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20NFB-3-20-18 - 230/460V 256T 20HP 1775RPM FTD BRAKE

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230/460V 256T 20HP 1775RPM FTD BRAKE
Electric Motors/Brake Motors/Footmounted Brake Motors
230/460V 256T 20HP 1775RPM FTD BRAKE
Item #: 20NFB-3-20-18
Elektrim Premium TEFC IP55 1800RPM cast iron foot mounted electric motor features a high lock rotor and brake torque with a DC HPSY brake with 460V AC rectifier for applications requiring a quick stop.

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Technical Details


Item Number: 20NFB-3-20-18

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Product Group Brake Motors
Series 20N Series
Efficiency Premium
Phase PH 3
Horsepower HP 20
RPM RPM 1800
Nominal RPM 60Hz RPM 1775
Frame 256T
Mount Footed
Removable / Rotatable / Double Drilled Feet No / No / No
Voltage V 208-230/460V 60Hz & 190/380V 50Hz
Hertz Hz 60
Winding Connection Double Delta / Delta
Full Load Torque [FLT] 60Hz lb-ft 59.1
Brake Torque [BT] lb-ft 111
Lock Rotor Torque [LRT] 60Hz % 380
Break Down Torque [BDT] 60Hz % 450
FLA [115V] / [208V] / [230V] / [460V] / [575V] / [796V] 60Hz A -- / 50.6 / 45.8 / 22.9 / 18.3 / --
LRA % % 1004
Lock Rotor Amps [230V] / [460V] / [575V] / [796V] 60Hz A 460 / 230 / 184 / --
Efficiency at Full / 0.75 / 0.50 Load 60Hz % 93 / 92.7 / 91.4
Power Factor Full / 0.75 / 0.50 Load 60Hz % 88 / 84 / 76
RPM 50Hz RPM 1500
Nominal RPM 50Hz RPM 1465
FLA [190V] / [230V] / [380V] / [400V] 50Hz A 55 / -- / 27.5 / --
Efficiency at Full / 0.75 / 0.50 Load 50Hz % 93 / -- / --
FL Power Factor 50Hz % 90
NEMA / IEC Design A
Code Letter L
Service Factor 60Hz / 50Hz 1.2 / 1
Insulation Class F
Rotor WK2 [lb-ft] / [kgm2] 3.57
DE Bearing / ODE Bearing 6309 2Z / 6309 2Z
Impregnation Method Vacuum Pressure Impregnation (VPI)
PTC Thermistors / Space Heater Option / Option
Junction Box / Fan Guard Aluminum (Cast Iron Optional) / Rolled Steel
Mounting Position / Protection Degree F1 / IP55
Enclosure TEFC
Finish RAL5010
Net Weight / Ship Weight lb 390 / 445
Warranty 3-Years
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