SES (mechanical)SIS (inductive)SNS (inductive, NAMUR)Supply voltage 10 … 30 V DC8 V DCSwitching function1 NO + 1 NCPNP, normally open (NO)normally open (NO)Switching capacity1,5A / 240V AC Capacity < 200mA continuous current Protection classIP67IP68IP68Ambient temperature-25 °C … +70 °C-20 °C … +60 °C-25 °C … +60 °CATEX approvalDustExDustExGasEx and DustEx