800H PB,Type 7&9 Selector Switch,2 Position Selector Switch,KB6 Cam,Standard KB7 Cam,None,No Contact Blocks,No Position 2 Contact Block,No Position 3 Contact Block,No Position 4 Contact Block,T171,No Guards on Terminals,Maint., Lock Both, Std. Key,Not 3 Position Lock,Not 4 Position Lock