Marathon Electric Fire Pump Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256T Frame, TEFC

SKU: 256TTFNA14071 Barcode: 722856132567
Regular price $2,889.00 USD
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Fire Pump Motor, 20 & 15 HP, 3 Ph, 60 & 50 Hz, 230/460 & 190/380 V, 1800 & 1500 RPM, 256T Frame, TEFC

Features

  • Designed for use on pumps for fire pump duty
  • UL file EX5190, CSA file LR2025 and CE mark
  • Red paint exterior
  • NEMA Design B, Code G or less
  • Motor will accept a C-face kit
  • Single voltage motors have 12 leads and are suitable for wye-delta, across the line, or part winding start
  • Dual voltage motors have 12 leads, suitable for wye-delta or across the line start on either voltage, or part winding start on low voltage
  • Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower

Specifications

Performance & Electrical
Power 20 HP
Power (dual rating) 20 & 15 HP
Power 14.9 kW
Voltage 230/460 V
Phase 3
Frequency 60 Hz
Speed (max) 1765 RPM
Speed (dual) 1765 & 1470 RPM
Full-load current 50.0/25.0 A
Current (dual) 50/25 & 45/22.5 A
Nominal efficiency 91%
Power factor 82%
Service factor 1.15
Number of poles 4
Number of speeds 1
NEMA design B
KVA code F
Duty Continuous
Electrical type Squirrel Cage Induction Run
Starting method Part Wdg Start Low Volt Only & Wye Start Delta Run
Main winding resistance .468 Ω
Frame & Mechanical
Frame 256T
Frame size 256
Frame suffix T
Frame material Cast Iron
Frame length 12.25 in
Enclosure Totally Enclosed Fan Cooled
IP rating IP43
Insulation class F
Mounting Rigid Base
Assembly / conduit box F1/F2 CAPABLE
Orientation Horizontal
Rotation Reversible
Max ambient 40°C
Shaft & Bearings
Shaft diameter 1.625 in
Shaft extension 4.20 in
Shaft type T
C dimension 25.27 in
Drive-end bearing 6309
Drive-end bearing type Ball
Opp. drive-end bearing 6210
Opp. drive-end bearing type Ball
Overload protection No Protection
Compliance & Certifications
CE Y
CSA Y
UL Listed
Connection drawing EE7358
Outline drawing B-SS203015-1225
Dimensions & Weight
Overall dimensions (L × W × H) 30.75 × 21.75 × 18.00 in
Weight 331.00 lb
Identification
Manufacturer part / model 256TTFNA14071
Catalog number Y1611
UPC 722856132567
Country of origin United States of America
Minimum order qty 1
Order multiple 1
Units per package 1
Catalog status Active

Documentation