OPD-AR20

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The OPD-AR20 is an adjustable snap action, limit switch that is designed for operation in harsh environments. The OPD-AR20 is a cULus approved, dust-tight and corrosion proof device that is designed for use in harsh conditions such as outdoor, corrosive, and explosive environments. The OPD-AR20 is designed for use as a limit, control, or safety switch in industrial and commercial applications.

The OPD-AR20 features a snap action bimetallic element that can be adjusted on site to change the actuation point and reset time. This versatile switch can be used in a variety of applications such as over temperature and pressure protection, motion and flow control, level control, material presence and absence monitoring, and end-of-travel monitoring. The snap action mechanism makes the switch ideal for applications requiring rapid and reliable switching action.

The working principle of the OPD-AR20 is based on a simple and robust design. The switch consists of a housing, an actuator head, an electrical contact, and a snap action bimetallic element. When the actuator is pressed, the bimetallic element flexes and the contact is opened or closed. The contact can be adjusted by turning a screw on the actuator head, allowing for precise control of the switch actuation point.

The OPD-AR20 is designed for operation in temperatures ranging from -40°C to 85°C and a maximum current of 7A. The contacts are rated for operations up to 250VAC, with a maximum switching capacity of 3A 250VAC. The OPD-AR20 is cULus approved for a minimum of 10,000 operations, making it an ideal choice for applications in harsh and corrosive environments.

The OPD-AR20 offer reliable and accurate switching action, making it an ideal choice for a wide variety of applications such as process control and safety monitoring. The adjustable snap action limit switch is designed for long-term durability and operation in harsh environments, while providing precise control of the switch actuation point.

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