Four-Pole Contactors - AC/DC Operation Four main contacts and screw terminals, safe from touch access to VDE 0106 Part 100 Maximum switching current 20A @ 4kW ac/dc AC1 (20A), AC3 (8.4A) Operating temperature range –25 to +55 °C Hum-free construction Compact design (62 x 36 x 59mm) (H x W x D) for DIN rail or surface mounting Suitable for use in domestic appliances and for distribution in offices and residential buildings, can also be used in areas where space is restricted Integrated surge protection device Complete with coils rated at 230V 4W dc and 230V 4.4VA ac (hum free) Standards IEC947-4-1, DIN VDE 0660