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  • Product Type: MS41
  • Place of origin: USA
  • Model No: MS41
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  • Minimum Order: 1
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  • Brand Name: ABB
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Products Information

The K-TEK MS41 electric switch is a magnetically actuated double pole double throw switch. When the MS41 is mounted on a KM26, LS Series, or an External Chamber that contains a K-TEK magnetic float, it can sense a high or low level within a vessel. The unique magnetic coupling action eliminates the need for seals, diaphragm springs, or torque tubes because there is no physical contact with the process. The switch configuration also has no process connections which insures complete isolation from the process. The maintenance free design requires no periodic cleaning or operational checks and contains hermetically sealed contacts that insure high reliability and extended product life.


  • Hermetically Sealed DPDT Switch
  • NEMA 4X Sealed 316L Stainless Steel Enclosure
  • Separate Terminal Compartment Eliminates Corrosion Potential
  • Easy Mounting and Adjustment - Only Screwdriver Required
  • Trip Point Infinitely Adjustable Without Changing Process Piping
  • Vibration Resistant
  • Compact Design
  • Process Temperatures from –320 to 850°F / -195 to 454°C
  • Switch Type Magnetically actuated, cam driven snap action bistable switch; DPDT
  • Switch Action Break before make
    Max Deadband Approximately ±0.75” of float travel
    Contact Rating
    Material Silver-Cadmium Alloy
    AC Rating Max - 10 amp resistive, 1/4 HP @ 125 AC or 250 VAC and less than 187 Watts
    DC Rating 2.6 amp @ 24 VDC, 1/2 amp @ 125 VDC, 1/4 amp @ 250 VDC
    Lamp Load Rating 1.5A @ 125 VAC
    Process Temperature
    Switch Ambient Temperature
    -60 to 300°F / -51 to 149°C Standard;
    -320 to 850°F / -195 to 454°C with options
    -58 to 176°F / -50 to 100°C (max. ambient temp. de-rated depending on approval rating,
    see below)
    Material 316L Stainless Steel, Dual Compartment Housing, NEMA 4X
    Electrical Connections 3/4” FNPT conduit and terminal block with #6 screws
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