Product Specification

BrandMarathon Electric
Part Number284THFNA19048
General Details
CategorySevere Duty
HP25
KW18.65
RPM1800
Voltage460
Frame284T
EnclosureTEFC
Motor StandardsNEMA
List Price3,706
Technical Details
HP25
KW18.65
Phase3
RPM1800
Frame284T
Pole4
Voltage460
EnclosureTEFC
Motor TypeAC Motor
EfficiencyPremium Efficient
Hertz60
Weight478
PaintBLUE (EPOXY)
Ingress Protection56
Frame MaterialCAST IRON
Number of LeadsN/A
Nema StandardsNEMA MG1 - 1.26.6 Waterproof specification
Nema DesignB
NameplateN/A
MountRigid
ResinN/A
RotorN/A
Thermostats ThermistorsN/A
WireN/A
Temperature RiseN/A
Space HeatersOptional
Service Factor1.15
RTDN/A
Insulation ClassF
Elevation3300
DutyS1
Drip CoverFALSE
Shaft Diameter inN/A
Conduit BoxN/A
Bearings NDE6210
Bearings DE6311
EncodersN/A
FanN/A
Grounding TerminalN/A
GreasePOLYREX EM
Full Load Efficiency93.6
Full Load Amps31
FlangeSTANDARD
Ambient Teperature40
Down Thrust lbsN/A
Direction of RotationN/A
Area Classification
ClassI
Division2
Class 2N/A
Zone2
Group 2N/A
Temp CodeT2B
Perfomance
No Load Current13
Starts Hour2
Guaranteed Eff93
Start TypeLINE OR INVERTER
Noise Level dB A65 dBA
Safe Stall Time hotN/A
Safe Stall Time Cold50 SEC.
Nema Load lb ftN/A
Rotor Inertia lb ft4.2 LB-FT^2
KVA CodeG
Locked Rotor Current182
Full Load CurrentN/A
Full Load Speed1772
Breakdown Torque185 LB-FT 250%
Pull Up TorqueN/A
Locked Rotor Torque138 LB-FT 186%
Full Load Torque74 LB-FT
Power Factor 5065.5
Power Factor 7576
Power Factor 10081
Efficiency 5093.6
Efficiency 7594.1
Efficiency 10093.6
Speed Range
CT20:01
VTN/A
Misc
Brake RatingN/A
NoteN/A