Modular Knifeblade Fuse Blocks
Industry’s first
modular fuse block
simplifies design and
enhances safety
Increase flexibility and
electrical safety with
Bussmann’s snap-together
Class H(K), J, and R
knifeblade fuse blocks.
protection solutions to meet
every application need,
Eaton and Bussmann offer
unmatched leadership in
circuit protection.
As the only company with a
complete portfolio of circuit
More expertise. More
solutions. Expect more.
Leadership in Circuit Protection.
The only company
that can provide a complete circuit
protection solution for all applications.
Only Eaton can deliver...
•
The most diverse solutions to mitigate arc flash energy to keep people and equipment safe
•
The smallest and most cost effective way to meet selective coordination requirements
•
The most experienced, time-tested solutions to meet national & local code requirements
•
The easiest specifications with the most tested fuse/circuit breaker and circuit breaker/circuit breaker
series rated combinations
•
The only one-stop shop to solve your design challenges using our expertise and an unmatched portfolio
The Eaton advantage.
Powering business worldwide
As a global diversified power management company, we
help customers worldwide manage the power needed for
buildings, aircraft, trucks, cars, machinery and businesses.
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in all its forms, more practical and accessible.
With 2012 sales of $16.3 billion, Eaton has approximately
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in more than 175 countries.
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Knifeblade Fuse Blocks with IP20 Finger-Safe Covers
Bussmann knifeblade fuse blocks offer advantages you can’t find
anywhere else.
Modularity
The only snap-together design on the market permits assembly of required poles at point-of-use.
Factory assembled two- and three-pole configurations are also available.
Best Ratings
All fuse blocks meet UL creep and clearance requirements for Industrial Control Circuits (UL 508,
UL 845). 200 to 600A blocks meet the higher UL Industrial Power Distribution Standards
(UL 98, UL 67, UL 489, UL 891, and UL 869A).
Ease-of-Use
Optional high-clarity, see-through finger-safe covers with test probe holes make routine
maintenance activities easy. No need to open the cover to inspect wire terminations or to take
thermography measurements. Available with any Class H(K), J or R fuse block.
Safety
For added safety and convenience, only Bussmann offers optional IP20 finger-safe covers
across the entire knifeblade fuse block product line. Built-in lockout/ tagout feature improves
safety. Blown fuse indication option on fuse cover assists in troubleshooting, while standard
phase barriers between poles enhance safety.
QuikShip Services
In stock for QuikShip Everyday Service - 90% of orders ship within 24 hours.
QuikShip Emergency Service ensures availability 24/7, 365 with “Next flight out” courier
service.
™
™
Knifeblade Fuse Block Features & Specifications
Features and Benefits
• Integral dovetails allow assembly of multiple poles at
point-of-use for greater application flexibility
• Factory assembled two- and three-pole configurations available
• Up to four mounting holes per pole increase installation flexibility
• Standard phase barriers between poles for additional safety
• Design meets UL creep and clearance requirements for Industrial
Power Circuits (UL 508 and UL 845)
• 200 to 600A blocks meet the higher UL creep and clearance
requirements for Power Distribution Standards (UL 98, UL 67, UL 489,
UL 891 and UL 869A)
• Optional IP20 finger-safe covers available on entire knifeblade fuse
block product line:
– High-clarity see-through covers allow for inspecting wire
terminations or thermography measurements without removing cover
– Probe holes included for easy, safer testing and troubleshooting
– Built-in lockout/tagout feature improves safety
• Standard fuse clip reinforcing springs enhance electrical contact
Specifications
Agency information:
Blocks - UL - Listed cULus E14853 – IZLT & IZLT7
CSA - Certified 47235 – 6225-01
Covers - UL - Listed UL E58836 – JDVS2
Ratings:
Volts - 250V, 600V
Amps - 70-600A
SCCR - 200kA (Class J & R)
10kA (Class H & K)
Flammability ratings:
Blocks - UL 94V0, self-extinguishing
Covers - UL 94HB, self-extinguishing
Operating and storage temperature range:
Blocks - -40ºC to 120ºC
Covers - Non-indicating covers -40ºC to 120ºC
- Indicating covers -20ºC to 90ºC
Materials:
Base - Thermoplastic
Box Lug Terminals - Tin-plated aluminum
Wire:*
Cu/Al – 75ºC/90ºC (100 - 200A)
Cu/Al – 75ºC only (400 - 600A)**
*Higher temperature rated wire can be used with appropriate derating.
