Hubbell L1530P Hubbell-Pro 30amp 3-Phase 250v Black Nylon Locking Plug, 3-Pole, 4-Wire Grounding

Locking Devices, SELECT SPEC Twist-Lock.®, Commercial/Industrial, Male Plug, 30A 3-Phase Delta 250V AC, 3-Pole 4- Wire Grounding, L15-30P, Screw

Hubbell HBL2721 Locking Plug, 30 amp, 3 Phase, 250V, L15-30P

ELEGRP 30 Amp 125-Volt/250-Volt NEMA L14-30P Locking Plug

Independent Electric

Leviton’s Industrial Grade Locking Devices are built to provide unparalleled quality and superior performance in the most severe industrial settings.

Leviton 2720 30 Amp, 250 Volt 3-Phase, Flush Mounting Locking Receptacle, Industrial Grade, Grounding, V-0-MAX (Black)

Locking Devices, Industrial, Female Connector Body, 30A 3-Phase

Locking Devices, Twist-Lock®, Industrial, Female Connector Body

Legrand Pass & Seymour L1530PCC Turnlok Industrial Spec Grade

Locking Devices, Twist-Lock®, Safety Shroud, 2-Gang Surface Mount

Leviton 30 Amp 250-Volt 3-Phase Locking Grounding Plug, Black

Search Wiring Device - Kellems

Hubbell L1530C Electrical Connector Assembly

Hubbell-Wiring L1530P 4 Wire 3 Pole Polarized Locking Plug 250

Hubbell HBL2721 Locking Plug, 30 amp, 3 Phase, 250V, L15-30P

Watertight Devices, Twist-Lock® Plug, 30A, 3 Phase 250V AC, 3 Pole