Ex plug for zone 1, 10 A, 21-pin, 250 V, 5 h, cable entries: 1, polyamide, cable entries/housing holes: Ø 19 - 28 mm, housing material: polyamide, rated voltage: 250 V AC, frequency: up to 400 Hz, rated current: 10 A, marking according to 94/9/EC: Ex II 2 G Ex e II T6/T5 or 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): 225 x Ø 87 mm, weight: 0.7 kg, protection class: I, protection type according to EN 60529: IP65,