**400A Class J double box lug rated for 75ºC/90ºC Cu/Al.
4
For more information visit www.cooperbussmann.com/KnifebladeFuseBlocks
Knifeblade Fuse Block Feature Highlights
Features
Optional blown fuse
indication speeds
troubleshooting
Optional seethrough, snap-on
cover for easy
visual inspection
Lockout/tagout
feature improves
safety
•
Vent slots
improve
cooling*
•
•
Probe holes for
easy testing without
removing cover
•
•
•
•
•
•
Finger grips on cover
for easy removal
Standard phase
barriers for
additional
safety
•
Multiple
mounting
holes for each
pole provide
flexible,
secure
mounting
Toolless
interlocking
modular design
for easy
point-of-use
assembly
Finger-safe wire
entry with
cutout tabs for
larger wires
on all versions
*No fuse derating necessary.
600A Version
400A Class J Version
(double box lug standard for
easier wiring with smaller,
dual conductors)
(JM60400-_MW22 with double
box lug for easier wiring with
smaller, dual conductors)
For more information visit www.cooperbussmann.com/KnifebladeFuseBlocks
5
Knifeblade Fuse Block Part Number Table - 250 and 600V Class H(K) & R
250V Class H(K) and R
Catalog Number
Class H(K)
Class R
Covers*
w/o Indication w/ Indication
600V Class H(K) and R
Volts
Fuse Range
(amps)
Number Wire Range
of Poles (solid and stranded)***
HM25100-1CR RM25100-1CR
CVR-RH-25100 CVRI-RH-25100
100
2
4-6 AWG; (2) Cu 8 AWG
8 AWG
5.1 (45)
8 AWG; (2) Cu 10-14 AWG
–
4.5 (40)
Cu 10-14 AWG; Al 10-12 AWG –
4.0 (35)
1
HM25200-3CR RM25200-3CR
200
250
1
225CVR-RH-25400 CVRI-RH-25400
2
400
HM25400-3CR RM25400-3CR
3
HM25600-1CR RM25600-1CR
HM25600-2CR RM25600-2CR
2
450CVR-RH-25600 CVRI-RH-25600
600
3
HM60100-1CR RM60100-1CR
1
70100
CVR-RH-60100 CVRI-RH-60100
HM60100-3CR RM60100-3CR
HM60200-2CR RM60200-2CR
110CVR-RH-60200 CVRI-RH-60200
HM60200-3CR RM60200-3CR
200
600
1
2
1
CVR-RH-60400 CVRI-RH-60400
225-
2
400
HM60400-3CR RM60400-3CR
3
HM60600-1CR RM60600-1CR
1
HM60600-2CR RM60600-2CR
450CVR-RH-60600 CVRI-RH-60600
42 (375)
2-6 AWG; (2) Cu 2-6 AWG
2-6 AWG
31 (275)
600
HM60600-3CR RM60600-3CR
*Covers sold serarately. Blown fuse indication requires 90 volts minimum and closed circuit to operate.
