Product Specification

BrandMarathon Electric
Part Number284THFNA19048
General Details
CategorySevere Duty
Product LineBlue Chip
HP25
KW18.65
RPM1800
Voltage460
EnclosureTEFC
Frame284T
Motor StandardsNEMA
Technical Details
HP25
Grounding RingAEGIS Shaft Grounding Ring Installed
WireN/A
Number of LeadsN/A
Nema StandardsNEMA MG1 - 1.26.6 Waterproof specification
Nema DesignB
NameplateN/A
MountRigid
Motor TypeAC Motor
Motor StandardsNEMA
KW18.65
Insulation ClassF
Ingress ProtectionIP56
PaintBLUE (EPOXY)
Phase3
Weight478
Voltage460
Thermostats ThermistorsConsult Manufacturer
Temperature RiseN/A
Space HeatersOptional
Shaft Diameter inN/A
Service Factor1.15
RPM1800
RotorN/A
Pole4
Hertz60
EfficiencyPremium Efficiency
DutyS1
Drip CoverN/A
Drains BreathersN/A
Down Thrust lbsN/A
Direction of RotationN/A
C Dimension26.44
Conduit BoxN/A
Bearings NDE6210
Bearings DE6311
Elevation3300
EnclosureTEFC
Grounding TerminalN/A
GreasePOLYREX EM
Full Load Efficiency93.6
Full Load Amps31.0
Frame MaterialCAST IRON
Frame284T
FlangeN/A
FanN/A
EncodersN/A
Ambient Teperature40
Area Classification
Area ClassificationClass I, Division 2, Groups A, B, C & D, Zone 2
Perfomance
Breakdown Torque185 LB-FT 250%
Noise Level dB A65 dBA
No Load Current13
Power Factor 10081
Power Factor 5065.5
Power Factor 7576
Pull Up TorqueN/A
Rotor Inertia lb ft4.2 LB-FT^2
Safe Stall Time Cold50 SEC.
Safe Stall Time hotN/A
Starts Hour2
Nema Load lb ftN/A
MAX RPMN/A
Max Allowable Inertia lb ft175 LB-FT^2
Efficiency 10093.6
Efficiency 5093.6
Efficiency 7594.1
Full Load CurrentN/A
Full Load Speed1772
Full Load Torque74 LB-FT
Guaranteed Eff93
KVA CodeG
Locked Rotor Current182
Locked Rotor Torque138 LB-FT 186%
Start TypeLINE OR INVERTER
Speed Range
CT20:1
VTN/A
Misc
Brake RatingN/A
NoteN/A
OEMN/A