Cut Sheet

ManualsBrandsEaton/Bussmann Series ManualsClass HBUSS Fuse Block, Class

Technical Data 10289

Effective March 2017

Supersedes December 2015

Product description:

HM Class H(K), JM Class J and RM Class R

modular ferrule fuse blocks for fuses up to 60

amps.

The new Bussmann™ series fuse blocks

contain multiple features that increase

versatility, reduce labor and enhance safety for

any panel or electrical system design.

Features and benefits:

•

Available in 1-, 2-, and 3-pole configurations

to meet stocking requirements.

•

To reduce inventory, assembly time and

labor, modular single-pole blocks snap-

together for tool-less assembly of multiple

poles at point of use.

•

DIN-Rail and panel mount versatility

allows one product to be used for multiple

applications with lower inventory cost.

•

Save panel space with the smallest width

dimension on the market.

•

Standard clip reinforcing springs improve

temperature rise performance while

maintaining reliable surface contact between

the fuse ferrule and clip over the block’s

service life.

•

Optional see-through, IP20 finger-safe

covers enhance safety with lock-out/tag-out

capability.

•

Optional open fuse indication on covers

speeds troubleshooting.

•

Easy circuit identification with available

universal marker labels for blocks and

covers.

Class H(K), J and R modular ferrule fuse blocks

BUSSMANN

SERIES

Summary of content (8 pages)

PAGE 1
Technical Data 10289 Effective March 2017 Supersedes December 2015 BUSSMANN SERIES Class H(K), J and R modular ferrule fuse blocks Features and benefits: Product description: HM Class H(K), JM Class J and RM Class R modular ferrule fuse blocks for fuses up to 60 amps. The new Bussmann™ series fuse blocks contain multiple features that increase versatility, reduce labor and enhance safety for any panel or electrical system design.
PAGE 2
Technical Data 10289 Class H(K), J and R modular ferrule fuse blocks Effective March 2017 Specifications Ratings: Volts • Recommended Bussmann series fuses: Class H 250V, 600V Class J 600V Class R 250V, 600V • Amps up to 60A • Withstand Class J and R 200kA RMS Sym Class H(K) 10kA RMS Sym Agency information: Blocks: Class H(K) • Basic protection general purpose 250V NON, data sheet No. 1030 • Basic protection general purpose 600V NOS, data sheet No.
PAGE 3
Class H(K), J and R modular ferrule fuse blocks Technical Data 10289 Effective March 2017 Table 2.
PAGE 4
Technical Data 10289 Class H(K), J and R modular ferrule fuse blocks Effective March 2017 Dimensions - mm (in): Class H(K) and R 250V - 30A block 36 1.4 50 2.0 26 1.0 75 2.9 R3 .1 99 3.9 5 .2 80 3.2 50 2.0 51 2.0 45 1.8 25 1.0 13 .5 49 1.9 74 2.9 15 .6 25 1.0 With cover. See tables 3 and 5 for available covers. Class H(K) and R 250V - 60A block 108 4.2 7 .3 4 .2 3 .1 35 1.4 32 1.2 Ø6 .2 69 2.7 34 1.3 68 2.7 103 4.1 135 5.3 102 4.0 47 1.8 With cover.
PAGE 5
Class H(K), J and R modular ferrule fuse blocks Technical Data 10289 Effective March 2017 Dimensions - mm (in): Class H(K) and R 600V - 30A block 30 1.2 88 3.5 59 2.3 Ø7 .28 Ø7 .28 4 .16 183 7.2 80 3.13 159 6.25 2 .08 2 .08 31 1.2 90 3.5 60 2.4 29 1.2 16 .61 58 2.3 With cover. See tables 3 and 5 for available covers. Class H(K) and R 600V - 60A block Ø7 .3 8 .3 3 .1 5 .2 39 1.6 77 3.0 38 1.5 54 2.1 82 3.2 172 [6.8] 66 2.6 116 4.6 17 .7 202 [8.0] 115 4.5 With cover.
PAGE 6
Technical Data 10289 Class H(K), J and R modular ferrule fuse blocks Effective March 2017 Table 6. Class J fuse block catalog numbers Terminal type #10-32 Phil-slot screw JM60030-1SR JM60030-2SR JM60030-3SR — — — Box lug JM60030-1CR JM60030-2CR JM60030-3CR JM60060-1CR JM60060-2CR JM60060-3CR Pressure plate JM60030-1PR JM60030-2PR JM60030-3PR — — — Volts Fuse amp range 1/2 to 30 600 31 to 60 Table 7.
PAGE 7
Class H(K), J and R modular ferrule fuse blocks Technical Data 10289 Effective March 2017 Dimensions - mm (in): Class J - 30A block 28 1.1 110 4.3 28 1.1 29 1.1 17 .7 46 1.8 83 3.3 56 2.2 84 3.3 R3 .1 12 .5 87 3.4 55 2.2 58 2.3 With cover. See table 7 for available covers. Class J - 60A block 77 3.0 39 1.5 R3 .1 7 .3 119 4.7 94 3.7 5 .2 18 .7 38 1.5 38 1.5 53 2.1 18 .7 114 4.5 75 3.0 113 4.5 65 2.6 With cover. See table 7 for available covers. Eaton.
PAGE 8
Class H(K), J and R modular ferrule fuse blocks Technical Data 10289 Effective March 2017 Installing/removing covers Closing cover: Position cover over block and push straight down until it snaps/clicks into place. Opening cover: Using both outside handles, pull straight up. Installing blocks on DIN-Rail Place one edge of DIN-Rail in fuse block base, then rotate block down until it clicks into place.