1.Used widely. 2.low cost 3.certification:UL 4.Wraparound design is moided of high inpact,chemical-resistant nolon 1, Meet UL Standard2.Wraparound design is molded of high impact,chemical-resistant3.Heavy-duty wraparound steel yoke4.Terminal screw :brass combination phillips/slotted/ROBERSON binding head accects up to 10 #5.Easily accessible break-off tab for two -circuit wireing6.Self-grounding ...