W22 Ex nA

  • Description

    Electric motors suitable for ATEX environments – Zone 2 and 22 – Non-Sparking + Protection by Enclosure on W22 platform. Available also in IE2 and IE3 performance levels.

    The installation of electric motors where a flammable mixture is not frequently present but may represent risks, must comply with the most demanding safety standards for life protection, machines and environment.

    Following to the highest safety standards WEG Ex nA/Ex tc motors are flexible to adapt to various applications allowing your company agility during installation, easy operation, low maintenance cost and safety.

  • Features

    • Output: 0,12 up to 450kW
    • Three-phase, multivoltage, IP55, TEFC
    • High efficiency – complying with IE2 efficiency levels according to IEC60034-30
    • Number of Poles: 2, 4, 6 and 8
    • Frames: 63 up to 355A/B
    • Mounting: B3T
    • Voltage: 220-240/380-415V / 380-415/660V
    • Class “F” insulation (ΔT=80K)
    • Continuous duty: S1
    • Design N
    • Temperature classification:
      • Zone 2: Temperature Class T3
      • Zone 22: Maximum motor guaranteed external surface temperature T125°C(*)
    • WISE® (WEG Insulation System Evolution) insulation system – Suitable for inverter duty applications*
    • Alarm Thermistors (140°C) 1 per phase and tripping thermistors (155°C) 1 per phase
    • Ambient temperature: 40°C, at 1000 m.a.s.l.
    • Squirrel cage rotor / Aluminium die cast
    • V’Ring seal for frames 63 to 200L and WSeal for frames 225S/M to 355A/B
    • Rubber Drain Plugs
    • Painting Plan: 202P (meets the C4 – high corrositivity category of the ISO 12944:2)
    • Stainless steel nameplate AISI 304
    • Fan Covers: steel made for frames 63 to 132M/L and cast iron made for frames 160M to 355A/B
    • Regreasing nipple for frames 160M to 355A/B
    • 2 x metric thread cable main entries on the terminal box – 1 certified thread brass plug and 1 plastic plug (only for transporting and storage)
    • Color: RAL 5009 – Blue

    (*) Temperature limitation due to the presence of dust clouds (for materials with ignition temperature above 125°C) and presence of dust layers (up to 5mm).
    Note: on VFD application, motor temperature class is ΔT = 160° marking: II 3D T160°C.

  • Available Options

    A wide range of optionals is available:

    • Frequency: 60 Hz
    • Other voltages
    • Design H
    • Class “H” insulation
    • Thermostats or RTD-PT 100 on windings and bearings
    • Degree of Protection: IP56, IP65, IP66, IPW56, IPW65 o IPW66
    • Bearing seals:
      • Lip seal
      • Oil seal
      • Labyrinth taconite seal and W3 seal
    • Additional terminal box
    • Space heaters
    • Fans: Aluminum, Cast Iron and Drip cover for vertical applications
    • Double shaft end
    • Encoder
    • Cable glands in plastic and brass
    • Blower kit (TEBC)
    • Roller bearings

Official Distributor

Stiavelli Irio srl is one of the greatest WEG Distributors for more than 20 years, with competence, experience and professionalism.

Outstanding support

Our WEG awarded expert technicians and sales team are  always available to provide You with right answers as soon as possible.

Official Service

Official awarded WEG Service with expert technicians directly trained at WEG’s. Spare parts warehouse and technical laboratory.