Hubbell 33r Hubbell wiring devices hbl460r7w 60 amp 480 volt 3-pole 4-wire Vintage hubbell wiring devices catalog #33r 1978
Hubbell Wiring Devices HBL460R7W 60 Amp 480 Volt 3-Pole 4-Wire
Receptacle hubbell wiring volt watertight iec
Vintage Hubbell Wiring Devices Catalog #33R 1978 | eBay
Hubbell Wiring Devices HBL460R7W 60 Amp 480 Volt 3-Pole 4-Wire