I have a "Little Giant" condensate pump VCMX-20 model. This pump comes with a "safety switch". The pump turns on when the water level gets to 1.2 inches. The "safety switch" will "do something" when the water level reaches 2.2 inches.

Right now I don't have the "safety switch" connected… because I don't know how to connect the "safety switch". I want to connect the "safety switch" to turn off a wall outlet (used by a dehumidifier).

The manual is pretty short when describing the "safety switch":

3. Safety switch: The safety overflow switch should be connected to a
   ClassII low voltage circuit. To control a thermostatic circuit the COM
   and NO connections from the safety switch are to be wired in series
   with the low voltage thermostat circuit to shut down the heating/AC
   circuit. The COM and NC switch contacts may be used to actuate a
   low-voltage alarm circuit (connected in series) if the heating/cooling
   system can not be disrupted. The safety switch comes from the factory
   with leads connected to the COM and NO switch terminals.

NOTE: When
installing or replacing the safety switch, make sure that it is
positioned between the two ribs on the motor cover (Figure 5).

For
hook-up of NC circuits see Figure 5.

The "safety switch" has two wires hanging out.

I opened up the "safety switch" because the wires aren't labeled and found out there is:

• one wire labeled "NO"
• one wire labeled "COM"
• one connector labeled "NC" without a wire
• 
• 

How do you connect the "safety overflow switch" wires to turn off a wall outlet??

The manual says to connect the "safety switch" to a "class-II low voltage" device. So maybe there is a "class-II voltage" device that controls the "wall outlet plug".