LT3SM00ED

PTC probe relay TeSys - LT3 with manual reset - 24 V - 1 NO + 1 NC

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LT3SM00ED

PTC probe relay TeSys - LT3 with manual reset - 24 V - 1 NO + 1 NC

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LT3SM00ED
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PTC probe relay TeSys - LT3 with manual reset - 24 V - 1 NO + 1 NC

Description

TeSys LT3 thermistor protection unit for use with PTC probes, with manual reset and fault indicator on front, dual voltage supply 24 or 48V DC. 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 manual reset is possible only if impedance has decreased enough to be below 1500-1650 Ohm. It provides 2 auxiliary contacts 1NO+1NC for fault signaling, 1 pushbutton on front face for a local manual reset, and 1 logic input for connection of a remote reset button. 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

  • [uc] Control Circuit Voltage
    24...48 V DC
  • [ue] Rated Operational Voltage
    250 V AC 50/60 Hz for output control relay
  • [ui] Rated Insulation Voltage
    output control relay: 500 V AC
  • [uimp] Rated Impulse Withstand Voltage
    2.5 kV
  • Ambient Air Temperature for Operation
    -25-60 °C
  • Ambient Air Temperature for Storage
    -40-85 °C conforming to IEC 60068-2-1
  • Breaking Capacity
    2 A at 24 V DC DC-13
  • Compatibility Code
    LT3SE
  • Condition of Use
    connection of probes 1000 m >2.5 mm²
  • Contacts Type and Composition
    1 NC + 1 NO dual voltage
  • Control Type
    manual test
  • Depth
    100 mm
  • Device Short Name
    LT3SE
  • Electromagnetic Compatibility
    resistance to electrostatic discharge level 3 conforming to IEC 61000-4-2
  • Height
    100 mm
  • Input Voltage
    < 2.5 V (1500 Ohm) for probe
  • Ip Degree of Protection
    IP20 conforming to IEC 60529
  • Net Weight
    0.22 kg
  • Product or Component Type
    thermistor protection units
  • Range of Product
    LT3
  • Standards
    IEC 60947-8
  • Tightening Torque
    0.8 N.m
  • Width
    22.5 mm
  • Connections - Terminals
    power circuit: cage type connector 1 cable(s) 0.75-2.5 mm²flexible with cable end
  • [ith] Conventional Free Air Thermal Current
    5 A for output control relay
  • Control Circuit Voltage Limits
    0.8...1.25 Uc
  • Hold-in Power Consumption in Va
    2.5-2.5 VA
  • Hold-in Power Consumption in w
    1-1 W
  • Maximum Short Circuit Detection Resistance
    20 Ohm
  • Number of Probes
    0-6
  • Operating Altitude
    <= 1500 m without derating in temperature
  • Probe Interchangeability
    label mark A conforming to IEC 60034-11
  • Rated Power in Va
    100 VA at 220 V - electrical durability: 500000 cycles
  • Reset
    manual
  • Resistance
    1500-1650 Ohm reset
  • Shock Resistance
    5 gn 11 ms conforming to IEC 60068-2-27
  • Signalling Function
    fault indication
  • Vibration Resistance
    1 gn 25...150 Hz conforming to IEC 60068-2-6
more specification
less specification

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