Product Specification

BrandMarathon Electric
Part Number445TTFN4575
General Details
CategorySevere Duty
Product LineBlue Chip
HP250
KW186.5
RPM1800
Voltage460
EnclosureTEFC
Frame445T
Motor StandardsNEMA
Technical Details
HP250
Grounding RingN/A
WireN/A
Number of LeadsN/A
Nema StandardsN/A
Nema DesignB
NameplateN/A
MountRigid
Motor TypeAC Motor
Motor StandardsNEMA
KW186.5
Insulation ClassF
Ingress ProtectionIP55
PaintBLUE (EPOXY)
Phase3
Weight2409
Voltage460
Thermostats ThermistorsConsult Manufacturer
Temperature RiseN/A
Space HeatersOptional
Shaft Diameter inN/A
Service Factor1.15
RPM1800
RotorN/A
Pole4
Hertz60
EfficiencyN/A
DutyS1
Drip CoverN/A
Drains BreathersN/A
Down Thrust lbsN/A
Direction of RotationN/A
C Dimension43.26
Conduit BoxN/A
Bearings NDE6316
Bearings DE6318
Elevation3300
EnclosureTEFC
Grounding TerminalN/A
GreasePOLYREX EM
Full Load Efficiency95.0
Full Load Amps285
Frame MaterialCAST IRON
Frame445T
FlangeN/A
FanN/A
EncodersN/A
Ambient Teperature40
Area Classification
Area ClassificationN/A
Perfomance
Breakdown Torque1900 LB-FT 258%
Noise Level dB A85 dBA
No Load Current85
Power Factor 10086&85
Power Factor 5077
Power Factor 7584
Pull Up TorqueN/A
Rotor Inertia lb ft61 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 ft1050 LB-FT^2
Efficiency 10095&95
Efficiency 5094.1
Efficiency 7595
Full Load CurrentN/A
Full Load Speed1785
Full Load Torque736 LB-FT
Guaranteed Eff94.1
KVA CodeG
Locked Rotor Current1825
Locked Rotor Torque1100 LB-FT 149%
Start TypeACROSS THE LINE
Speed Range
CT2:1
VT10:1
Misc
Brake RatingN/A
NoteN/A
OEMN/A