Fuses Reducers for Class H, J, K, and R Fuses
Fuses Reducers
Class H, J, K, and R
• Fuse reducers install on fuses and permit smaller size
fuses to be used in larger amp size switches and blocks.
• Reducers will fit into any panel or switch including the
dead-front type.
• Strong contact is maintained both mechanically and
electrically.
• UL Listed.
• There are no reducers to go from 250V to 600V.
• There are no reducers for switching from one fuse class to
another.
• There are no reducers for Class T or Class L fuses.
Fuses Reducers for Class H, J, K, & R Fuses
Agency Approvals: UL Listed,
Guide #IZZR, File #E12853
CSA Certified,
Class 6225-01, File 47235
Fuse Reducers for Class J Dimension Fuses- JDL, JFL, & CJ
Catalog No. (Pairs)
Fuse Size | Desired Size | Catalog No. (Pairs) |
| Reducer No. | ||
| 30A | 60A | No. 263 |
| 30A | 100A | No. 213 |
| 60A | 100A | No. 216 |
| 60A | 200A | No. 226 |
| 100A | 200A | No. 2621 |
| 100A | 400A | *No. 2641 |
| 200A | 400A | No. 2642 |
| 200A | 600A | *No. 2661 |
| 400A | 600A | *No. 2662 |
| 600A | *No. 2664 |
† Not for Bolt-on Applications.
** Product does not have UL or CSA certification.
Fuse Reducers for Class H & K Dimension Fuses
KON, ERN, PONC, CDNC; KOS, ERS, CDSC
Fuse Size | Desired Size | 250V Reducer No. | Catalog No. (Pairs) |
600V Reducer No. | |||
| 30A | 60A | No. 263 | No. 663 |
| 30A | 100A | No. 213 | No. 216 |
| 60A | 100A | No. 216 | No. 616 |
| 60A | 200A | No. 226 | No. 626 |
| 100A | 200A | No. 2621 | No. 2621 |
| 100A | 400A | *No. 2641 | *No. 2641 |
| 200A | 400A | No. 2642 | No. 2642 |
| 100A | 600A | *No. 2661 | *No. 2661 |
| 200A | 600A | *No. 2662 | *No. 2662 |
| 400A | 600A | *No. 2664 | *No. 2664 |
Fuse Reducers for Class R Dimension Fuses
ECNR, LENRK, NCLR; ECSR, LESRK, & SCLR
Fuse Size | Desired Size | 250V Reducer No. | Catalog No. (Pairs) |
600V Reducer No. | |||
| 30A | 60A | No. 263-R | No. 663-R |
| 30A | 100A | No. 213-R | No. 216-R |
| 60A | 100A | No. 216-R | No. 616-R |
| 60A | 200A | No. 226-R | No. 626-R |
| 100A | 200A | *No. 2621-R | |
| 100A | 400A | *No. 2641-R | |
| 200A | 400A | *No. 242-R | *No. 642-R |
| 100A | 600A | *No. 2661-R | |
| 200A | 600A | *No. 2662-R | |
| 400A | 600A | **No. 2664-R | |
* Product does not have CSA certification.
**Single reducer only (pair not required)
Note: Carton quantity – 10 pair.
Fuse Reducers
Class H, J, K, and R
• Fuse reducers install on fuses and permit smaller size
fuses to be used in larger amp size switches and blocks.
• Reducers will fit into any panel or switch including the
dead-front type.
• Strong contact is maintained both mechanically and
electrically.
• UL Listed.
• There are no reducers to go from 250V to 600V.
• There are no reducers for switching from one fuse class to
another.
• There are no reducers for Class T or Class L fuses.
Fuses Reducers for Class H, J, K, & R Fuses
Agency Approvals: UL Listed,
Guide #IZZR, File #E12853
CSA Certified,
Class 6225-01, File 47235
Fuse Reducers for Class J Dimension Fuses- JDL, JFL, & CJ
Fuse Size | Desired Size | Catalog No. (Pairs) |
| Reducer No. | ||
| 30A | 60A | **J-63 |
| 30A | 100A | **J-13 |
| 60A | 100A | **J-16 |
| 60A | 200A | **J-26 |
| 100A | 200A | **J-21 |
| 100A | 400A | **J-41 |
| 200A | 400A | **J-42 |
| 200A | 600A | **J-62 |
| 400A | 600A | **J-64 |
† Not for Bolt-on Applications.
** Product does not have UL or CSA certification.
Fuse Reducers for Class H & K Dimension Fuses
KON, ERN, PONC, CDNC; KOS, ERS, CDSC
Fuse Size | Desired Size | 250V Reducer No. | Catalog No. (Pairs) |
600V Reducer No. | |||
| 30A | 60A | No. 263 | No. 663 |
| 30A | 100A | No. 213 | No. 216 |
| 60A | 100A | No. 216 | No. 616 |
| 60A | 200A | No. 226 | No. 626 |
| 100A | 200A | No. 2621 | No. 2621 |
| 100A | 400A | *No. 2641 | *No. 2641 |
| 200A | 400A | No. 2642 | No. 2642 |
| 100A | 600A | *No. 2661 | *No. 2661 |
| 200A | 600A | *No. 2662 | *No. 2662 |
| 400A | 600A | *No. 2664 | *No. 2664 |
* Product does not have CSA certification.
Fuse Reducers for Class R Dimension Fuses
ECNR, LENRK, NCLR; ECSR, LESRK, & SCLR
Fuse Size | Desired Size | 250V Reducer No. | Catalog No. (Pairs) |
600V Reducer No. | |||
| 30A | 60A | No. 263-R | No. 663-R |
| 30A | 100A | No. 213-R | No. 216-R |
| 60A | 100A | No. 216-R | No. 616-R |
| 60A | 200A | No. 226-R | No. 626-R |
| 100A | 200A | *No. 2621-R | |
| 100A | 400A | *No. 2641-R | |
| 200A | 400A | *No. 242-R | *No. 642-R |
| 100A | 600A | *No. 2661-R | |
| 200A | 600A | *No. 2662-R | |
| 400A | 600A | **No. 2664-R | |
* Product does not have CSA certification.
**Single reducer only (pair not required)
Note: Carton quantity – 10 pair.
Documents / Resources
 | COOPER Fuses Reducers for Class H, J, K, and R Fuses [pdf] User Guide 263-R, 663-R, 13-R, 216-R, 626-R, 2621-R, 2641-R, 242-R, 642-R, 2661-R, 2662-R, 2664-R, Fuses Reducers for Class H J K and R Fuses, Reducers for Class H J K and R Fuses, Class H J K and R Fuses, Fuses Reducers, Reducers |