LFJ Series - Class J Indicating Fuse Blocks

Series: LFJ
Questions? Contact Littelfuse Support
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Features and Benefits
  • Indication offered on all versions except 200A-600A
  • DIN Rail releasable for all non-knife blade style fuses
  • Only one hand is required to release from DIN Rail (lock open lock closed)
  • Phenolic blocks have side barriers for isolation
  • Spring reinforced fuse clips are standard on 100A and larger blocks. Reinforcing springs are optional on 30A and 60A blocks.
  • Universal mounting holes make for easy replacement
  • Space-saving design — up to 45% smaller than existing blocks

Application Spotlight

Littelfuse POWR-Gard Catalog

Access specifications, certifications, check availability and order parts below

Catalog #Fuse TypeIndicatingStockSamplesCompare
LFJ600301CIDClass JYesCheckOrder
LFJ600301PIDClass JYesCheckOrder
LFJ600301SIDClass JYesCheckOrder
LFJ600302CIDClass JYesCheckOrder
LFJ600302PIDClass JYesCheckOrder
LFJ600302SIDClass JYesCheckOrder
LFJ600303CIDClass JYesCheckOrder
LFJ600303PIDClass JYesCheckOrder
LFJ600303SIDClass JYesCheckOrder
LFJ600601CIDClass JYesCheckOrder
LFJ600602CIDClass JYesCheckOrder
LFJ600603CIDClass JYesCheckOrder
LFJ601001CIDClass JYesCheckOrder
LFJ601003CIDClass JYesCheckOrder
LFJ602001CClass JYesCheckOrder
LFJ602003CClass JNoCheckOrder
LFJ604001CClass JNoCheckOrder
LFJ604003CClass JNoCheckOrder
LFJ606001CClass JNoCheckOrder
LFJ606003CClass JNoCheckOrder
Catalog # Certificates
Sorting icon
LFJ600301CID culusulcsa
LFJ600301PID culusulcsa
LFJ600301SID culusulcsa
LFJ600302CID culusulcsa
LFJ600302PID culusulcsa
LFJ600302SID culusulcsa
LFJ600303CID culusulcsa
LFJ600303PID culusulcsa
LFJ600303SID culusulcsa
LFJ600601CID culusulcsa
LFJ600602CID culusulcsa
LFJ600603CID culusulcsa
LFJ601001CID culusulcsa
LFJ601003CID culusulcsa
LFJ602001C culusulcsa
LFJ602003C culusulcsa
LFJ604001C culusulcsa
LFJ604003C culusulcsa
LFJ606001C culusulcsa
LFJ606003C culusulcsa


  • Showing 3 items
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
LFJ600301CID 600V CLASS J BLOCK 30A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600301PID 600V CLASS J BLOCK 30A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600301SID 600V CLASS J BLOCK 30A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600302CID 600V CLASS J BLOCK 30A 2 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600302PID 600V CLASS J BLOCK 30A 2 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600302SID 600V CLASS J BLOCK 30A 2 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600303CID 600V CLASS J BLOCK 30A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ600303CID_07-11-2018 No
01/03/2012
LFJ600303PID 600V CLASS J BLOCK 30A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600303SID 600V CLASS J BLOCK 30A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_REACh181_LFJ600303SID_04-23-2018 No
01/03/2012
LFJ600601CID 600V CLASS J BLOCK 60A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600602CID 600V CLASS J BLOCK 60A 2 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ600603CID 600V CLASS J BLOCK 60A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ600603CID_10-10-2019 REACH201_Declaration_LFJ600603CID_10-10-2019 No
01/03/2012		 Does not Contain
LFJ601001CID 600V CLASS J BLOCK 100A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ601001CID_08-23-2018 REACH191_Declaration_LFJ601001CID_10-17-2018 No
01/03/2012		 Does not Contain
LFJ601003CID 600V CLASS J BLOCK 100A 3 POLE RoHS No 09/20/2011 PbFree No 09/20/2011 CoC_RoHS10_LFJ601003CID_10-10-2019 REACH201_Declaration_LFJ601003CID_10-10-2019 No
Does not Contain
LFJ602001C 600V CLASS J BLOCK 200A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ602001C_10-10-2019 REACH201_Declaration_LFJ602001C_10-10-2019 No
01/03/2012		 Does not Contain
LFJ602003C 600V CLASS J BLOCK 200A 3 POLE RoHS No 09/20/2011 PbFree No 09/20/2011 CoC_RoHS10_LFJ602003C_06-01-2020 REACH205_Declaration_LFJ602003C_06-01-2020 No
Does not Contain
LFJ604001C 600V CLASS J BLOCK 400A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ604001C_03-20-2018 No
01/03/2012
LFJ604003C 600V CLASS J BLOCK 400A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 CoC_RoHS10_LFJ604003C_06-01-2020 REACH205_Declaration_LFJ604003C_06-01-2020 No
01/03/2012		 Does not Contain
LFJ606001C 600V CLASS J BLOCK 600A 1 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
LFJ606003C 600V CLASS J BLOCK 600A 3 POLE RoHS No 01/03/2012 PbFree No 01/03/2012 No
01/03/2012
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