Installation
Wire Connections at the Explosionproof
Motor (Motor Code D)
Install the wiring at the motor as follows:
1. Open the motor’s electrical box.
2. Install wiring system with proper connections to
the motor electrical box.
3. Connect the green ground wire to the ground
screw.
4. For 460V Wiring: Connect wire L1 to T1, L2 to
T2, and L3 to T3, and bridge the other wires, as
shown.
T1
T2
T3
L1
L2
L3
T4
T7
T5
T8
T6
T9
Figure 7 Connections for 460V Wiring
5. For 230V Wiring: Bridge the wires as shown.
Then, connect L1 to T1/T7, L2 to T2/T8, and L3
to T3/T9.
T1
T7
T2
L1
L2
L3
T8
T3
T9
T4
T5
T6
Figure 8 Connections for 230V Wiring
6.
Connect thermostat wires P1 and P2 to external
overload detection. Thermostat is NC (normally
closed).
7. Close the motor electrical box. Torque the
screws to 20 in-lb (2.3 N•m).
Wire Connections at the Variable Frequency
Drive (VFD)
NOTE: Follow the instructions in the VFD
manufacturer’s manual.
Install the wiring at the VFD as follows:
1. Connect the wires to the motor. See
Electrical Connections, page 16
.
2. Open the VFD’s electrical box.
3. Install strain reliefs in both ports at the bottom of
the VFD box.
4. Connect the green ground wire to the ground
screw.
5. Connect the wires from the motor terminals to the
matching terminals in the VFD box, as shown.
U
/T1
V
/T2
W
/T3
PE
PE
PES
PES
PES
PES
PES
PE
Figure 9 Wire Connections from the Motor to the VFD
3A5132F
17
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