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BASIC SERVICE
29
Electrical Service (Cont.)
Motor Connections —
1. Models MH-60, MH-6N, and MH-6L are available in either single phase or 3 phase voltages.
2. Motor rotation was set at the factory. For three phase machines, reversing the motor direction
is done in the control cabinet by reversing the wires L1 and L2 on the disconnect side of the
main electrical connection block. For single phase machines, motor rotation is changed at the
motor connection plate on the rear of the single phase motor (if necessary).
Refer to Fig. 20 for the proper wiring of the pump motor for single and three phase voltages.
SINGLE PHASE - LOW VOLTAGE
L1
L2
4
2
8
J
LINE
LINE
3
SINGLE PHASE - HIGH VOLTAGE
2
8
J
LINE
LINE
L1
L2
4
3
Figure 18
Pump Motor Wiring Diagrams
208-240V
THREE PHASE - LOW
VOLTAGE
480V
THREE PHASE - HIGH
VOLTAGE
575V ONLY
THREE PHASE
654
987
321
LINE
654
987
321
LINE
321
LINE