According to Meltric Corporation
…For many industrial and commercial applications, a general purpose receptacle may have many different types of equipment plugged into it. There may be inductive loads one time and resisted loads another, or there may be a combination of both at the same time. Even with dedicated circuits there is the need for long term, reliable equipment that will provide safety and dependable performance for many years. With these criteria in mind, Meltric designs and manufactures commercial and industrial plugs, receptacles, and connectors that provide an extremely high level of performance…