Industry’s First Modular Fuse Blocks
Simplify Design and Enhance Safety
Class R, H(K), & J Fuse
Applications up to 600 Amps
Protection
made simple
™
Knifeblade Fuse Blocks with IP20 Finger-Safe Covers
Cooper Bussmann knifeblade fuse blocks offer a set of 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 Amp and above 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 J,
H(K) or R fuse block.
Safety
For added safety and convenience, only Cooper Bussmann offers optional IP20
finger-safe covers across the entire knifeblade fuse block range. 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.
™
and
™
Service
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 snapping together 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
Control Circuits (UL 508 and UL 845)
• 200 to 600A blocks meet the higher UL creep and clearance
requirements for Industrial Power Distribution Standards
(UL 98, UL 69, 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
CSA - Certified 47235 – 6225-01
Ratings:
Volts: 250V, 600V
Amps: 70-600A
SCCR: 200kA (Class R & J)
10kA (Class H & K)
Flammability Ratings:
Blocks UL 94V0, self-extinguishing
Covers UL 94HB, self-extinguishing
Operating & Storage Temperature Range:
Blocks -40ºC to 120ºC
Covers Non-indicating covers -40ºC to 120ºC
Indicating covers -20ºC to 90ºC
Materials:
Base – Thermoplastic
Box Lug – 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.
Knifeblade Fuse Block Feature Highlights
Features
Optional SeeThrough, Snap-on
Cover for Easy
Visual Inspection*
Vent Slots
Improve
Cooling
Optional Blown Fuse
Indication Speeds
Troubleshooting
•
•
Lockout/Tagout
Feature Improves
Safety
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
•
600A Version
(with double box lug for easier wiring with
smaller, dual conductors)
*No fuse derating necessary.
Knifeblade Fuse Block Part Number Table
250V Class R & H(K)
Catalog Number
Class H(K)
Class R
600V Class R & H(K)
Covers*
w/o Indication w/ Indication
Volts
Fuse Range Number
(amps)
of Poles
HM25100-1CR RM25100-1CR
HM25100-2CR RM25100-2CR
1
70100
CVR-RH-25100 CVRI-RH-25100
HM25100-3CR RM25100-3CR
HM25200-1CR RM25200-1CR
HM25200-2CR RM25200-2CR
HM25200-3CR RM25200-3CR
2
3
CVR-RH-25200 CVRI-RH-25200
250
110200
HM25400-1CR RM25400-1CR
1
2
3
1
225400
2
HM25400-3CR RM25400-3CR
3
HM25600-1CR RM25600-1CR
HM25600-2CR RM25600-2CR
HM25600-3CR RM25600-3CR
CVR-RH-25600 CVRI-RH-25600
450600
1
2
3
CVR-RH-60100 CVRI-RH-60100
70100
HM25400-2CR RM25400-2CR
CVR-RH-25400 CVRI-RH-25400
HM60100-1CR RM60100-1CR
HM60100-2CR RM60100-2CR
1
HM60100-3CR RM60100-3CR
HM60200-1CR RM60200-1CR
HM60200-2CR RM60200-2CR
HM60200-3CR RM60200-3CR
CVR-RH-60200 CVRI-RH-60200
600
110200
HM60400-1CR RM60400-1CR
HM60400-2CR RM60400-2CR
225400
CVR-RH-60400 CVRI-RH-60400
HM60400-3CR RM60400-3CR
HM60600-1CR RM60600-1CR
HM60600-2CR RM60600-2CR
HM60600-3CR RM60600-3CR
450600
CVR-RH-60600 CVRI-RH-60600
Volts
Fuse Range
(amps)
JM60100-1CR
70100
CVRI-J-60100
JM60100-3CR
JM60200-1CR
JM60200-2CR
JM60200-3CR
JM60400-1CR
Number
of Poles
1
CVR-J-60100
2
3
CVR-J-60200
CVRI-J-60200
600
110200
1
2
3
1
225400
2
JM60400-3CR
3
JM60600-1CR
JM60600-2CR
JM60600-3CR
450600
1
2
3
JM60400-2CR
CVR-J-60400
CVR-J-60600
CVRI-J-60400
CVRI-J-60600
*Covers sold serarately. Blown fuse indication requires 90 volts minimum and closed circuit to operate.
