Connect industrial equipment to 30A, 120/208V three-phase power with this Hubbell Twist-Lock® grounding male plug. Its ribbed nylon housing provides a secure grip and resistance to impact and chemicals, while the cord grip protects terminations from excess strain. Funnel-shaped wire entries simplify termination, and an integral dust shield helps keep contaminants out of the wiring chamber during indoor, dry-location installations.

Specifications

Brand Hubbell Wiring Device-Kellems
Device Type Industrial Insulgrip® Twist-Lock® grounding male plug
NEMA Configuration L21-30P
Current Rating 30 A
Voltage and Phase 120/208 V AC, three-phase WYE
Poles and Wires 4-pole, 5-wire grounding
Termination Pressure terminal screws; terminals identified in accordance with UL 498
Conductor Size #16 to #8 AWG stranded copper wire only
Cord Diameter Range 0.350–1.150 in
Mounting Cord-mounted
Colour Black and white
Housing and Cord Clamp Nylon; ribbed housing with impact and chemical resistance
Blades Brass
Assembly Screws Nickel-plated steel
Terminal Clamp Nickel-plated cold-rolled steel
Terminal Retainer Clear polycarbonate
Terminal Screws #10-32 brass; Phillips, slotted or Robertson drive
Current Interrupting Certified for current interrupting at full rated current
Dielectric Strength Withstands 2,000 V minimum
Flammability HB or better per UL 94 / CSA 22.2 No. 0.17
Moisture Resistance IP20 suitability
Environmental Conditions Indoor dry locations unless protected by additional means
Operating Temperature Maximum continuous 75°C; minimum −40°C without impact
Dimensions (L × W × H) 2.33 × 2.33 × 2.75 in; standard size
Weight 0.35 lb
UPC 783585039633