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Eaton's Bussmann Division fuses and surge circuit protection ...

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Simplify design and installation while reducing footprint


New snap-together, Bussmann series modular Class H(K), J and R ferrule fuse blocks speed up installation, increase flexibility and require minimal panel space

Eaton’s BussmannTM series HM, JM and RM ferrule fuse blocks feature a modular design that allows assembly of the required poles at point of use.

 

Available for Class H(K), J and R ferrule fuses, these blocks have features and accessories that add versatility, reduce labor and help enhance safety of any panel design.

 

Fuse blocks can be ordered as 1-pole versions or factory configured 2- and 3-pole versions, and feature the smallest width in the market, consuming minimal panel space.

 

Features

• Modular, snap-together design provides tool-less assembly of multiple poles to save inventory and reduce assembly time.

• DIN-Rail and panel mount versatility allows one product to be used for multiple applications and lowers inventory cost. 

• Optional see-through covers enhance safety with IP20 finger-safe protection, lockout/ tagout capability and optional open circuit indication.

New snap-together, Bussmann series modular Class H(K), J and R ferrule fuse blocks speed up installation, increase flexibility and require minimal panel space. 

• Easy circuit identification with available universal marker labels for fuse blocks and covers.

 

Specifications

Ratings:

• Volts

• Class H(K) - 250 V, 600 V        

• Class J - 600 V 

• Class R - 250 V, 600 V

• Amps

• Up to 60A

• Withstand

• Class J and R - 200 kA

• Class H(K) - 10 kA

 

Agency information:

• Blocks

• UL® Listed E14853 - IZLT and IXLT2

• CSA® Certified 47235-622501

• RoHS compliant

• Covers

• UL Listed E58836 - JDVS

• CSA Certified 47235-622501

• RoHS compliant

 

Flammability ratings:

• Blocks

• UL 94V0, self-extinguishing

• Covers

• UL 94HB, selfextinguishing

 

Operating and storage temperature range:

• Blocks

• -40°C to +120°C

• Non indicating covers

• -40°C to +120°C

• Indicating covers

• -20°C to +90°C

 

Materials:

• Base

• Thermoplastic

• Terminals

• Tin-plated copper brass

• Covers

• Thermoplastic


Terminal type*

Fuse class 

Box lug

Box lug/slot screw

#10-32    Phil-slot screw

Screw with  quick-connect*

Pressure plate  

Volts

 Fuse Amp range

Class H

HM25030-_CR

HM25030-_SR

HM25030-_QR

HM25030-_PR

250

up to 30

HM25060-_CR

HM60030-_CR

HM60030-_SR

HM60030-_PR

600

HM60060-_CR

Class R

RM25030-_CR

RM25030-_SR 

RM25030-_QR

HM25030-_PR

250

RM25060-_CR

RM60030-_CR

RM60030-_SR 

RM60030-_PR

600

RM60060-_CR

Class J

JM60030-_CR

JM60030-_CHR

JM60030-_SR

JM60030-_PR

600

JM60060-_CR

JM60060-_CHR

 *All versions available in 1-, 2-, or 3-pole factory assembled configurations (ex., JM60060-1CR, JM60060-2CR, JM60060-3CR).

**3/16” Quick ‐connect terminal maximum ampacity rating dependant on female spade connector and wire ratings.



Class J modular ferrule and knifeblade  fuse blocks

Catalog symbol: • JM60_

 

Description:

Bussmann® series Class J modular fuse blocks increase versatility, reduce labor and enhance safety for any panel or electrical system design. Available for the full Class J fuse amp range.

These fuse blocks feature a standard fuse clip reinforcing spring for enhanced electrical contact between the blcok and fuse. All blocks are available as single-pole versions that snap together for the required number of poles, or as factory configured 2-, and 3-pole versions to meet stocking requirements.

The modular design permits reducing inventory, assembly time and labor with tool-less assembly of multiple poles at point of use.

Ferrule fuse blocks up to 60 amps save panel space with the smallest width dimension on the market and feature DIN-Rail and panel mount versatility so that one product can be used for multiple applications with lower inventory cost..

