Used to increase wire room in conjunction with FXCS Cover Assemblies and FXB Back Box.
When using FXB spacers, application of hazardous area derates control station to Class I Div. 1 & 2, Class II, III Grps. C,D,E,F,G hazardous locations only.
Killark FXB SPACERS are used to increase the room for wiring in conjunction with an FXCS Cover Assembly mounted to an FXB back box.