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20NFB-3-20-36 - 230/460V 256T 20HP 3540RPM FTD BRAKE

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230/460V 256T 20HP 3540RPM FTD BRAKE
Electric Motors/Brake Motors/Footmounted Brake Motors
230/460V 256T 20HP 3540RPM FTD BRAKE
Item #: 20NFB-3-20-36
Elektrim Premium TEFC IP55 3600RPM 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-3-20-36

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Product Group Brake Motors
Series 20N Series
Efficiency Premium
Phase PH 3
Horsepower HP 20
RPM RPM 3600
Nominal RPM 60Hz RPM 3540
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 29.7
Brake Torque [BT] lb-ft 111
Lock Rotor Torque [LRT] 60Hz % 230
Break Down Torque [BDT] 60Hz % 260
FLA [115V] / [208V] / [230V] / [460V] / [575V] / [796V] 60Hz A -- / 50.6 / 45.8 / 22.9 / 18.3 / --
LRA % % 603
Lock Rotor Amps [230V] / [460V] / [575V] / [796V] 60Hz A 276 / 138 / 110 / --
Efficiency at Full / 0.75 / 0.50 Load 60Hz % 92 / 92.4 / 91.7
Power Factor Full / 0.75 / 0.50 Load 60Hz % 89 / 88 / 82
RPM 50Hz RPM 3000
Nominal RPM 50Hz RPM 2905
FLA [190V] / [230V] / [380V] / [400V] 50Hz A 58.2 / -- / 29.1 / --
Efficiency at Full / 0.75 / 0.50 Load 50Hz % 88.4 / -- / --
FL Power Factor 50Hz % 88
NEMA / IEC Design B
Code Letter F
Service Factor 60Hz / 50Hz 1.3 / 1
Insulation Class F
Rotor WK2 [lb-ft] / [kgm2] 1.47
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 306 / 361
Warranty 3-Years
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