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    Cylindrical cased axial flow fans
    TTT-N Series

    TTT/4-900/H N 7,5KW (400V50HZ) VE

    Range of cylindrical cased axial flow fans with motor located externally to the fan casing and incorporating a belt driven impeller making this range suitable for continuous operation up to 120�C. The casings are manufactured from high grade rolled sheet steel protected against corrosion by cataforesis primer and black polyester paint finish. The drive system consists of an industrial poly V-belt drive pulley system which is enclosed within metal protective guard. All models incorporate diecast aluminium impellers available with 2 or 3 fixed blade angles. The impellers are finished in red colour epoxypolyester paint coating.

    All the motors are IP55 class F, fitted with ball bearings greased for life.
    Electrical supplies:
    Three phase 230/400V-50Hz or 400V-50Hz (See characteristics chart).

    Additional Information
    Standard air direction: form (A) configuration (Motor over Impeller).NI versions incorporate safety switch, stop/start.

    On request
    NI versions: fitted with ON/OFF isolation switch.Single phase 230V-50Hz motors (up to 1.5 kW).
    TTT/4-900/H N 7,5KW (400V50HZ) VE

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    ATEX versionsOn request, explosion proof versions in accordance with ATEX Directive, for 3 phase models.
    For ambient working temperatures from -20�C to +40�C.
    Air direction motor- impeller (A flow)
    - ATEX Flameproof - Gas
    II 2G Ex d IIB T4
    II 2G Ex d IIB+H2 T4 (with Ex d IIC T4 motor)
    - ATEX Increased safety - Gas
    II 2G Ex e II T3
    - ATEX - Dust
    Suspended flammable particles and nonconductive dust:
    II 3D Ex tc IIIB T125�C
    Conductive dust:
    II 3D Ex tc IIIC T125�C (with IP65 motor)
    To select TTT-N ATEX refer to Easyvent.Note electrical data may vary for ATEX motors.Consult availability for other ATEX motor versions."

    Easy to mantain
    Swing-out fan casing assembly provides an easy access for cleaning or maintenance.

    Dynamically balanced impeller
    Impellers are dynamically balanced, according to ISO 1940, providing vibration free operation and coated with a special low friction paint repelling the dirtiness.

    ON/OFF isolation switch
    NI versions incorporate safety switch, stop / start.