Ex safety switch standard 10 A for zone 1/21, 3-pole, auxiliary contact: 1S, cable entries: 2 x M25 + 1 x M20, polyamide, cable entries/housing holes: 2 x cable entry M25 for Ø 8 mm - 17 mm, 1 x cable entry M20 for Ø 5.5 mm - 13 mm, housing material: impact-resistant polyamide, rated voltage: up to max. 500 V, frequency: 50 - 60 Hz, rated current: max. 10 A, marking according to 94/9/EC: Ex II 2 G Ex ed IIC T6 / Ex II D Ex tD A21 IP66 T80 °C, EC type examination certificate: PTB 00 ATEX 1074, permissible ambient temperature: -20 °C to 40 °C, dimensions (L x W x H): 102 x 84 x 112 mm, Weight: 0.7 kg, Protection class: I, Protection type according to EN 60529: IP66, Connection terminals main contact: 2 x 1.5 - 2.5 qmm,