**With easy ID™ blown fuse indication.
***Ratings for copper and aluminum wire except where otherwise noted.
Class R:
LPN-RK_SP
LPN-RK_SPI**
600kcmil
57 (500)
FRN-R
500kcmil-4 AWG
51 (450)
KTN-R
N/A
(2) Cu 3/0 - 4 AWG
57 (500)
(2) Al 3/0 - 4 AWG
34 (300)
(2) 500kcmil-4 AWG
N/A
51 (450)
–
1/0-3 AWG; (2) Cu 4-6 AWG
1-3 AWG
4-6 AWG
6.2 (55)
5.6 (50)
4-6 AWG; (2) Cu 8 AWG
8 AWG
5.1 (45)
8 AWG; (2) Cu 10-14 AWG
–
4.5 (40)
Cu 10-14 AWG; Al 10-12 AWG –
4.0 (35)
250 MCM-1 AWG
3/0-1 AWG
42 (375)
2-6 AWG; (2) Cu 2-6 AWG
2-6 AWG
31 (275)
3
HM60400-1CR RM60400-1CR
HM60400-2CR RM60400-2CR
2
3
HM60200-1CR RM60200-1CR
3/0-1 AWG
NON
1
2
HM25600-3CR RM25600-3CR
HM60100-2CR RM60100-2CR
250 MCM-1 AWG
3
HM25400-1CR RM25400-1CR
HM25400-2CR RM25400-2CR
Class H(K):
6.2 (55)
5.6 (50)
HM25200-1CR RM25200-1CR
110-
Bussmann
Fuses
1-3 AWG
4-6 AWG
3
CVR-RH-25200 CVRI-RH-25200
Torque
–
1/0-3 AWG; (2) Cu 4-6 AWG
HM25100-3CR RM25100-3CR
HM25200-2CR RM25200-2CR
(fine stranded Cu) N•m (Lb-In)
1
70-
HM25100-2CR RM25100-2CR
Wire Range
2
3
Class H(K):
NOS
Class R:
LPS-RK_SP
LPS-RK_SPI**
600kcmil
500kcmil-4 AWG
57 (500)
FRS-R
51 (450)
KTS-R
(2) Cu 3/0 - 4 AWG
57 (500)
KWS-R
(2) Al 3/0 - 4 AWG
34 (300)
PVS-R
(2) 500kcmil-4 AWG
N/A
N/A
51 (450)
Knifeblade Fuse Block Part Number Table - Class J
Class J
Catalog Number
Class J
Covers*
w/o Indication w/ Indication
Volts
Fuse Range
(amps)
JM60100-1CR
JM60100-2CR
CVR-J-60100
70-
CVRI-J-60100
Number
of Poles
Wire Range
(solid and stranded)***
Wire Range
Torque
(fine stranded) N•m (Lb-In)
1
–
1/0-3 AWG; (2) Cu 4-6 AWG
1-3 AWG
6.2 (55)
4-6 AWG
5.6 (50)
2
4-6 AWG; (2) Cu 8 AWG
8 AWG
5.1 (45)
8 AWG; (2) Cu 10-14 AWG
–
4.5 (40)
Cu 10-14 AWG; Al 10-12 AWG –
4.0 (35)
250 MCM-1 AWG
3/0-1 AWG
42 (375)
2-6 AWG; (2) Cu 2-6 AWG
2-6 AWG
31 (275)
100
JM60100-3CR
3
JM60200-1CR
JM60200-2CR
110CVR-J-60200
CVRI-J-60200
200
JM60200-3CR
2
3
600
JM60400-1CR
2
CVR-J-60400-M CVRI-J-60400-M
225-400
JM60400-1MW22†
3
JM60400-3MW22†
3
JM60600-1CR
1
JM60600-2CR
450CVR-J-60600
CVRI-J-60600
JM60600-3CR
600
2
600kcmil
57 (500)
JKS
500kcmil-4 AWG
51 (450)
DFJ
(2) Cu 3/0 - 4 AWG
57 (500)
(2) Al 3/0 - 4 AWG
1
2
JM60400-2MW22†
LPJ_SP
LPJ_SPI**
1
JM60400-2CR
JM60400-3CR
1
Bussmann
Fuses
N/A
34 (300)
(2) 350kcmil-1 AWG
42 (375)
(2) 2 AWG - 6 AWG
51 (275)
(2) 500kcmil-4 AWG
N/A
51 (450)
3
*Covers sold serarately. Blown fuse indication requires 90 volts minimum and closed circuit to operate.
