Product Specification

BrandMarathon Electric
Part Number254THFNA9026
General Details
CategorySevere Duty
Product LineBlue Chip
HP15
KW11.19
RPM1800
Voltage460
EnclosureTEFC
Frame254T
Motor StandardsNEMA
Technical Details
Phase3
HP15
Ingress ProtectionIP56
Insulation ClassF
KW11.19
Motor StandardsNEMA
Motor TypeAC Motor
MountRigid
NameplateN/A
Nema DesignB
Number of LeadsN/A
PaintBLUE (EPOXY)
Hertz60
Pole4
RotorN/A
RPM1800
Service Factor1.15
Shaft Diameter inN/A
Space HeatersOptional
Temperature RiseN/A
Thermostats ThermistorsConsult Manufacturer
Voltage460
Weight350
WireN/A
EnclosureTEFC
Bearings DE6309
Bearings NDE6210
Conduit BoxN/A
C Dimension23.52
Direction of RotationN/A
Down Thrust lbsN/A
Drains BreathersN/A
Drip CoverN/A
DutyS1
EfficiencyPremium Efficiency
Elevation3300
Ambient Teperature40
EncodersN/A
FanN/A
FlangeN/A
Frame254T
Frame MaterialCAST IRON
Full Load Amps18.8
Full Load Efficiency92.4
GreasePOLYREX EM
Grounding RingN/A
Grounding TerminalN/A
Area Classification
Area ClassificationClass I, Division 2, Groups A, B, C & D, Zone 2
Temp CodeT2B
Perfomance
MAX RPMN/A
Start TypeLINE OR INVERTER
Starts Hour2
Safe Stall Time hotN/A
Safe Stall Time Cold25 SEC.
Rotor Inertia lb ft2.4 LB-FT^2
Pull Up TorqueN/A
Power Factor 7578
Power Factor 5068
Power Factor 10081
No Load Current7.8
Noise Level dB A65 dBA
Nema Load lb ftN/A
Breakdown Torque125 LB-FT 282%
Max Allowable Inertia lb ft110 LB-FT^2
Locked Rotor Torque85 LB-FT 191%
Locked Rotor Current110
KVA CodeG
Guaranteed Eff91.7
Full Load Torque44.4 LB-FT
Full Load Speed1775
Full Load CurrentN/A
Efficiency 7592.4
Efficiency 5091
Efficiency 10092.4
Speed Range
CT20:1
VTN/A
Misc
Brake RatingN/A
NoteN/A
OEMN/A