74556559-A is available in one- and two-way configurations, allowing for either switch actuation from the device itself or from both external and internal devices. It has an operating temperature range of -20 to +70 degrees Celsius, and is UL and EAC approved. Its compact housing size allows for easy and compact mounting, while its wide variety of actuator types give users the greatest configuration options.

In short, the AH74556559-A is an industrial switch that is perfect for a wide variety of heavy-duty applications. Its latching action, combined with its high electrical ratings and wide operating temperature range make it suitable for even the most extreme conditions. Furthermore, its double-break, double-make contact configuration provides a reliable operation even in the most hazardous of environments.

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