Resettable PTCs from Littelfuse, Inc.

Line Voltage Rated Devices Resettable PTCs -- LVB125

Line Voltage Rated Devices Resettable PTCs -- LVB125 -- View Larger Image
Line Voltage Rated Devices Resettable PTCs -- LVB125-Image

PolySwitch line-voltage rated (LVR and LVB) devices help protect electric motors and transformers used in commercial home appliances from damage caused by mechanical overloads, overheating, stall, lost neutral, and other potentially harmful conditions. The LVB device is enclosed in a plastic box instead of an epoxy coating, which makes it suitable for harsh chemical environments, or applications requiring potting.


  • ROHS Compliant
  • Line voltage rating of 240 VAC
  • Low Resistance
  • Plastic housing allows use in harsh chemical environments or applications requiring potting


  • Industrial controls
  • Transformers
  • Motors
  • Fans
  • Lighting Ballast
  • Security and Fire Alarm Systems


Product Category
Resettable PTCs
Supply Voltage (VS)
240 volts
Trigger Current
Response Time
Standards and Certifications