Ex wall socket for zone 1, max. 16 A (T6) / 20 A (T5), 7-pin, 6 h, cable entries: 1 x M40, polyamide, cable entries/housing holes: 1 x plastic cable entries M40 for Ø 17 - 28 mm, 1 x M40 Ex screw cap plastic, housing material: glass fiber reinforced polyester, rated voltage: up to 500 V AC, frequency: up to 400 Hz, rated current: max. 16 A (T6) / 20 A (T5), marking according to 94/9/EC: Ex II 2 G Ex e II T6/T5 / Ex II 2 G Ex de [ia] IIC T6/T5, EC type examination certificate: PTB 00 ATEX 1109, permissible ambient temperature: -20 °C to 40 °C, dimensions (L x W x H): 265 x 120 x 172 mm, weight: 2.2 kg, protection class: I, protection type according to EN 60529: IP66,