Knifeblade fuse blocks from 100 to 600 amps feature phase barriers between poles for additional safety with up to four mounting holes per pole increase installation flexibility. All knifeblade blocks meet UL creep and clearance requirements for Industrial Power Circuits (UL 508 and UL 845).

Additionally, the 200 to 600 amp blocks meet the higher UL creep and clearance requirements for Power Distribution Standards (UL 98, UL 67, UL 489, UL 891 and UL 869A)

All blocks have optional IP20 finger-safe high clarity, see-through covers for inspecting wire terminations or thermography measurements without removal. All covers enhance safety by featuring probe holes for easier, safer testing and a lockout/tagout capability. These covers also have optional open fuse indication to speed troubleshooting.

Easy circuit identification is available for 30 and 60 amp blocks and covers with universal marker labels.

 

Specifications:

Ratings

• Volts 600 V

• Amps up to 600 A

• Withstand 200 kA RMS Sym

 

Agency information

• Blocks:

• UL® Listed E14853 — IZLT and IZLT7

• CSA® Certified 47235-6225-01

• CE

• RoHS Compliant

• REACH declaration available upon request

• Covers:

• UL Listed E58836 - JDVS

• CSA Certified 47235-6225-01 (30 and 60A)

• RoHS Compliant

• REACH declaration available upon request

 

Poles

• 1-, 2-, 3-pole units factory assembled

• Single-pole units snap together to create desired number of poles

 

Flammability ratings

• Blocks: UL 94V0, self-extinguishing

• Covers: UL 94HB, self-extinguishing

 

Operating and storage temperature range

• Blocks -40°C to +120°C

• Covers;

• Non-Indicating -40°C to +120°C

• Indicating -20°C to +90°C*

* Indication requires minimum 90V and closed circuit to illuminate.

 

Materials

• Base: Thermoplastic

• Terminals:

• Tin-plated copper brass (30 and 60A)

• Tin-plated aluminum (box lug)

• Covers: Thermoplastic

 

Conductors

• See catalog numbers for details and torque specifications.

 

Modular Class J ferrule and knifeblade fuse blocks


Terminal Type

Optional covers*

Fuse  amp range

 Poles

Box lug/slot screw 

Box lug/hex screw

#10-32 Phil-slot screw

 Pressure plate

 Indicating**

 Non-indicating

up to 30

1

JM60030-1CR

JM60030-1CHR

JM60030-1SR

JM60030-1PR

CVRI-J-60030

CVR-J-600302

2

JM60030-2CR

JM60030-2CHR

JM60030-2SR

JM60030-2PR

3

JM60030-3CR

JM60030-3CHR

JM60030-3SR

JM60030-3PR

35 to 60

1

JM60060-1CR

JM60060-1CHR

CVRI-J-60060  

CVR-J-600602

2

JM60060-2CR

JM60060-2CHR

3

JM60060-3CR

JM60060-3CHR

* Covers sold separately, one cover per pole. 

** Open fuse indication requires 90 volts minimum and closed circuit to operate.



Fuse    amp range 

Poles

covers*

Conductors***

Catalog nos.

 Non-indicating

 Indicating**

Solid and stranded

Fine stranded

Torque N•m (lb-in)

70-100

1

 JM60100-1CR

CVR-J-60100

CVRI-J-60100

Cu 1-3 AWG 

6.2 (55)


1/0-3 AWG; (2) Cu 4-6 AWG

Cu 4-6 AWG

5.6 (50)

2

 JM60100-2CR

2 4-6 AWG; (2) Cu 8 AWG

Cu 8 AWG

 5.1 (45)


8 AWG; (2) Cu 10-14 AWG

4.5 (40)

3

JM60100-3CR

Cu 10-14 AWG; Al 10-12 AWG

4.0 (35)

110-200

1

JM60200-1CR

CVR-J-60200

CVRI-J-60200

250kcmil-1 AWG

Cu 3/0-1 AWG

42 (375)

2

JM60200-2CR

2-6 AWG; (2) Cu 2-6 AWG 

Cu 2-6 AWG

31 (275)

