Product Specification

BrandMarathon Electric
Part Number284THFNA19033
General Details
CategorySevere Duty
Product LineBlue Chip
HP25
KW18.65
RPM1800
Voltage575
EnclosureTEFC
Frame284T
Motor StandardsNEMA
Technical Details
HP25
Grounding RingN/A
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
Voltage575
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 Dimension26.34
Conduit BoxN/A
Bearings NDE6210
Bearings DE6311
Elevation3300
EnclosureTEFC
Grounding TerminalN/A
GreasePOLYREX EM
Full Load Efficiency93.6
Full Load Amps24.8
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 Torque215 LB-FT 291%
Noise Level dB A65 dBA
No Load Current10.8
Power Factor 10081
Power Factor 5065
Power Factor 7575
Pull Up TorqueN/A
Rotor Inertia lb ft4.2 LB-FT^2
Safe Stall Time Cold25 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
Efficiency 7593.6
Full Load CurrentN/A
Full Load Speed1774
Full Load Torque74 LB-FT
Guaranteed Eff92.4
KVA CodeG
Locked Rotor Current144.8
Locked Rotor Torque140 LB-FT 189%
Start TypeLINE OR INVERTER
Speed Range
CT20:1
VTN/A
Misc
Brake RatingN/A
NoteN/A
OEMN/A