831704C4.MB

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Snap action, limit switches, such as the 831704C4.MB, are electromechanical devices used to detect presence of objects or position thereof. One example of an area of application is controlling an air-flow, where levels of pressure and temperature must be kept within certain boundaries. The working principle of the 831704C4.MB, as with other snap action limit switches, is based on the displacement of a sensing element touching the object or position to be detected, triggering the switch to close or open (depending on the corresponding configuration).

The 831704C4.MB, considered a general-purpose switch, can be used in variety of applications, such as for precision sensing of locomotive and automobile brakes, furniture, robotics and switches used for safety measurements. This switch is a two pole, transistor output, plunger actuator with a fixed 15A and a maximum rating of 250 Vac and 28 Vdc — making it well suitable for both low-level and high-level wiring. Its operating temperatures range from -13°F to +185°F (-25°C to + 85°C). This limit switch can be turned on and off manually, or mechanically, due to its fast, snap-action construction design.

This switch incorporates a one-piece molded actuator with a molded toggle action having a self-cleaning action. The 831704C4.MB has the ability to self-adjust to wear, with its moving parts surrounded by a durable dielectric material that prevents power fluctuation and shocks. This switch is designed to measure the contact opening and closing cycle for millions of cycles, with a maximum of 3ms. Furthermore, the actuator is designed to give tactile feedback to the user with an audible click.

Typical applications for the 831704C4.MB switch include locking mechanisms, doors, equipment monitoring, printing equipment, machines, electrical engineering, air-conditioners and industrial equipment. Despite being a general-purpose limit switch, the 831704C4.MB has the capacity to be used for specific tasks such as the detection of temperature, pressure, status and motor level control. Given its multiple use, it is accessible in various configurations, such as hermetically sealed, cable operated and as test equipment.

The 831704C4.MB switch is also available with both standard and low-profile mounting. Standard mount utilizes flat mounting surfaces, allowing easy installation and removal in areas with minimal space. Low-profile mount helps minimize the gap at the end of the actuator arm. This mount can also provide extra stability in installation and is ideal for high-temperature environments in applications like printing. Both mounting options also provide sealed o-ring units, preventing liquid and dust infiltration.

Because of its contact configuration, the 831704C4.MB snap action limit switch is typically used as a detection or position sensor in automation and control applications. The snap action of this switch is triggered when the environment or position changes and requires a reliable switch capable of responding quickly, repetitively, and accurately. Due to its high degree of general-purpose adaptability and its easy installation and removal in almost any application, this switch is a cost-effective option for various industrial purposes.

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