TEFC – W21 High Efficiency

Applications

Specially developed line for industrial and commercial pumping applications

• Water pumping
• Process
• Transfer and circulating pumps

Standard Features

High Efficiency

• Three-phase
• Number of poles: 2 to 8
• Voltage: 208-230/460V, 200V, 460V or 575 V
• 50/60Hz rated up to 30 HP
• Totally Enclosed Fan Cooled – TEFC (IP55)
• Squirrel cage rotor / Aluminum die cast
• V’Ring seal on both endshields (586/7 frame equipped with labyrinth tachonite seal as standard)
• Ball bearings
• 1045 carbon steel shaft (4140 for 404/5T and up)
• Class “F” insulation for all frames
• Temperature rise: Class “B” (80ºC)
• NEMA design “B”
• Service Factor:
  – 1.25 up to 100 HP
  – 1.15 from 125 HP and up
• Continuous duty (S1)
• 104ºF (40ºC) ambient temperature
• Altitude: 3300 ft (1000 m)
• NPT threaded terminal box
• Mounting: F-1 (B3L)
• Stainless steel nameplate AISI 316 with laser etching
• Paint: Synthetic enamel alkyd resin base (exceeds ASTM B117 salt spray test)
• Color: RAL 5009
• Automatic drain plugs – pressure compensated
• Regreasable bearings, positive pressure lubrication system (frames 254T and up)
• Gasketed conduit box
• Dip and baked impregnation (frames 143T up to 326T and 586/7T)
• Resin continuous flow impregnation (frames 364/5T up to 504/5T)

Optional Features

• Special voltages
• Space heaters (standard on 586/7 frames)
• Labyrinth tachonite seal
• Thermostats, Thermistors or RTD’s (P-T100)
• Additional terminal box
• Drip cover (canopy) for shaft down applications
• Cable glands
• “C” and “D” flanges for all ratings
• Roller bearings on drive end
• Special epoxy painting
• F-2 and F-3 (B3R and B3T) Mounting

Nameplate Marking

• Motor certified for Fire Pump Application
• Listed 68YN FIRE PUMP MOTOR
• EX 5990