Brochure


www.centuryelectricmotor.com
Century® Multi-Speed Three Phase Motors
Dripproof - Rigid Base - Two Speed
Variable Torque - 2
~
.5 thru 25
~
6.5 HP


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
Rotation
Dim.
Efficiency
Efficiency
2-2-VT ·Two Speed · Two Winding · Variable Torque
 
1750/875 2 .25 460 3.0/1.2 182T  B REV 12.6 78.5 62.0
 
1750/860 3 .37 460 4.3/2.0 184T  B REV 12.6 75.0 61.0
 
1760/880 5 .63 460 7.1/3.3 215T  B REV 15.6 83.0 55.0
 
1760/880 7
1/2
.94 460 9.6/4.6 215T  F REV 16.6 86.0 70.0
  1770/880 10 1.25 460 12.5/5.5 256T  F RCC 22.1 87.0 74.0
 
1760/875 15 1.87 460 18.0/7.5 256T  F RCC 22.1 88.0 75.0
 
1755/875 20 2.5 460 24.5/10.0 286T  F RCC 24.3 87.0 77.0
 
1755/875 25 3.12 460 30.0/12.0 286T  F RCC 24.3 89.0 84.0
*
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.
M314
Ball Bearings 60 Hz
Open Dripproof 40˚C Ambient
Rigid Base Service Factor 1.15