Installing an iVAC Contactor
August 11, 2020
iVAC Technical Support: 800-775-5579 Ext. 4
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white wire in the cable to one of the remaining L terminals. Again it doesn’t matter which one. The
third terminal will be a spare if your dust collector is a single phase machine. You will need the third
terminal only if your dust collector is a 3 phase machine.
Place the dust collector motor cable through the other large cable gland and secure it by tightening the
gland cover nut. Connect the green ground wire to the ground bar in the bottom of the contactor
enclosure. Connect the black wire in this cable to the T terminal that matches the L terminal with the
black wire. (For instance, if you connected the black wire of the source cable to terminal L1, connect the
black wire of the dust collector motor cable to terminal T1.) Connect the white wire of this cable to the T
terminal that matches the L terminal with the white wire.
Put the cover back on the iVAC Contactor.
Alternate method
Alternatively, you can perform this installation from the motor end of the cable that connects the
magnetic switch to the dust collector’s motor. In this case, open the cover of the junction box on the
dust collector motor. Note which colour of wire in the cable goes to which wire or terminal in the motor
junction box or better, take a picture. Remove any tape on the connections and remove the wire nuts.
If your dust collector has a terminal block here, remove the wires of the motor cable from the terminals.
Disconnect the green ground wire and remove the cable from the junction box. Feed the now free end
of this cable into the iVAC Contactor enclosure through the gland and secure it by tightening the gland
cover nut. Connect the wires in this cable to the L terminals of the iVAC contactor. Connect the green
ground wire to the ground bar in the bottom of the contactor enclosure.
Connect a new piece of cable to the dust collector motor using the wire nuts and fresh tape if desired.
Make sure to connect the black and white wires to the same motor wires or terminals as the original
cable. Replace the cover on the junction box.
Place the new motor cable through the other large cable gland of the iVAC Contactor and secure it by
tightening the gland cover nut. Connect the green ground wire to the ground bar in the bottom of the
contactor enclosure. Connect the black wire in this cable to the T terminal that matches the L terminal
with the black wire. (For instance, if you connected the black wire of the source cable to terminal L1,
connect the black wire of the dust collector motor cable to terminal T1.) Connect the white wire of this
cable to the T terminal that matches the L terminal with the white wire.
If your dust collector is a 3 phase machine then you will have to use all three sets of contacts in the iVAC
Contactor.
Put the cover back on the iVAC Contactor.
