Inclination sensors

Technical informationand customer serviceTechnical glossaryControl systemsOperating voltageThe voltage range for which the device is rated. The stated nominal voltageand the tolerance result in the operating voltage range in which the devicefunctions safely. Exceeding or falling below the maximum or minimumvalues is only allowed within the limits specified in the data sheets.Overload protectedThe response threshold for the short-circuit protection is above the specifiedvalue for the continuous current rating. In this range devices protectedagainst overload are also protected against destruction.PELVPELV (Protective Extra Low Voltage) describes an electrical system in whichthe voltage cannot exceed the value of 60 V DC. It also includes a protectivemeasure against direct and indirect contact with dangerous voltage, the socalled“safe isolation” from the supply system. Circuits and/or bodies in aPELV system can be connected to ground - in contrast to the SELV system.Protection classesProtection class 1 (I): units with protective wire connectionProtection class 2 (II): units with protective insulation (double insulation)Protection class 3 (III): units for connection to protective extra-low voltage,voltage supply to EN 50178, PELV, SELVAll units marked protection class III or all units without protective wire connectionor protective insulation mark must be connected to protective extralowvoltage (max. 60 V DC) with safe isolation. For inductive proximitysensors this can be SELV or PELV.Visit our website: www.ifm.com198