• Metasol Thermal Overload Relay

LSIS, Metasol

18-25A, Thermal Overload Relay, Tripping Class 20, MT-32/3D-21.5S




Compact size & easy connection. High Performance and long electrical life. Greater environmental immunity. Sealed structure which improves its safety features.


  • Rated current : 6 ~ 800A with 6 Frame sizes
  • Up to 440kW at 440V in category AC-3
  • Uimp = 8kV, Ui = 1,000V (over 40AF)
  • Combination with Manual motor starters
  • Various accessories
  • KEMA, UL/CSA, CE certified



High Performance:

  • Endure reliability in the system: Type ∥ coordination
  • Perfect system with peripheral devices
  • No arc exposure via sealed structure

User convenience:

  • One-touch connection with Din Rail
  • Simple wiring with Adapter, Reversing wire set
  • 4-terminal type: Easy wiring of operation coil
  • Module type of screw terminal
  • Interlock unit with built-auxiliary contacts (2NO built-in)


    IMPORTANT - Compatibility: Only Metasol Thermal Overload Relays are compatible with Metasol Contactors. Neither Metasol Overload Relays nor Metasol Contactors should be used in conjunction with other brands of either device.



      Model # MT-32/3D-21.5S
      Amp Rating 18 - 25A
      Compatible Contactor Frame Size 22AF & 40AF
      Tripping Class 20
      No. of Poles 3
      Weight (lbs.) 2



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