Model VS Series

Metric Dimensions are shown in mm (Shown in green)
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The Model VS Series snap action thermal protectors feature a shunted design so the bimetallic element does not carry the circuit current, enabling them to carry larger currents than the conductive Model V protectors. The ultra-small, low-profile cases meet tighter space requirements of smaller battery packs and small DC motors. Three different models feature different lead configurations to meet the needs of many applications.


  • Snap-action design, quick break/quick make switching action.
  • Ultra compact design with a high switching contact rating.
  • Shunted design: Bimetallic element does not carry current. Device makes or breaks circuit primarily based on temperature. This results in reducing the internal heating effect of the device when used in applications with higher current loads.
  • Automatically resets as ambient temperature falls below the calibration set point.
  • Plastic case is electrically isolated from the circuit.
  • Preset calibration temperature; not adjustable in the field.

Contact Ratings

  • 8 AMPS/18 VDC
  • 3 AMPS/24 VDC
  • Maximum Breaking Current: 100 AMPS/12 VDC

These ratings are applicable for 6,000 and 10,000 cycles

  • UL File No. 873 E37151
  • TUV R50042966
  • EN 60730-2-9: 2002
  • EN 60730-1

Calibration Range

  • Available from 40°C to 100°C in 5°C increments with a standard Tolerance of ± 5°C to ± 10°C
  • Reset temperature approximately 30 to 35% lower than the opening temperature

Standard Configuration

  • Model VS-N is available with customer specified length of Nickel strips leads and heat shrink insulation over welded lead connections
  • Model VS-W is available with UL 3265 XLPE insulated lead wire
  • Model VS-T is available with without lead wires

Other configurations available, please contact us for further information


Battery Packs, Small DC Motors, Electronic Circuit Protection

Standard Marking System

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