Leviton 20 Amp 120/208V 3-Phase 4-Pole 5-Wire Pin And Sleeve Connector With Screwless Clamp Assembly NSF Industrial Grade Watertight Blue (520C9WLEVA) Tier8 Dimming happens at the socket

Dimming happens at the socket itself — useful for table lamps

Penn Union Copper Compression Lug Standard Crimp Area Two Hole Tongue With Inspection Window 450 Kcmil (BLU045D)

and the open frame keeps sightlines clear across the room

or blue (200 lumens) chosen at installation

250 With Mesh (RSR-45520-E)

Leviton 20 Amp 120/208V 3-Phase 4-Pole 5-Wire Pin And Sleeve Connector With Screwless Clamp Assembly NSF Industrial Grade Watertight Blue (520C9WLEVA) Tier8 Dimming happens at the socket20 Amp, 120 208 Volt 3 Phase, 4P, 5W, LEV Series North American Rated IEC 60309 1 & 60309 2 Pin & Sleeve Connector with Screwless Clamp Assembly, Industrial Grade, NSF Certified, IP66 67 68 IP69K, Watertight BLUE LEV Series IEC Pin & Sleeve Devices are designed to simplify your installation, endure the harshest environments and improve safety and productivity: Completely screwless back clamp cuts installation time and adds additional dust guard