3 IN Trade Size Hub, Hole Dia. Min3.48 IN, Hole Dia. Max 3.63 IN, Panel Thickness Min. 0.06 IN, Panel Thickness Max. 0.31 IN, Insulated Throat, Grounding Style
Standard:
UL Standard: 514B; UL Listed: E14814; CSA Standard: C22.2 No. 18.3; CSA Certified: 065178; NEMA: FB-1