Marking of the unit: ExII 1G Ex ia IIC T6 Ga ExII 1D Ex ia IIIC T 90°C Da Switching frequency: 700 Hz Connection: M12 connector Mounting: flush mountable SKU DKIBUL5ZA9BE7R Nominal voltage: 8.2 DC, (1kΩ) V Output status indication: LED yellow (4 x 90°) Length: 45 mm Protection: IP 67 Sensing range: 4 mm Shortcode: IFB2004BN/US/1G/1D Housing materials: Brass special coating, active face: PBT, connector: PA Output function: Normally closed Current rating: < 30, when used outside the hazardous area mA Product Name: NF501A Ambient temperature: -20...70 °C Electrical design: Connection to certified intrinsically safe circuits with the max. values U = 15 V / I = 50 mA / P = 120 mW