- Blue 40mm (1.5in.) deep back box
- Back box is required for surface mounting of Button/Switch Activation Types #2, #5, #6, #7, #8 & #9
- If replacement mounting accessories are required for Button/Switch Activation Types #0, #1, #3 & #4, KIT-71100A-B is required, with the use of x2 KIT-102720-B