The explosion proof motors were designed in order to avoid its explosion in hazardous areas where are installed, it can be happen due the flame propagation or overheating.

WEG Extra Long Life line was designed with focus on the main customers requirements: higher lifespan, higher interval between maintenance, resistance to harsh environments, mechanical stiffness and lower operational cost.

Joining the new concept of the W22Xdb Explosion Proof motors with the reliability on WELL motors operation, WEG give for the market W22Xdb WELL line, the most reliable for the petrochemical segment, offering the maximum performance and availability for plant.

Certification

Global certification ATEX / IECEx issued by INERIS for following features:

Standard features

  • Output: 0.16 up to 600 cv
  • Frames: 71 up to 355M/L
  • Number of poles: 2, 4, 6 and 8
  • Service factor: 1.00
  • Voltage: 440 V
  • Winding thermal protection (trip 150 °C)
  • Degree of protection: IPW66
  • Mounting: B3T (for frames 71 up to 80) and B3D (for frames 90S/L up to 355M/L)
  • Bearing sealing: Oil seal (for frames 71 and 80) and W3 Seal® (for frames 90S/L up to 355M/L)
  • Grease fitting (for frames 90S/L and above)
  • Terminal block (for frames 71 up to 250S/M) and Ex db bushing isolator (for frames from 280S/M up to 355M/L)
  • Vibration level B according to NBR IEC 60034-14 standard
  • Maximum ambient temperature: 40°C or 50°C
  • Stainless steel nameplate
  • Adittional rotation and customer TAG nameplates
  • Special painting plan for harsh environments
  • Color: Munsell 10 YR 8/14 (yellow)
  • Internal anticorrosive epoxy painting
  • Terminal box internal painting Munsell 2.5 YR 6/14
  • Rotine and dimensional tests
  • Special foot flatness

Optional

  • Group IIC
  • Other voltages
  • Other mountings (vertical or flanged)
  • Drip cover
  • Slinger
  • Drain
  • Certified cable glands (brass or stainless steel)
  • Windings and bearing thermal protection
  • Fan material: cast iron or bronze
  • Roller bearings (from frame size 132)
  • Stainless steel shaft
  • Double shaft end
  • SPM provision

 

W22Xdb WELL N-2919 Line

 

 

The W22Xdb WELL motors are available in conformity with N-2919 Standard having some differentials from standard line:

  • IP/IN ratios according to N-2919 Standard
  • Maximum global noise level 85 dBA
  • Pt-100 (from frame size 90S/L)
  • Color: Munsell N6.5 (gray)
  • Increased safety terminal box (Ex db eb)(from frame size 90S/L)
  • Efficiency level IE3 according to IEC 60034-30-1 Standard and IR3 according to NBR 17094-1 Standard