508.315 - 508 Series

Series: 508 Questions? Contact Littelfuse Support
508 Series 3AB 1000V AC/DC High Voltage Cartridge Fuse

It is a ceramic body 6.3x32mm size 3AB fuse with remarkable interrupting rating designed for high-energy 1000V AC/DC protection in the multimeter market and similar applications.


  • In accordance with Underwriter's Laboratories™ Standard UL248-14
  • Available in cartridge
  • Pluggable into clips or shock safe holders
  • RoHS compliant and Lead-free
  • Superior Interrupting rating of 10,000 Amperes
  • Compact form factor of 6.3 X 32mm


  • Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits.
Property (Mouseover for details) Value
Ampere Rating (A) 0.315
Body Ceramic
Nominal Melting I2T (A2sec) 0.071
Interrupting Rating 10000A@1000VDC
Marking Code MX
Moisture Sensitivity Level Contact Littelfuse
Nominal Cold Resistance (Ohms) 9.2
Opening Fast-Acting (F)
Min Operating Temp °C -55
Max Operating Temp (°C) 125
Package Size 3AB/3AG (6.3x32mm)
VAC (V) 1000
VDC (V) 1000

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    PbFree1/1/2001 RoHS1/1/2001