Appleton Push Buttons
Push buttons from Appleton are industrial-grade switches that have been carefully engineered for reliable performance and precise operation, even in the harshest and most dangerous environments. They are built for extremes—for use in manufacturing plants and refineries and in the chemical processing business. In those places, if you don’t have dependable push buttons, you’re not going to have a safe and efficient operation.
Push buttons in those environments are most often used to control the kind of machinery that keeps the various processes flowing—motors that drive different machines, contactors that control power to various systems, and magnetic starters that can be likened to the big red button someone at a remote location might press to restore power after a momentary outage.
A variety of push buttons and selector switches are available for use in conjunction with contactors or magnetic starters for remote control of motors in hazardous locations. Pilot lights are available to provide visual assurance that an electrical function is being performed at a remote or local location. Control stations house a variety of push buttons and selector switches for easy centralized control.
FAQs
Are Appleton push buttons made for hazardous locations?
Yes, Appleton push button devices are available in explosion-proof and watertight models designed for use in Class I and II, Division 1 and 2 hazardous locations.
What kinds of ratings do Appleton push buttons have?
Depending on the product model, Appleton push buttons feature NEMA 3, 4, 4X, or 7/9 enclosures to protect against dust, water, and explosive gases.
What configurations are available for Appleton push buttons?
Appleton push buttons are available in momentary, maintained, illuminated, and emergency stop configurations to suit a variety of control needs.
What are Appleton push buttons used for?
Appleton push buttons are used to safely start, stop, or control machinery and electrical equipment in industrial and hazardous environments.
Do Appleton push buttons come with pilot lights or selector switches?
Yes, Appleton offers complete control assemblies that can include push buttons, pilot lights, selector switches, and emergency stop controls in a single enclosure.
Maintaining NEMA 4 Rating When Making Enclosure Penetrations
Cutouts are very common when modifying enclosures for push buttons, indication lights, conduit entries or mounting hardware. Cutting into an enclosure runs the risk of eliminating the protective nature of the NEMA rated attributes. Proper steps must be followed in order to preserve the NEMA rating of an enclosure.
Devices mounted to the enclosure must have the same NEMA rating as the enclosure.
This means that if the devices are installed to the manufacturer's specifications, they will be able to maintain the NEMA rating of the enclosure.
Water tight conduit hubs must be used when running wire through a cutout in an enclosure.
There are many different types of conduit hubs that are used to secure conduit to an enclosure. However, only certain conduit hubs are rated for a watertight seal. By using water tight hubs, the NEMA rating of the enclosure is maintained.
Bonded washers are necessary when mounting hardware to an enclosure.
If standard mounting hardware is used, the NEMA rating of the enclosure will no longer be maintained. Bonded washers have rubber gaskets that make a watertight seal around the drilled hole. It is also important to make sure the material used for the bonded washer matches the material of the enclosure. Stainless steel enclosures require stainless steel bonded washers.