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MR221W Heavy Duty Draw Wire Limit Switch

MR221W Series Draw Wire Limit Switch
Quick Guide for Electromechanical Rotary-Linear Limit Switches


Heavy Duty Draw Wire Linear Limit Switch

MR221 series is a IP-66-rated, closed-frame geared rotary limit switch with spring-loaded draw wire mechanism for linear position and actuation applications.


  • Fully Programmable, Double Cams
  • 2-8 Cam Switch Channels
  • 1.5m to 50m Travel Length
  • IP66 ingress protection


  • Patient cradle in Computer Tomography and MR Imaging
  • Height of lifting platforms
  • Open, closed and intermediate positions of security door, shield or gate
  • Extension of hydraulic cylinder
  • Extension of booms in mobile cranes and utility service trucks
  • Position of dam, overflow or flood control gate
MR221W Data Sheet
MR221W Reference Drawing for 5m Travel
MR221W STP CAD file for 5m Travel (ZIP)
MR22X Series Manual


Cam Switches 2, 4, 6 or 8 cam switch channels, all cams are fully programmable NK style double cams. 
Travel Lengths 1.5m,  3m, 5m, 7.5m, 10m, 15m, 30m, 40m, or 50m
Cam Switch Module Proprietary copper-free corrosion-resistant aluminum alloy die cast housing with powder coat, stainless steel shaft
Draw Wire Module Anodized aluminum housing, polyamid-coated stainless steel wire

Ordering Information

MR221W-w-xxM-y-z Where
w=# of cam switches (2/4/6/8)
xx=length of draw wire in meters (Options=1.5, 3, 5, 7.5, 10, 15, 30, 40, 50)
y=MR265 4-20mA loop-powered position transducer output option, y=0=No, y=1=Yes
z=Draw wire pull direction, z=0=Down, z=1=Up, z=2=Right, Z=3=Left. Directions when facing the Draw Wire Module.
Draw Wire Length=5m, 2x cam switch channels, No MR265 4-20mA option, Pull down direction.


Call +1-805-389-6600 or email

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