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Manufacturer Part #


LVR Series 240 V 0.55 A 4.1 x 22.4 x 14 mm Radial PolySwitch Resettable Fuse

Mfr. Name: Littelfuse
Standard Pkg:
Product Variant Information section
Date Code: 2051
Product Specification Section
Technical Attributes
Attributes Table
Voltage Rating: 240V
Hold Current [Ih]: 0.55A
Trip Current: 1.25A
Operating Temp Range: -40°C to +85°C
Dimension: T  4.1mm x L  22.4mm x W  14mm
Package Style:  RADIAL
Mounting Method: Through Hole
Features & Applications

LVR055K line-voltage product line of polymeric positive temperature coefficient (PPTC) devices includes components that are rated for line voltages of 135 VAC and 265 VAC, for up to 2 A of operating current at 20°C.

They help protect against damage caused by both overcurrent surges and over temperature faults, offer low resistance, and are compatibly sized with fuse solutions. Unlike traditional fuses, PolySwitch devices do not require replacement after a fault event. Compared to bimetal breakers, they offer greater flexibility, longer lifespan, and lower electromagnetic interference (EMI).The PolySwitch LVR devices’ resettable functionality and latching attributes make them a reliable, cost-effective circuit protection solution for both intermittent- and continuous-operation motor applications.

Features :

  • Broadest range of radial-leaded resettable devices available in the industry
  • Current ratings from 50 mA to 2 A
  • Hold current at 20° C is 0.55 A
  • Line voltage rating of 120 VAC and 240 VAC
  • Agency recognition : UL, CSA, TÜV
  • Fast time-to-trip
  • Low resistance

Applications :

  • Electromagnetic loads
  • Game machines
  • Industrial controls
  • Lighting ballast
  • Loudspeakers
  • Medical equipment
  • Motors, fans and blowers
  • POS equipment
  • Satellite video receivers
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Product Variant Information section