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20JM-3-50-18 - 230/460V 326JM 50HP 1781RPM PREMIUM PUMP

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230/460V 326JM 50HP 1781RPM PREMIUM PUMP
Electric Motors/Close Coupled Pump Motors/JM Close Coupled Pump Motors
230/460V 326JM 50HP 1781RPM PREMIUM PUMP
Item #: 20JM-3-50-18
Elektrim Premium TEFC IP55 1800RPM cast iron foot mounted JM Close Coupled Pump motor features a high 1.3 service factor, oversized bearings and VPI and is ideal for horizontal and vertical fluid transfer applications.

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Technical Details


Item Number: 20JM-3-50-18

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Product Group Close Coupled Pump Motors
Series 20JM Series
Efficiency Premium
Phase PH 3
Horsepower HP 50
RPM RPM 1800
Nominal RPM 60Hz RPM 1781
Frame 326JM
Mount Footed C-Face
Removable / Rotatable / Double Drilled Feet Yes / No / Yes
Voltage V 208-230/460V 60Hz & 190/380V 50Hz
Hertz Hz 60
Winding Connection Double Delta / Delta
Inverter Rated 20:1 VT
Full Load Torque [FLT] 60Hz lb-ft 148
Lock Rotor Torque [LRT] 60Hz % 250
Break Down Torque [BDT] 60Hz % 270
FLA [115V] / [208V] / [230V] / [460V] / [575V] / [796V] 60Hz A -- / 123.8 / 112 / 56 / 45 / --
LRA % % 646
Lock Rotor Amps [230V] / [460V] / [575V] / [796V] 60Hz A 724 / 362 / 290 / --
Efficiency at Full / 0.75 / 0.50 Load 60Hz % 94.5 / 95.1 / 94.9
Power Factor Full / 0.75 / 0.50 Load 60Hz % 88 / 85 / 78
RPM 50Hz RPM 1500
Nominal RPM 50Hz RPM 1476
FLA [190V] / [230V] / [380V] / [400V] 50Hz A 136 / -- / 68 / --
Efficiency at Full / 0.75 / 0.50 Load 50Hz % 93 / -- / --
FL Power Factor 50Hz % 89
NEMA / IEC Design B
Code Letter G
Service Factor 60Hz / 50Hz 1.3 / 1
Insulation Class F
Rotor WK2 [lb-ft] / [kgm2] 11.6
DE Bearing / ODE Bearing 6312 C3 / 6312 C3
Impregnation Method Vacuum Pressure Impregnation (VPI)
PTC Thermistors / Space Heater Standard / Option
Junction Box / Fan Guard Cast Iron / Rolled Steel
Mounting Position / Protection Degree F1 / IP55
Enclosure TEFC
Finish RAL5010
Net Weight / Ship Weight lb 769 / 879
Warranty 3-Years
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