3

JM60200-3CR

225-400

1

JM60400-1CR

CVR-J-60400

CVRI-J-60400

600kcmil

N/A

57 (500)

2

 JM60400-2CR

500kcmil-4 AWG

51 (450)

(2) Cu 3/0 - 4 AWG

57 (500)

3

JM60400-3CR

 (2) Al 3/0 - 4 AWG

34 (300)

1

JM60400-1MW22

250kcmil-1 AWG 

Cu 3/0-1 AWG

42.37 (375)

2

JM60400-2MW22

2-6 AWG; (2) Cu 2-6 AWG 

Cu 2-6 AWG

31.07 (275)

3

JM60400-3MW22

450-600

1

JM60600-1CR

CVR-J-60600

CVRI-J-60600 2 (2)  

500kcmil-4 AWG

N/A

51 (450)

2

JM60600-2CR

3

JM60600-3CR



Fuse    amp range 

Poles

Covers*

Conductors***

Catalog nos.

 Non-indicating

 Indicating**

Solid and stranded

Fine stranded

Torque    N•m (lb-in

70-100

1

 JM60100-1CR

CVR-J-60100 

CVRI-J-60100

Cu 1-3 AWG 

6.2 (55)

1/0-3 AWG; (2) Cu 4-6 AWG

Cu 4-6 AWG

5.6 (50)

2

 JM60100-2CR

2 4-6 AWG; (2) Cu 8 AWG

Cu 8 AWG

 5.1 (45)

8 AWG; (2) Cu 10-14 AWG

4.5 (40)

3

JM60100-3CR

Cu 10-14 AWG; Al 10-12 AWG

4.0 (35)

110-200

1

JM60200-1CR

CVR-J-60200

CVRI-J-60200

250kcmil-1 AWG

Cu 3/0-1 AWG

42 (375)

2

JM60200-2CR

2-6 AWG; (2) Cu 2-6 AWG 

Cu 2-6 AWG

31 (275)

3

JM60200-3CR

225-400

1

JM60400-1CR

CVR-J-60400 

CVRI-J-60400

600kcmil

N/A

57 (500)

2

 JM60400-2CR

500kcmil-4 AWG

51 (450)

(2) Cu 3/0 - 4 AWG

57 (500)

3

JM60400-3CR

 (2) Al 3/0 - 4 AWG

34 (300)

1

JM60400-1MW22

250kcmil-1 AWG 

Cu 3/0-1 AWG

42.37 (375)

2

JM60400-2MW22

2-6 AWG; (2) Cu 2-6 AWG 

Cu 2-6 AWG

31.07 (275)

3

JM60400-3MW22

450-600

1

JM60600-1CR

CVR-J-60600

CVRI-J-60600 2 (2)  

500kcmil-4 AWG

N/A

51 (450)

2

JM60600-2CR

3

JM60600-3CR

* Covers sold separately. 

** Open fuse indication requires 90 volts minimum and closed circuit to operate. *** Ratings for copper and aluminum conductors except where otherwise noted.

 

Features and benefits:

• Modular, snap-together design permits multi-pole assembly at point-of-use, reducing inventory cost and complexity.

• See-through covers with test probe holes and optional open fuse indication reduce maintenance time by making inspection possible without removing the cover.

• High Short-Circuit Current Rating (SCCR), up to 200kA, helps ensure compliance with NEC® 110.10 requirements



Description

 Amps 

Data sheet no.

Ultimate protection Low-Peak™ LPJ time-delay   fuses

up to 60

1006

70 to 600

1007

Advanced protection Limitron™ JKS fast-acting   fuses

up to 60

1026

70 to 600

1027

High speed Class J DFJ drive   fuses 

up to 600

1048


Terminal type

 AWG type/range

AWG

 Torque N•m(lb-in)

Box lug 

75°C Cu 2-14, AL 2-8

2-3

5.6 (50)

4-6

5.1 (45)

8

4.5 (40)

10-14

4.0 (3.5)

10-32 Phil-slot screw

75/90°C Cu 10-18

10-18

2.3 (20)

Pressure plate