What are the physical dimensions of the BD4 Quad Occupancy Detector?
The longest dimension is 3.48 inches.
The shortest dimension is 1.03 inches.
Height at bridge rectifiers .842 inches and the height with the block monitor installed is 1.062 inches.
Remember to allow for wire clearance at the screw terminal end (for the block detection wires) and also allow for vertical clearance for the DS1 and LED1 plug connections at the other end.