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M1228T

20/8.9HP, 1760/1160RPM, 3PH, 60HZ, 286T, 4046

Product Information Packet PDF

Ship Weight 330.000 LB
UPC 781568116517

Specs

Catalog Number M1228T
Enclosure OPSB
Frame 286T
Frame Material Steel
Frequency 60.00 Hz
Motor Letter Type Three Phase
Output @ Frequency 20.000 HP @ 60 HZ
8.900 HP @ 60 HZ
Phase 3
Synchronous Speed @ Frequency 1200 RPM @ 60 HZ
Voltage @ Frequency 460.0 V @ 60 HZ
Agency Approvals CSA
UR
Ambient Temperature 40 °C
Auxillary Box No Auxillary Box
Auxillary Box Lead Termination None
Base Indicator Rigid
Bearing Grease Type Polyrex EM (-20F +300F)
Blower None
Current @ Voltage 24.000 A @ 460.0 V
Design Code A
Drip Cover No Drip Cover
Duty Rating CONT
Electrically Isolated Bearing Not Electrically Isolated
Feedback Device NO FEEDBACK
High Voltage Full Load Amps 18.0 a
Front Face Code Standard
Front Shaft Indicator None
Heater Indicator No Heater
Insulation Class F
Inverter Code Not Inverter
KVA Code H
Lifting Lugs Standard Lifting Lugs
Locked Bearing Indicator No Locked Bearing
Motor Lead Exit Ko Box
Motor Lead Termination Flying Leads
Motor Lead Quantity/Wire Size 6 @ 10 AWG
Motor Type 4046M
Mounting Arrangement F1
Number of Poles 4
6
Overall Length 23.81 IN
Product Family General Purpose
Pulley End Bearing Type Ball
Pulley Face Code Standard
Pulley Shaft Indicator Standard
Rodent Screen None
Service Factor 1.15
Shaft Diameter 1.875 IN
Shaft Extension Location Pulley End
Shaft Ground Indicator No Shaft Grounding
Shaft Rotation Reversible
Shaft Slinger Indicator No Slinger
Speed 1160 rpm
1760 rpm
Speed Code 2S-2W-VT
Motor Standards NEMA
Starting Method Direct on line
Thermal Device - Bearing None
Thermal Device - Winding None
Vibration Sensor Indicator No Vibration Sensor
Winding Thermal 1 None
Winding Thermal 2 None

Drawings

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Nameplate

CAT.NO. M1228T
SPEC. 40D101X174
HP 20/8.9
VOLTS 460
AMP 24/18
RPM 1760/1160
FRAME 286T HZ 60 PH 3
SER.F. 1.15 CODE H DES A CLASS F
NEMA-NOM-EFF PF
RATING 40C AMB-CONT
CC USABLE AT 208V
DE 6311 ODE 6309
ENCL OPSB SN
NP1256L

Performance

Performance at 460 V, 60 Hz, 20 hp

Typical performance; not guaranteed values.

General Characteristics

Full Load Torque 0 LB-FT
No-Load Current 0 A
Line-Line Res. @ 25° C 0.678 Ohms A Ph / 0 Ohms B Ph
Temp. Rise @ Rated Load 39° C
Temp. Rise @ S.F. Load 48° C
Start Configuration DOL
Break-Down Torque 209 LB-FT
Pull-Up Torque 100 LB-FT
Locked-Rotor Torque 141 LB-FT
Starting Current 169 A

Load Characteristics

Rated Load 0% 25% 50% 75% 100% 125% 150% S.F.
Power Factor 13.0 57.0 75.0 83.0 86.0 87.0 88.0 87.0
Efficiency 0.0 80.1 87.9 90.0 90.5 89.8 89.1 90.1
Speed (RPM) 1,799 1,794 1,789 1,784 1,779 1,772 1,765 1,775
Line Amps 8.13 10.50 14.30 19.00 24.10 30.20 35.90 27.80

Performance Curves

Performance at 460 V, 60 Hz, 8.9 hp

Typical performance; not guaranteed values.

General Characteristics

Full Load Torque 0 LB-FT
No-Load Current 0 A
Line-Line Res. @ 25° C 0.959 Ohms A Ph / 0 Ohms B Ph
Temp. Rise @ Rated Load 50° C
Temp. Rise @ S.F. Load 55° C
Start Configuration DOL
Break-Down Torque 172 LB-FT
Pull-Up Torque 54.6 LB-FT
Locked-Rotor Torque 81.1 LB-FT
Starting Current 102 A

Load Characteristics

Rated Load 0% 25% 50% 75% 100% 125% 150% S.F.
Power Factor 9.0 23.0 37.0 47.0 55.0 62.0 66.0 59.0
Efficiency 0.0 66.8 78.8 84.0 85.2 87.0 87.8 86.3
Speed (RPM) 1,199 1,198 1,196 1,194 1,191 1,189 1,187 1,190
Line Amps 13.40 14.00 14.90 16.20 17.90 19.80 21.90 19.00

Performance Curves

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Accessories

Part Number Description List Price
40-1400 C FACE KIT 540.00 USD