Siemens SITRANS WM100 Zero Speed Switch

The Siemens SITRANS WM100 is a heavy duty non-contacting zero speed alarm switch that provides cost-effective equipment protection even in the harshest conditions. The SITRANS WM100 has built-in selectable start delays and one Form C relay contact. It is resistant to dust, dirt, build-up and moisture.

The WM100 monitors the absence of motion on moving or rotating equipment. The device alarms to minimize spillage, prevent extensive damage or fire caused by belt slippage at the head pulley, and warn against conveyor malfunction.

Typical applications include: tail pulleys, driven pulleys, motor shaft sensing, screw conveyor flights, and bucket elevators.

Key Specifications

  • Replaces the retired Milltronics ZSS zero speed switch
  • Up to 4" gap between SITRANS WM100 and targets
  • Non-contacting design eliminates need for lubricating, cleaning, and part replacement
  • Visual indication of target triggered pulse
  • Rugged, low maintenance, suitable for tough environments
  • One SPDT Form C relay contact

Supporting Documentation
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    • Type
    • Size
    • Document Name
    • Siemens SITRANS WM100 Zero Speed Switch Brochure
    • 86.9 KB
    • Siemens SITRANS WM100 Zero Speed Switch Brochure
    • Siemens SITRANS WM100 Zero Speed Switch Specification Datasheet
    • 268 KB
    • Siemens SITRANS WM100 Zero Speed Switch Specification Datasheet
    • Siemens SITRANS WM100 Zero Speed Switch User Manual
    • 285 KB
    • Siemens SITRANS WM100 Zero Speed Switch User Manual

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Last Ed. Date: 02/08/2017 09:36 AM