Appleton Industrial Plugs & Receptacles

Appleton industrial plugs and receptacles are engineered to provide safe, reliable, and durable connections for electrical equipment in demanding environments. Built to handle harsh industrial conditions, these devices are designed with rugged housings, corrosion-resistant materials, and precision-engineered contacts to ensure consistent performance. They are widely used in facilities where downtime, power interruptions, or unsafe connections could compromise operations, such as in manufacturing plants, chemical processing facilities, and oil and gas installations.
The design of Appleton plugs and receptacles emphasizes both safety and efficiency. Many models feature explosion-proof or watertight construction for hazardous location use, while others incorporate mechanical interlocks that prevent disconnection under load, reducing the risk of arc flash or equipment damage. Their ease of installation, secure locking mechanisms, and compatibility with a wide range of voltage and amperage ratings make them versatile solutions for powering heavy-duty equipment, motors, and portable devices.
AC Grounding Basics: Grounding Series (Part 4)
The National Electrical Code (NEC) states that electrical systems must be grounded to a point that the maximum voltage, to ground underground conductors, does not exceed 150 volts. It also states that any 3-phase 4-wire, Y configurations and Delta configurations have the neutral wire grounded as well. These requirements cover any electrical systems ranging from single-phase 120 volts, all the way to 3-phase 480 volts AC. The conductor that needs to be grounded in these types of systems will always be the neutral wire.
A bonding conductor is needed between the grounded conductor and the equipment, grounding the conductor to the metallic enclosure of the main electrical service. It is important to make sure that a properly sized conductor is used to accommodate the potential surges that may occur in the electrical system. When grounding in a separately derived AC system, which is a system where components such as a generator can have the grounded conductors, where continuity is possibly interrupted by a transfer switch, it is important to make sure that the grounding conductor is bonded to the equipment grounding conductor of the metallic chassis on the load side of the electrical service through the use of a main bonding jumper. When continuity is not being interrupted on the load side, then it is critical to make sure that there is no bond between the neutral wire or grounding conductor and the metallic chassis of the electrical service. This will allow the main bonding to occur at the main service panel entrance point.