**With easyID™ blown fuse indication.
1
2
3
1
2
3
Catalog Number
Covers*
Class J
w/o Indication
w/ Indication
JM60100-2CR
2
3
1
2
3
Class J
Wire Range
1/0-3 AWG
4-6 AWG
8 AWG
10-14 AWG
250 MCM-1 AWG
2-6 AWG
Torque N•m (Lb-in)
5.6 (50)
5.1 (45)
4.5 (40)
4.0 (35)
42 (375)
31 (275)
600kcmil
500kcmil-4 AWG
Cu Dual 3/0 - 4 AWG
Al Dual 3/0 - 4 AWG
57 (500)
51 (450)
57 (500)
34 (300)
(2) 500kcmil-4 AWG
51 (450)
1/0-3 AWG
4-6 AWG
8 AWG
10-14 AWG
250 MCM-1 AWG
2-6 AWG
5.6 (50)
5.1 (45)
4.5 (40)
4.0 (35)
42 (375)
31 (275)
600kcmil
500kcmil-4 AWG
Cu Dual 3/0 - 4 AWG
Al Dual 3/0 - 4 AWG
57 (500)
51 (450)
57 (500)
34 (300)
(2) 500kcmil-4 AWG
51 (450)
Wire Range
1/0-3 AWG
4-6 AWG
8 AWG
10-14 AWG
Torque N•m (Lb-in)
5.6 (50)
5.1 (45)
4.5 (40)
4.0 (35)
250 MCM-1 AWG
2-6 AWG
42 (375)
31 (275)
600kcmil
500kcmil-4 AWG
Cu Dual 3/0 - 4 AWG
Al Dual 3/0 - 4 AWG
57 (500)
51 (450)
57 (500)
34 (300)
(2) 500kcmil-4 AWG
51 (450)
Cooper Bussmann
Fuses
Class H(K):
NON
Class R:
LPN-RK_SP
LPN-RK_SPI**
FRN-R
KTN-R
Class H(K):
NOS
Class R:
LPS-RK_SP
LPS-RK_SPI**
FRS-R
KTS-R
KWS-R
PVS-R
Cooper Bussmann
Fuses
LPJ_SP
LPJ_SPI**
JKS
DFJ
250V Class R & H(K) Dimensional Specifications
Dimensions - mm (in)
153.15
6.030
55.28
2.176
51.05
2.010
70.12
2.761
183.61
7.229
170.74
6.722
60.97
2.401
70-100A
102.10
4.020
71.86
2.829
71.86
2.829
110-200A
135.60
5.338
67.80
2.669
93.69
3.689
75.38
2.968
206.83
8.143
67.54
2.659
221.36
8.715
203.40
8.008
95.98
3.779
95.98
3.779
225-400A
184.92
7.280
92.46
3.640
104.52
4.115
116.14
4.573
257.64
10.143
240.71
9.477
79.89
3.145
277.38
10.920
121.10
4.768
121.10
4.768
450-600A
125.12
4.926
151.25
5.955
151.25
5.955
306.74
12.076
250.24
9.852
289.30
11.390
106.98
4.212
375.36
14.778
134.67
5.302
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
141.12
5.556
600V Class R & H(K) Dimensional Specifications
153.15
6.030
Dimensions - mm (in)
102.10
4.020
51.05
2.010
55.28
2.176
71.86
2.829
221.80
8.732
112.03
4.411
234.44
9.230
70-100A
71.86
2.829
110-200A
133.66
5.262
66.83
2.631
91.69
3.610
75.38
2.968
270.65
10.656
131.35
5.171
284.86
11.215
200.49
7.893
70.12
2.761
95.98
3.779
95.98
3.779
225-400A
184.92
7.280
92.46
3.640
104.52
4.115
116.22
4.576
317.29
12.492
156.47
6.160
334.21
13.158
277.38
10.920
121.10
4.768
121.10
4.768
450-600A
250.24
9.852
125.12
4.926
151.25
5.955
151.25
5.955
383.16
15.085
365.88
14.405
183.56
7.227
375.36
14.778
134.67
5.302
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
141.82
5.583
Class J Dimensional Specifications
Dimensions - mm (in)
153.15
6.030
102.10
4.020
55.28
2.176
51.05
2.010
71.86
2.829
