Killark is a manufacturer of plugs and receptacles, designed for heavy-duty industrial use in wet, harsh and hazardous locations.  The versamate nema 4x metallic pin & sleeve product range includes 30, 60, 100 and 200 Amp plugs, receptacles and connectors with a full range of back boxes.  Popular options include reverse service and polarization.  Also available is an explosion-proof model.  The IEC models include non-metallic plugs and switched receptacles plus stainless steel clean room receptacles for hazardous and wash down locations.

Hubbell is a manufacturer of plugs & receptacles for industrial, commercial and residential use.  The plugs and receptacles they make for industrial and commercial use include hospital use, extra-heavy duty, pro series snap connect, heavy duty specification grade, tamper and weather resistant, decorator receptacles and more.  Their residential line includes tamper resistant for child safety, go green models with occupancy/ vacancy sensors, single toggle swithes, 3 and 4 way toggle switches and more.

Universal Smart Electric Corporation is a manufacturer of straight blade receptacles.  USE offers a full line of 15,20,30 and 50 Amp receptacles available in residential, commercial and industrial grades.  They come in a wide variety of colors, different wiring options are included and all are UL Listed.  The residential grade is self-grounding, 15A/125V, 5-15R, with push in and side wired.  There are 20 different models to choose from in the industrial grade including duplex, single and flush mount.

Mennekes is a manufacturer of fused and non-fused receptacles.  The MSR Series Receptacles comply with UL Standard 1686 C1 configurations assuring interchangeability with other manufacturers and the units meet OSHA requirements for lockout/tagout (Reg. 1910.147) and prevent arc-flash.  Their receptacles are rated either 30A or 60A and 600VAC.  Receptacles comply with UL Standard 1686 C1 configurations.

Farmtek is a manufacturer and distributor of plugs and receptacles serving the agricultural, horticultural, building and retail trade communities.  Farmtex has single and three phase locking receptacles and plugs, auto grip plugs and connectors and auto grip corrosion resistant plugs and connectors available.  Their single phase have 15 to 30 amp and 125 to 250 volts, three phase are 20 and 30 amps with 250 to 480 volts and the auto grip are 15 to 20 amps with 125 to 250 volts.