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LFR Series - Class R Indicating Fuse Blocks

The new Littelfuse Class H and R blocks offer many advantages over previous generations that are noted in the features and benefits section.

Class H and Class R fuse blocks are dimensionally the same, but Class R blocks incorporate a rejection feature, which only allows Class R fuses to be inserted.

Features & Benefits
  • Indication offered on most 250V and 600V versions
  • DIN Rail releasable for all non-knife blade style fuses
  • Only one hand is required to release from DIN Rail (lock open lock closed)
  • Universal mounting holes make for easy replacement
  • Clip designs maximize electrical contact and minimize heat rise
  • Reinforcing clips are standard on all Class R fuse blocks
  • Available in 1, 2 and 3 Pole versions
Catalog # Certificates Fuse Type Indicating
LFR250301C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250301P CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250301S CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250302C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250302P CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250302S CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250303C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250303P CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250303S CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR250601CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR250602CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR250603CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR251001CID UL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR251003CID UL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR252001C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR252003C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR254001C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR254003C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR256001C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR256003C UL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR600301CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600301PID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600301SID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600302CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600302PID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600302SID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600303CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600303PID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600303SID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600601CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600602CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR600603CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR601001CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR601003CID CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R Yes
LFR602001C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR602003C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR604001C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR604003C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR606001C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
LFR606003C CSA_6225_01_2_10192004iconUL_IZLT E14721iconUL_IZLT E14721icon Class R No
 

Knowledge

Our staff possesses decades of in-depth application knowledge and we are eager to share it with you. All of our field engineers have control gear and fuse backgrounds, making us uniquely qualified to provide solutions to your protection problems. We offer selection software to accurately apply our products, fuse audits to help you streamline your operations, or in-house seminars to educate your personnel. Ask us! 

Service

From the friendly voice that answers the phone, to the delivery that arrives before you expect it, we pride ourselves on delivering the absolute highest level of customer service. At Fusetek, customer service is not an empty promise but the way we do business, each and every day. Use us! 

Solutions

Can’t find that unusual fuse? Not sure about a particular application? We can help. 

Our quick, knowledgeable replies get you the answers you need, when you need them.   Whether it’s technical assistance, help in finding that special fuse, or quick turnaround to get you out of a jam, we’re here for you. Call us!

Contact Us

Toll free for North America
Tel: 1-800-479-3875
Fax: 1-800-866-7690
International Tel: 1-613-384-4144 International Fax: 1-613-384-0167

Email: info@fusetek.comMailing Address: 599 Norris Crt.
Kingston, Ontario
Canada K7P 2R9