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Electrical
TABLE I: Motor, Switch, & Cord Specifications
Model
Motor
Number
HP
MRGD200MC2
2
MRGD200MC3
2
MRGD200MC4
2
Factory Connected for 230V/3Ø as shown
Z1
Y1
X1
230 Volt
Power Supply
White
Red
Z1 Y1 X1
U1
V1
Motor
Windings
Figure 2: 230 Volt 3 Phase Wiring Connections
Connect for 460V as shown.
460 Volt
Power Supply
White
Red
W2
V2
U2
Z1
Y1
X1
Z1 Y1
U1
W1
X1
V1
Motor
Windings
Figure 3: 460 Volt 3 Phase Wiring Connections
Motor
Full
Voltage
Load Amps
230/60/1
13.0
230/60/3
8.2
460/60/3
4.1
Z2
Y2
X2
Black
V2
U2
X2 Y2 Z2
W1
W2
Motor
Windings
Black
X2
Y2
V2
U2
W2
X2 Y2 Z2
Motor
Windings
Individual
Cord
Branch Circuit
Length
Required (Amps)
in ft. (m)
20
20 (6.1)
15
20 (6.1)
15
20 (6.1)
Control Panels
motor before connecting controls or power supply.
Adhere to local electrical codes governing pump and
control installations.
A control panel is not included with the pump.
Install simplex or duplex control panel (purchase
separately) for proper pump operation. A full range of
controls and switches is listed in our catalog.
If a Myers control panel is not used, install a control
panel with circuit breaker or fused disconnect as
required by local code. Use magnetic starters with
ambient compensated overload protection. Three phase
units require three line protection; single phase units
require only one line protection. Inadequate protection
voids the warranty.
Control Panel Overload Adjustment – Three
Phase
NOTICE: See your control panel installation and
operating instructions before adjusting overload setting.
Set the overload protective device to the nameplate full
load current.
Size the overload protective device so that the trip
current is 115% of the nameplate full load current.
Z2
Minimum
Discharge
Water Level
Adapter
in inches (mm)
Size
22 1/2 (572)
1 1/4 NPT
19 1/2 (496)
1 1/4 NPT
19 1/2 (496)
1 1/4 NPT
Risk of electric shock. Ground pump and
4
Max Temp.
Rating (°F)
Intermittent
122
122
122
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