Article number: 0087.0796
Application examples: Environment with explosion hazard (zone 1 and 2), Dye shop, Battery room, Workplace, Storage facility
DZD 25/4 B Ex e - short description
Axial roof fan, horizontal air outlet, DN 250, three-phase AC, explosion proof
DZD 25/4 B Ex e - Product description
Explosion protection in accordance with ATEX.
Ex II 2G Ex e IIB+H2 T3/T4 Gb.
For usage temperatures of -20°C ≤ Ta ≤ +40°C.
MAICO Ex fans fulfil the safety requirements of European Directive 2014/34/EU for units and protective systems in explosion-endangered areas.
For zone 1 and 2.
Base plate, intake nozzle and rain protection cover made of galvanised sheet steel.
Horizontal air outlet direction.
Sturdy eyebolts enable transport by crane.
Can be switched to ventilation or air extraction.
Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.
Robust motor with ball bearings, maintenance-free.
Motor protection class IP 54.
Connecting cable, approx. 1.7 m long.
Separate terminal box, explosion proof, with cable screw-connections.
Speed control permitted with transformer TR.... Exception: DZ.. 35/2 B Ex e.
The temperature in the fan unit is monitored by PTC thermistors. The PTC thermistors must be connected to a triggering system (safety device according to Directive 2014/34/EU), that separates the fan permanently from the power if the temperature gets too hot.
The MAICO PTC thermistor triggering device MVS 6 or TMS is recommended as the triggering system.