**With easyID™ blown fuse indication.
***Ratings for copper and aluminum wire except where otherwise noted.
†400A Class J double box lug rated for 75oC/90oC Cu/Al.
Double Box Lug Configurations
• Allows for ease of installation with smaller, more flexible wire
• Capable of achieving maximum current rating with parallel
copper or aluminum wires
• Standard on all 600A blocks
• Optional on 400A Class J blocks
• Compatible with IP20 finger-safe covers††
For Class J 400A double box lug configuration, optional cover provides IP20 finger-safe protection for
dual 350kcmil-1 AWG wires or one single 350kcmil-6 AWG wire.
††
Optional 400A
Class J Version
(JM60400-_MW22)
All 600A Versions
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
7
250V Class H(K) and R Dimensional Specifications
Dimensions - mm (in)
70-100A
110-200A
225-400A
450-600A
8
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
600V Class H(K) & R Dimensional Specifications
Dimensions - mm (in)
70-100A
110-200A
225-400A
450-600A
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
9
Class J Dimensional Specifications
Dimensions - mm (in)
70-100A
110-200A
225-400A
1.26
[4.9]
Optional Lug
Standard Lug
450-600A
10
For more information visit www.cooperbussmann.com/KnifebladeFuseBlocks
1.26
[4.9]
More Bussmann Fuse Blocks, Holders and Accessories
Modular
knifeblade
fuse blocks
with
finger-safe
covers
UL, IEC & PV
CH modular
fuse holder
series
UL Type 1
NEMA 4X
SPDs
Comb-bus bar
accessories
for CH Series
fuse holders
IEC CH
fuse holder
series
CUBEFuse™
holder
series
Class J
CH fuse holder
series
Open design
ferrule fuse
block series
Class J
JTN 600
fuse holder
series
Finger-safe,
high SCCR
power
distribution
blocks
Optima™
midget &
Class CC
series
DIN-Rail
terminal
blocks
Open design
Class CC &
midget series
Compact
circuit
protector
fused
disconnect
switches
For product data sheets, visit www.cooperbussmann.com/DatasheetsEle
11
Customer Assistance
Customer Satisfaction Team
Application Engineering
Available to answer questions regarding Bussmann
products & services Monday-Friday, 7:00 a.m. – 6:00 p.m.
Central Time. Contact:
Technical assistance is available to all customers.
Application support is available Monday-Friday,
7:00 a.m. – 5:00 p.m. Central Time. Contact:
• Toll-free phone: 855-287-7626 (855-BUSSMANN)
• Toll-free phone: 855-287-7626 (855-BUSSMANN)
• Toll-free fax: 800-544-2570
• E-mail: fusetech@cooperindustries.com
• E-mail: busscustsat@cooperindustries.com
Online Resources
Emergency and After-Hours Orders
Next flight out or will call shipment for time-critical needs.
Customers pay only standard product price, rush freight
charges, & modest emergency service fee. Place these
orders through the Customer Satisfaction Team during
regular business hours. For after-hours, contact:
• After hours 314-995-1342
Visit www.cooperbussmann.com for the following
resources:
• Product search & cross-reference
• Product & technical materials
• Solutions centers for information on topical issues
including arc flash, selective coordination & short-circuit
current rating
• Technical tools, like our arc flash calculator
C3 – the Enhanced, Online Cooper Customer Center
• Where to purchase Bussmann product
Provides real time product availability, net pricing, order
status & shipment tracking for: B-Line, Bussmann,
Crouse-Hinds, Lighting, Power Systems & Wiring Devices.
Call 877-995-5955 for log-in assistance. Available at:
• www.cooperc3.com
Eaton’s Bussmann Business
PO Box 14460
St. Louis, MO 63178-44602
www.bussmann.com
Your authorized distributor is:
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
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All Rights Reserved
Printed in USA
Publication No. 3192
August 2013
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