Both units have 4 wires exiting the bottom through a” non-metallic connector”

Both units can be installed as follows:

1. using flex conduit and connector feed the 4 wires (3 red and 1 green) to the   panel and connect the 3 red wires
to a breaker and the green wire to the ground bar

2. using a fused or non-fused disconnect box interface unit into electrical system
-When installing the 3200 use a 30 amp three pole breaker
-When installing the 3400 use a 40 amp three pole breaker

In either method of install, and with both units, make certain the power is off until the unit is installed completely, then
turn the power on (throw the breaker on, or engage the disconnect box) and check to make certain light is on.

If the light is not on, check your breaker, ground it, and disconnect the box for secure connections

Either unit will work in a 208/480 environment 50/60 HERTZ