Installation Procedures
Page 5
Page 6
Installation Procedures
9. Making the Wiring Connections
Single-Phase 2-wire
Wiring Diagram
for GRUNDFOS Motors
Black
Black
Pressure
Switch
Pump & Motor
Quick Disconnect
Green
10 2- Wire Pump
with Ground
A capacitor or control box should NEVER be
connected to a Redi-Flo3 submersible pump.
WARNING!
To reduce the risk of electric shock during operation of this pump
requires the provision of acceptable grounding. If the means of
connection to the supply connected box is other than grounded metal
conduit, ground the pump back to the service by connecting a copper
conductor, at least the size of the circuit supplying the pump.
SINGLE-PHASE 60 HZ
Maximum Cable Length Motor Service to Entrance
Motor Rating
Copper Wire Size
VOLTS
HP
14
12
10
8
6
4
2
0
00
115
1
/
3
130
210
340
540
840
1300
1960
2910
1
/
2
100
160
250
390
620
960
1460
2160
230
1
/
3
550
880
1390
2190
3400
5250
7960
1
/
2
400
650
1020
1610
2510
3880
5880
3
/
4
300
480
760
1200
1870
2890
4370
6470
1
250
400
630
990
1540
2380
3610
5360
6520
1
1
/
2
190
310
480
770
1200
1870
2850
4280
5240
10. Cable Sizing
Fig. 5
11. Motor Cable
Redi-Flo3 pumps are specifically designed to be used with Grundfos SQE-
NE Tefzel motor leads. Standard SQE-NE Tefzel motor leads are
available between 25 and 300 foot lengths in 5 foot increments. Custom
lengths longer than 300 feet are available in 10 foot increments up to 600
feet from the factory.