221.80
8.732
112.03
4.411
234.44
9.230
70-100A
71.86
2.829
110-200A
133.66
5.262
91.69
3.610
75.38
2.968
66.83
2.631
270.65
10.656
131.35
5.171
284.86
11.215
200.49
7.893
70.12
2.761
95.98
3.779
95.98
3.779
225-400A
184.92
7.280
92.46
3.640
104.52
4.115
116.22
4.576
317.29
12.492
156.47
6.160
334.21
13.158
277.38
10.920
121.10
4.768
121.10
4.768
450-600A
250.24
9.852
125.12
4.926
151.25
5.955
151.25
5.955
383.16
15.085
365.88
14.405
183.56
7.227
375.36
14.778
134.67
5.302
For engineering drawings, go to www.cooperbussmann.com/KnifebladeFuseBlocks
141.82
5.583
Broadest Range of Modular Finger-Safe Knifeblade Fuse Blocks
More Cooper Bussmann Fuse Blocks and Holders
Modular
Knifeblade
Fuse Blocks
with
Finger-safe
Covers
UL, IEC & PV
CH Modular
Fuse Holder
Series
Open Design
Knifeblade
Series
CUBEFuse™
Holder
Series
IEC CH
Fuse Holder
Series
Open Design
Knifeblade
Series
Class J CH
Fuse Holder
Series
In-line
Fuse Holder
Series
Class J
JTN 600
Fuse Holder
Series
Panel Mount
Fuse Holder
Series
Optima®
Midget &
Class CC
Series
SAMI™
Fuse Covers
Series
Open Design
Class CC &
Midget Series
Military
Fuse Holder
Series
Customer Assistance
Available to answer questions regarding Cooper
Bussmann products & services Monday-Friday,
8:00 a.m. – 6:00 p.m. Central Time. Contact:
Application Engineering
Technical assistance is available to all customers.
Application support is available Monday-Friday,
8:00 a.m. – 5:00 p.m. Central Time. Contact:
• Toll-free phone: 855-287-7626 (855-BUSSMANN)
• Toll-free fax: 800-544-2570
• E-mail: busscustsat@cooperindustries.com
• Toll-free phone: 855-287-7626 (855-BUSSMANN)
• E-mail: fusetech@cooperindustries.com
• Live Chat: www.cooperbussmann.com
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:
Online Resources
Visit www.cooperbussmann.com for the following
resources:
Customer Satisfaction Team
• 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
• Where to purchase Cooper Bussmann product
• After hours 314-995-1342
C3 – the Enhanced, Online Cooper Customer Center
Provides real time product availability, net pricing, order
status & shipment tracking across six Cooper divisions:
B-Line, Bussmann, Crouse-Hinds, Lighting, Power
Systems & Wiring Devices. Call 877-995-5955 for
log-in assistance. Available at:
• www.cooperc3.com
Cooper Bussmann
St. Louis, MO 63178
636-394-2877
w w w. c o o p e r b u s s m a n n . c o m
Your Authorized Cooper Bussmann Distributor is:
Cooper Industries plc
600 Tra vis, Ste. 5600
Houston, TX 77002-1001
P: 713-209-8400
www.cooperindustries.com
Reorder # 3192
0412-2.5M
Printed in USA