PTC probe relay TeSys - LT3 with automatic reset - 115 V - 1 NO + 1 NC
PTC probe relay TeSys - LT3 with automatic reset - 115 V - 1 NO + 1 NC
PTC probe relay TeSys - LT3 with automatic reset - 115 V - 1 NO + 1 NC
Description
TeSys LT3 thermistor protection unit for use with PTC probes, with automatic reset and fault indicator on front, dual voltage supply 115 or 230V AC 50/60Hz. To be used with a combination of PTC probes impedance lower than 1500 Ohm at 25°C, the trip impedance zone is 2700-3100 Ohm, the automatic reset impedance zone is 1500-1650 Ohm. It provides 2 auxiliary contacts 1NO+1NC for fault signaling. DIN rail mounting, connections by cage terminals. PTC thermistor probes DA1TT, DA1TS available (to be ordered separately). Multi-standards certified (IEC, UL, CSA), Green Premium compliant (RoHs/Reach).
Product details
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[uc] Control Circuit Voltage115...230 V AC 50/60 Hz
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[ue] Rated Operational Voltage250 V AC 50/60 Hz for output control relay
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[ui] Rated Insulation Voltageoutput control relay: 500 V AC
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[uimp] Rated Impulse Withstand Voltage2.5 kV
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Ambient Air Temperature for Operation-25-60 °C
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Ambient Air Temperature for Storage-40-85 °C conforming to IEC 60068-2-1
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Breaking Capacity2 A at 24 V DC DC-13
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Compatibility CodeLT3SA
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Condition of Useconnection of probes 400 m >1 mm²
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Contacts Type and Composition1 NC + 1 NO dual voltage
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Control Typeautomatic reset
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Depth100 mm
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Device Short NameLT3SA
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Electromagnetic Compatibilityresistance to electrostatic discharge level 3 conforming to IEC 61000-4-2
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Height100 mm
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Input Voltage< 2.5 V (1500 Ohm) for probe
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Ip Degree of ProtectionIP20 conforming to IEC 60529
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Net Weight0.22 kg
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Product or Component Typethermistor protection units
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Range of ProductLT3
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StandardsIEC 60947-8
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Tightening Torque0.8 N.m
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Width22.5 mm
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Connections - Terminalspower circuit: cage type connector 1 cable(s) 0.75-2.5 mm²flexible with cable end
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[ith] Conventional Free Air Thermal Current5 A for output control relay
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Control Circuit Voltage Limits0.85...1.1 Uc
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Hold-in Power Consumption in Va2.5-2.5 VA
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Hold-in Power Consumption in w1-1 W
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Maximum Short Circuit Detection Resistance20 Ohm
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Number of Probes0-6
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Operating Altitude<= 1500 m without derating in temperature
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Probe Interchangeabilitylabel mark A conforming to IEC 60034-11
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Rated Power in Va100 VA at 220 V - electrical durability: 500000 cycles
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Resetautomatic reset
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Resistance1500-1650 Ohm reset
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Shock Resistance5 gn 11 ms conforming to IEC 60068-2-27
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Signalling Functionfault indication
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Vibration Resistance1 gn 25...150 Hz conforming to IEC 60068-2-6