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20NCB-3-25-18 - 230/460V 284TC 25HP 1780RPM CFACE BRAKE

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230/460V 284TC 25HP 1780RPM CFACE BRAKE
Electric Motors/Brake Motors/C-Face Brake Motors
230/460V 284TC 25HP 1780RPM CFACE BRAKE
Item #: 20NCB-3-25-18
Elektrim Premium TEFC IP55 1800RPM cast iron C-Face 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: 20NCB-3-25-18

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Product Group Brake Motors
Series 20N Series
Efficiency Premium
Phase PH 3
Horsepower HP 25
RPM RPM 1800
Nominal RPM 60Hz RPM 1780
Frame 284TC
Mount Footed C-Face
Removable / Rotatable / Double Drilled Feet No / No / Yes
Voltage V 208-230/460V 60Hz & 190/380V 50Hz
Hertz Hz 60
Winding Connection Double Delta / Delta
Full Load Torque [FLT] 60Hz lb-ft 73.7
Brake Torque [BT] lb-ft 177
Lock Rotor Torque [LRT] 60Hz % 380
Break Down Torque [BDT] 60Hz % 420
FLA [115V] / [208V] / [230V] / [460V] / [575V] / [796V] 60Hz A -- / 67.5 / 61 / 30.5 / 24.4 / --
LRA % % 984
Lock Rotor Amps [230V] / [460V] / [575V] / [796V] 60Hz A 600 / 300 / 240 / --
Efficiency at Full / 0.75 / 0.50 Load 60Hz % 93.6 / 93.1 / 91.6
Power Factor Full / 0.75 / 0.50 Load 60Hz % 82 / 76 / 66
RPM 50Hz RPM 1500
Nominal RPM 50Hz RPM 1475
FLA [190V] / [230V] / [380V] / [400V] 50Hz A 72.6 / -- / 36.3 / --
Efficiency at Full / 0.75 / 0.50 Load 50Hz % 92.7 / -- / --
FL Power Factor 50Hz % 84
NEMA / IEC Design A
Code Letter L
Service Factor 60Hz / 50Hz 1.2 / 1
Insulation Class F
Rotor WK2 [lb-ft] / [kgm2] 3.59
DE Bearing / ODE Bearing 6311 2Z / 6311 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 397 / 452
Warranty 3-Years
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