Customer :
Three-phase induction motor - Squirrel cage rotor
No.:
Date: 27-DEC-2012
TECHNICAL PROPOSAL
Product line :
Catalog Number : 02036XT3E256T
List Price : $3,083
Notes:
Performed by: Checked:
Three-Phase : Explosion Proof - NEMA Premium
DATA SHEET
Three-phase induction motor - Squirrel cage rotor
Customer :
Product line :
Frame : 256T
Output : 20 HP
Frequency : 60 Hz
Poles : 2
Full load speed : 3530
Slip : 1.94 %
Voltage : 208-230/460 V
Rated current : 50.6-46.2/23.1 A
Locked rotor current : 286/143 A
Locked rotor current (Il/In) : 6.2
No-load current : 13.8/6.90 A
Full load torque : 29.4 lb.ft
Locked rotor torque : 200 %
Breakdown torque : 250 %
Design : B
Insulation class : F
Temperature rise : 80 K
Locked rotor time : 26 s (hot)
Service factor : 1.15
Duty cycle : S1
Ambient temperature : -20°C - +40°C
Altitude : 1000
Degree of Protection : IP54
Approximate weight : 357 lb
Moment of inertia : 1.4499 sq.ft.lb
Noise level : 75 dB(A)
Three-Phase : Explosion Proof - NEMA Premium
No.:
Date: 27-DEC-2012
D.E. N.D.E. Load Power factor Efficiency (%)
Bearings 6309 C3 6209 Z-C3 100% 0.89 91.7
Regreasing interval 15797 h 18447 h 75% 0.86 91.7
Grease amount 13 g 9 g 50% 0.79 91.0
Notes:
Performed by Checked
PERFORMANCE CURVES RELATED TO RATED OUTPUT
Three-phase induction motor - Squirrel cage rotor
100
1.0 0.0
C
90
80
70
60
50
40
0.9
0.8
0.7
0.6
0.5
0.4
A
B
No.:
Date: 27-DEC-2012
C - Slip D - Current at 230V (A)
1.0
2.0
3.0
4.0
5.0
80
60
40
D
A - Efficiency (%)
B - Power factor
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Percent of rated output (%)
Customer :
Product line :
Frame : 256T
Output : 20 HP
Frequency : 60 Hz
Full load speed : 3530
Voltage : 208-230/460 V
Rated current : 50.6-46.2/23.1 A
Insulation class : F
Notes:
Three-Phase : Explosion Proof - NEMA Premium
20
0
Locked rotor current (Il/In) : 6.2
Duty cycle : S1
Service factor : 1.15
Design : B
Locked rotor torque : 200 %
Breakdown torque : 250 %
Performed by Checked
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
B
A
Speed related to rated speed (%)
Three-Phase : Explosion Proof - NEMA Premium
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
Frame : 256T
Output : 20 HP
Frequency : 60 Hz
Full load speed : 3530
Voltage : 208-230/460 V
Rated current : 50.6-46.2/23.1 A
Insulation class : F
Notes:
Performed by Checked
Locked rotor current (Il/In) : 6.2
Duty cycle : S1
Service factor : 1.15
Design : B
Locked rotor torque : 200 %
Breakdown torque : 250 %
1 2 3 4 5 6 7 8
A
B
C
D
Notes:
E
2E
10.000
J
2.520
S
0.375
D
F
6.250
C
24.923
Flange
FD-317
BB
0.203
A
12.126
K
2.559
N-W
4.000
G
0.817
AA
NPT 1 1/2"
AJ
12.500
2F
10.000
P
12.224
U
1.625
O
12.352
d1
A 4
AK
11.000
B
11.732
ES
2.756
R
1.406
HD
14.439
d2
A 4
BD
14.000
BA
4.250
depth
0.375
AB
11.063
H
0.531
T
2.087
BF
0.828
Performed by:
Checked:
Customer:
Three-Phase : Explosion Proof - NEMA Premium
27-DEC-2012Three-phase induction motor
Frame 256T - IP54
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