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Century® Multi-Speed • Three Phase Motors
Dripproof - Rigid Base - Two Speed
Variable Torque - 1/.44 thru 30/13.3 HP

• Ball Bearings • Service Factor 1.15 • 60 Hz
• Open Dripproof • Rigid Base • 40˚C Ambient

For two-speed, one and two winding, variable torque applications for speed control from one speed to another while under load.
Blowers, fans, conveyors, mixing machines, centrifugal pumps.
Oper. HP Oper. HP Full Load Stock Insul. “C” High Spd. Low Spd.
HP RPM High Spd.* Low Spd.* Volts Amps Frame Number Class Dim. Efficiency Efficiency Notes
2-1-VT ·Two Speed · Two Winding · Variable Torque
 1~.44 1745/1140 1 .30 460 1.7/1.1 145T M109V1 B 12.6   New!
 1.5~.68 1745/1140 1-1.2 .44 200-230 4.8-4.6/2.8-2.7 145T M125V1 B 13.1   New!
 1.5~.68
1745/1140 1-1/2 .44 460 2.4/1.4 145T M104 B 13.1 75.0 71.0 21
 1.5~.68 1725/1140 1-1/2 .44 460 2.1/1.3 145T M104V1 B 13.1   New!
 2~.88 1750/1170 2 .59 200-230 6.4-6.1/3.8-4.1 182T M220 B 12.6 81.0 72.0
 2~.88 1760/1175 2 .59 460 3.0/2.0 182T M207 B 12.6 80.0 70.0
 3~1.3 1740/1160 3 .89 200-230 9.0-8.4/4.8-4.8 184T M221 F 12.6 81.0 75.0
 3~1.3 1760/1170 3 .89 460 4.6/2.6 184T M208 B 12.6 82.5 74.0
 5~2.2 1750/1160 5 1.48 200-230 16.0-15.5/9.7-10.2 215T M320 B 15.6 86.0 78.0
 5~2.2 1750/1160 5 1.48 460 7.1/4.8 215T M305 B 15.6 78.0 71.0
 7.5~3.3 1760/1170 7.5 2.22 200-230 22.0-19.5/12.3-12.3 215T M317 F 18.3 89.0 85.0
 7.5~3.3 1770/1175 7.5 2.22 460 10.0/6.0 215T M315 F 16.6 87.0 80.0
 10~4.4 1775/1175 10 2.96 200-230 27.0-24.0/14.5-13.0 256T M421 F 22.1 88.0 80.0
 10~4.4 1775/1175 10 2.96 460 12.0/6.3 256T M413 F 22.1 87.0 82.0
 15~6.7 1775/1175 15 4.40 200-230 40.0-36.0/20.0-19.0 284T M521 F 24.3 86.0 85.0
 15~6.7 1775/1175 15 4.40 460 18.0/9.5 256T M423 F 22.1 86.0 81.0
 20~8.9 1770/1175 20 5.93 200-230 54.0-48.0/28.0-26.0 286T M522 F 24.3 89.0 86.0
 20~8.9 1770/1175 20 5.93 460 24.0/13.0 286T M504 F 24.2 90.0 84.0
 25~11.0 1770/1180 25 7.40 460 29.0/17.5 286T M515 F 24.3 91.0 86.0
 30~13.3 1770/1170 30 8.90 460 36.0/18.5 286T M514 F 24.3 91.0 88.0
        
 21.Terminalinbracketconstruction
* Theoperatinghorsepowerisbasedonthetypeloadwherethehorsepowerrequired
variesasthecubeofthespeed.Examplesofsuchloadsarefanorblowersystems
andcentrifugalpumps.Two-speedmotorperformancedatasheetsareavailablefrom
yourCenturyCustomerServiceCenter.

M207