Rated operating voltage Volt/Hz 230/ 50/60 Dimensions mm (W x H x D), W1/H1: 255x255mm, W2/H2: 224x224mm, T1: 25mm, max. installation depth T2: 107mm, air flow free blowing / m3/h 50 Hz 230, air flow free blowing / m3/h 60 Hz 250, air flow with filter /