Main range of productLT3 device short nameLT3SM product or component typeThermistor protection units [Uc] control circuit voltage115...230 V AC 50/60 Hz resetManual Complementary control circuit voltage limits0.85...1.1 Uc contacts type and composition1 NC + 1 NO dual voltage [Ith] conventional free air thermal current5 A for output control relay [Ui] rated insulation voltageOutput control relay: 500 V AC [Ue] rated operational voltage250 V AC 50/60 Hz for output control relay signalling functionFault indicationVoltage indication control typeManual testManual reset probe interchangeabilityLabel mark A conforming to IEC 60034-11 hold-in power consumption in W1 W hold-in power consumption in VA2.5 VA resistance1500…1650 Ohm reset2700…3100 Ohm tripping number of probes0…6 input voltage< 2.5 V (1500 Ohm) for probe< 7.5 V (4000 Ohm) for probe conforming to IEC 60034-11 maximum short circuit detection resistance20 Ohm condition of useConnection of probes 1000 m >2.5 mm²Connection of probes 500 m >1.5 mm² [Uimp] rated impulse withstand voltage2.5 kV rated power in VA100 VA at 220 V - electrical durability: 500000 cycles breaking capacity2 A at 24 V DC DC-133 A at 250 V AC AC-166 A at 120 V AC AC-16 connections - terminalsPower circuit: cage type connector 1 cable(s) 0.75…2.5 mm²flexible with cable endPower circuit: cage type connector 1 cable(s) 0.75…2.5 mm²solid with cable endPower circuit: cage type connector 1 cable(s) 1…2.5 mm²flexible without cable endPower circuit: cage type connector 1 cable(s) 1…2.5 mm²solid without cable endPower circuit: cage type connector 2 cable(s) 0.75…2.5 mm²flexible with cable endPower circuit: cage type connector 2 cable(s) 0.75…2.5 mm²solid with cable endPower circuit: cage type connector 2 cable(s) 1…2.5 mm²flexible without cable endPower circuit: cage type connector 2 cable(s) 1…2.5 mm²solid without cable end tightening torque0.8 N.m height100 mm width22.5 mm depth100 mm net weight0.22 kg Environment standardsIEC 60034-11VDE 0660 product certificationsLROS (Lloyds register of shipping) IP degree of protectionIP20 conforming to IEC 60529IP20 conforming to VDE 0106 ambient air temperature for operation-25…60 °C ambient air temperature for storage-40…85 °C conforming to IEC 60068-2-2-40…85 °C conforming to IEC 60068-2-2 operating altitude<= 1500 m without derating in temperature> 1500...3000 m with derating in temperature vibration resistance1 gn 25...150 Hz conforming to IEC 60068-2-62.5 gn 2...25 Hz conforming to IEC 60068-2-6 shock resistance5 gn 11 ms conforming to IEC 60068-2-27 electromagnetic compatibilityResistance to electrostatic discharge level 3 conforming to IEC 61000-4-2Resistance to fast transient level 3 conforming to IEC 61000-4-4Surge resistance 1.2/50-8/20 level 4 conforming to IEC 61000-4-5Susceptibility to electromagnetic fields level 3 conforming to IEC 61000-4-3Immunity to microbreaks and voltage drops conforming to IEC 61000-4-11 Offer Sustainability Sustainable offer statusGreen Premium product REACh Regulation EU RoHS DirectiveCompliant
EU RoHS Declaration
Mercury freeYes RoHS exemption information China RoHS RegulationChina RoHS declaration
Product out of China RoHS scope. Substance declaration for your information
Environmental Disclosure Circularity Profile WEEEThe product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins Contractual warranty Warranty18 months
CADSizeAdd to My DocumentsThermistor protection units for use with PTC thermistor probes,Units with reset with thermistor short-circuit detection, from 24 at 400V (Version 1.0)Instruction sheetSizeAdd to My DocumentsEnd of Life InformationSizeAdd to My Documents
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