Systemair AW 420 D4-2-EX Axial fan ATEX - Axial wall fan, explosion proof, II 2G c Ex e IIB T4

Certified according to ATEX Speed-controllable Integral thermal contact Explosion proof The AW - EX fans have speed controllable external rotor motors. The fans have a square plate for wall mounting and are painted in standard black. The casing and impeller is manufactured from sheet steel. To protect the motor from overheating, integral thermistors are fitted with external leads which must be connected to the U-EK230E motor protection relay. The AW-Ex fan motor is approved according to ATEX. Useful for Zone 1 and 2, groups IIA, IIB and temperature class T1, T2, or T3 (AW 355 and AW 420 also T4). Ignition protection "e". Accessories for Ex-fans only on request.