Appleton Push Buttons, Switches & Signaling Devices
Appleton push buttons, selector switches and signaling devices are designed to perform in extremely hazardous environments so well that they're practically synonymous with safety, reliability, and performance in the places where those attributes are most critical. Their pilot lights, signal towers, beacons, buzzers, strobes and horns provide visual and audible indications as to the status of equipment in industrial settings.
Appleton makes these devices for use in control, monitoring, and indication of anything happening with human or machine interface in hazardous areas where explosive gases, vapors, or dust might be present. They're heavy-duty materials like aluminum or stainless steel, and they are built to take anything short of a direct hit and keep the circuitry inside safe and functional.
FAQs
What environments are Appleton push buttons and signaling devices designed for?
They are designed for industrial and hazardous environments—such as refineries, chemical plants and manufacturing—where explosion-proof or dust-ignition-proof operation is required.
What certifications do Appleton control stations have?
Appleton control stations are certified for use in Class I, Groups C & D and Class II, Groups E F G hazardous locations, and are UL listed, factory-sealed and resistant to harsh conditions.
What should I know about installing Appleton devices?
The devices must be installed properly into correct enclosures, with correct thread size, sealed surfaces and following torque and maintenance instructions to preserve explosion-proof integrity.
What are ideal Appleton signaling products for a machine control panel?
Ideal Appleton signaling products for a machine control panel include LED pilot lights, audible horns, and visual beacons that provide clear status indication and reliable alerts in hazardous or industrial environments.
What information is available for maintaining Appleton pilot devices?
Maintenance information for Appleton pilot devices includes detailed installation, inspection, and replacement procedures outlined in their instruction sheets, ensuring safe operation and preservation of explosion-proof integrity.
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.