Mini 2809 Pushbutton Power Switch Wiring

I have wired the Mini 2809 Pushbutton Power switch according to the instructions. When I press the Momentary Open PB switch nothing happens. No output voltage. What am I doing wrong?
I have a volt meter on the output and the input is a variable DC power supply set at 3.7 VDC.


The minimum voltage for that version of the switch is 4.5V. Does the switch work if you use a higher voltage source? If you need a switch that functions at 3.7V, you could use the low voltage version of the switch instead.