Page 1
Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 27-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 02018OT3E256JM
List Price : $2,413
Notes:
Performed by: Checked:
Close Coupled Pump : Three-Phase - "JM" Type - ODP - NEMA Premium
Page 2
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 256JM
Output : 20 HP
Frequency : 60 Hz
Poles : 4
Full load speed : 1770
Slip : 1.67 %
Voltage : 208-230/460 V
Rated current : 55.3-49.4/24.7 A
Locked rotor current : 311/156 A
Locked rotor current (Il/In) : 6.3
No-load current : 24.0/12.0 A
Full load torque : 58.5 lb.ft
Locked rotor torque : 260 %
Breakdown torque : 280 %
Design : B
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 12 s (hot)
Service factor : 1.15
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP23
Approximate weight : 295 lb
Moment of inertia : 2.6198 sq.ft.lb
Noise level : 60 dB(A)
Close Coupled Pump : Three-Phase - "JM" Type - ODP - NEMA Premium
No.:
Date: 27-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6309 Z-C3 6209 Z-C3 100% 0.82 93.0
Regreasing interval 20000 h 20000 h 75% 0.72 93.0
Grease amount 13 g 9 g 50% 0.63 91.7
Notes:
Performed by Checked
Page 3
PERFORMANCE CURVES RELATED TO RATED OUTPUT
Three-phase induction motor - Squirrel cage rotor
100
1.0 0.0
90
0.9
80
0.8
70
0.7
60
0.6
C
A
No.:
Date: 27-DEC-2012
C - Slip D - Current at 230V (A)
1.0
2.0
3.0
4.0
50
0.5
40
0.4
A - Efficiency (%)
B - Power factor
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Customer :
Product line :
Frame : 256JM
Output : 20 HP
Frequency : 60 Hz
Full load speed : 1770
Voltage : 208-230/460 V
Rated current : 55.3-49.4/24.7 A
Insulation class : F
B
D
Percent of rated output (%)
Close Coupled Pump : Three-Phase - "JM" Type - ODP - NEMA Premium
5.0
80
60
40
20
0
Locked rotor current (Il/In) : 6.3
Duty cycle : S1
Service factor : 1.15
Design : B
Locked rotor torque : 260 %
Breakdown torque : 280 %
Notes:
Performed by Checked
Page 4
5.0
CHARACTERISTIC CURVES RELATED TO SPEED
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 27-DEC-2012
10.0
B - Current related to rated current (I/In)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
A - Torque related to rated torque (C/Cn)
Customer :
Product line :
0 10 20 30 40 50 60 70 80 90 100
9.0
8.0
7.0
B
A
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Speed related to rated speed (%)
Close Coupled Pump : Three-Phase - "JM" Type - ODP - NEMA Premium
Frame : 256JM
Output : 20 HP
Frequency : 60 Hz
Full load speed : 1770
Voltage : 208-230/460 V
Rated current : 55.3-49.4/24.7 A
Insulation class : F
Notes:
Performed by Checked
Locked rotor current (Il/In) : 6.3
Duty cycle : S1
Service factor : 1.15
Design : B
Locked rotor torque : 260 %
Breakdown torque : 280 %
Page 5
1 2 3 4 5 6 7 8
A
B
C
D
E
F
2E
10.000
BA
4.500
P
11.812
ER
5.250
EL
1.750
d1
EUNC 1/2"-13
AJ
7.250
BC AH
A
12.130
D
6.220
T
2.165
EQ
0.630
S
0.250
t1
0.984
AK
8.500
5.250
2F
10.000
K
2.560
HD
14.369
ET
3.006
EP
1.750
t2
1.496
BD
8.858
B
11.732
G
0.787
H
0.531
U
1.249
R
1.110
C
23.902
BF
UNC 1/2"x13
J
2.520
O
12.204
AA
NPT 1 1/2"
EM
1.375
ES
2.559
Flange
FC-184
BB
0.250
Notes:
Performed by:
Checked:
Customer:
Close Coupled Pump : Three-Phase - "JM" Type - ODP - NEMA Premium
27-DEC-2012Three-phase induction motor
Frame 256JM - IP23
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