Electric motor WEG

These motors can be designed with configuration to meet cooling method and degree of protection requirements of different kinds of applications.

Standard Features

• Sinusoidal power supply of 220 to 13,800 V.
• Motors manufactured in 2 to 12 poles.
• Cast iron frames 280 to 560 and welded steel plates for frame 630 to 1800.
• Cooling methods used:
  - Open self-ventilated;
  - Self-ventilated by ducts, air inlet and outlet;
  - Forced ventilated, air inlet and outlet by ducts;
  - Forced ventilation, cooling on top of motor;
  - Self-ventilated with air-to-air heat exchanger, heat exchanger on top of motor;
  - Self-ventilated with air-to-air heat exchanger, heat exchanger around the stator;
  - Forced ventilation in the air internal and external circuit, air-to-air heat exchanger;
  - Air-to-water heat exchanger;
  - Air-to-water heat exchanger, forced ventilation in the air internal circuit.
• Mounting: B3.
• Degree of Protection: IP23 to IP55.
• Service duty: (S1).
• Class of insulation: F.
• Service Factor: 1.0.
• Temperature rise: 80 °C.
• Ambient temperature: 40 °C.
• Altitude: 1000 m.
• Temperature detector: Pt100, 1 per bearing with 3 wires.
• Temperature detector: Pt100, 2 per phase with 3 wires.
• Two accessory terminal boxes, one for signal accessories and the other for those accessories requiring power (space heater).
• Single phase space heater.
• Labyrinth tachonite in grease lubricated bearings.
• Grease lubricated bearings:
  - For 2 pole motors in the following frame sizes:
  - Up to frame 400 (inclusive) for 60Hz;
  - Up to frame 450 (inclusive) for 50Hz;
  - For 4 pole motors in the following frames:
  - Up to frame 560 (inclusive) for 60Hz and 50Hz;
  - Grease lubricated bearings for 6 pole motors and above.
• Sleeve bearings:
  - For 2 pole motors in frame 630.
  - Frame 450 and above for 60Hz.
  - Frame 500 and above for 50Hz.
  - For 4 pole motors in frame size 630.
• Electrically insulated non-drive end bearing for frames 450 and above, when connected directly to the power supply.
• Painting: Acrylic polyurethane Polyamide epoxy (Final coat: Blue RAL 5007).
• Stainless steel nameplate.
• Grounding lug on the frame and terminal box.
• Grounding brush on drive end shaft for frame size 450 and above.
• Stainless steel slip rings.
• 03 connection terminals in the power terminal box for high voltage (with terminal block).
• 06 loose power connection leads for low voltage (without terminal block).