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9. Technical data
9.1 Minimum water flow requirements
for submersible pump motors
Casing or
Motor
sleeve I.D.
diameter
[inches]
4
5
4"
6
7
8
Notes:
•
A flow inducer or sleeve must be used if the
water enters the well above the motor or if
there is insufficient water flow past the motor.
•
The minimum recommended water velocity
over 4" motors is 0.25 feet (0.08 m) per
second.
9.3 Electrical data
4-inch, single phase, 2-wire motors (control box not required)
Volt
Hp
Ph
S.F.
[V]
0.5
1
230
1.60
0.75
1
230
1.50
1
1
230
1.40
1.5
1
230
1.30
Volt
Hp
Ph
S.F.
[V]
0.5
1
230
1.60
0.75
1
230
1.50
1
1
230
1.40
1.5
1
230
1.30
Min. flow past
the motor
[gpm]
1.2
7
13
21
30
Grundfos submersible pump motors - 60 Hz
Amperage
Full
Lock
S.F.
load
rotor
amps
4.5
34.5
6.0
6.9
40.5
8.4
8.0
48.4
9.8
10.0
62.0
13.1
Grundfos submersible pump motors - 60 Hz
4-inch, single phase, 3-wire motors
Amperage
Full
Lock
S.F.
load
rotor
amps
4.5
21.5
6.0
6.9
31.4
8.4
8.0
38.0
9.8
9.4
45.9
11.6
9.2 Guide for engine-driven generators
in submersible pump applications
Minimum kilowatt rating of
generator for three-wire
submersible pump motors
Motor
[hp]
Externally
regulated
0.33
0.5
0.75
1
1.5
Notes:
•
Table is based on typical 176 °F (80 °C) rise
continuous duty generators with
35 % maximum voltage dip during start-up
of single-phase motors.
•
Contact the manufacturer of the generator to
assure the unit has adequate capacity to run
the submersible motor.
•
If the generator rating is in KVA instead of
kilowatts, multiply the above ratings by 1.25
to obtain KVA.
Line-to-line
Full load
resistance
[ohms]
Blk.-Yel.
Power
Eff.
factor
Delta
62.0
76.0
5.2 - 6.3
62.0
75.0
3.2 - 3.8
63.0
82.0
2.5 - 3.1
64.0
85.0
1.9 - 2.3
Line-to-line
Full load
resistance
[ohms]
Blk.-Yel.
Power
Eff.
factor
Delta
62.0
76.0
4.7 - 5.7
62.0
75.0
3.2 - 3.9
63.0
82.0
2.6 - 3.1
69.0
89.0
1.9 - 2.3
[kW]
Internally
regulated
1.5
1.2
2.0
1.5
3.0
2.0
4.0
2.5
5.0
3.0
KVA
Max.
code
thrust
Red-Yel.
**
(lbs)
R
770
N
770
M
770
L
770
KVA
Max.
code
thrust
Red-Yel.
**
(lbs)
15.8 - 19.6
L
770
14 - 17.2
L
770
10.3 - 12.5
K
770
7.8 - 9.6
H
770
13
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