Marking of the unit: ExII 1G Ga Ex ia IIC T4 ExII 1D Ex iaD 20 T 125°C Electrical design: Connection to certified intrinsically safe circuits with the max. values U = 15 V / I = 50 mA / P = 120 mW Protection: IP 67 Housing materials: PBT Product Name: N7S20A Connection: PTFE cable / 0.5 m, 2 x 0.06 mm² Shortcode: I7S2002-N /1G/1D Output function: Normally closed SKU S4ZA7L8N9846S7 Ambient temperature: -40...100 °C Nominal voltage: 8.2 DC, (1kΩ) V Switching frequency: 5000 Hz