Ex control switch, without measuring instrument 16 A for zone 1/21, switch base: 8067, 1 x M25 direct housing bore, screw connection(s): 1, without measuring instrument type: without, measuring range: without, cable entries/thread: cable entries: 1, housing material: glass fiber reinforced polyester, rated voltage: max. 500 V, rated current: 16 A, marking according to 94/9/EC: Ex II 2 G Ex ed ia IIC T5/T6 / Ex II 2 D Ex tD A21 IP66 T80 °C, EC type examination certificate: PTB 99 ATEX 1163, permissible ambient temperature: -20 °C up to +40 °C, dimensions (L x W x H): 170 x 110 x 129 mm, weight: 1.25 kg, protection class: I, Protection class according to EN 60529: IP66