The Allen-Bradley 800G-XBA Hazardous Locations Contact Block is a 30 mm base-mount accessory for the 800G push-button family that provides two dry contacts: 1 normally open and 1 normally closed, in a non-illuminated configuration. It is designed to accompany non-illuminated 800G operators in hazardous-location environments and expands push-button stations with an auxiliary contact path. The 800G-XBA is the standard 1NO-1NC contact block in the 800G series; a related explosion-protected variant exists (800G-XBA-EX), which is a separate model.
