... (Dry contact, Lightning protection, Electrostatic protection, Over current protection), 3-Phase AC Power Opto isolated inputs to ... is very suitable for outdoor security protection and Transformer anti theft requirements, Power Transmission Equipments Burglarproof applications ... Alarm S250:Rated Voltage: 110 to 220VAC,2AStandby current: 5mAWorking temperature: Negative 35 to Positive 80 degreeStorage ...