CAMaster HRC Fuse Holders
30, 60, and 100 Amps; 600Vac
CAMaster Ratings
Rating
30 Amp
30 Amp
60 Amp
100 Amp
Details
For
HRCI-CA
Applications
For
HRCII
Applications
Reference
CM20CF
CM30CF
CM60CF
CM100CF
CM_CF
Fuse
Accommodated
---C1F21
---H07C
---KO7C
---K07CR
Accessories for CAMaster Units
Rating
Details
Back Stud
Ganging
Link Kit
660V Neon
Indicator
600V Neon
Indicator
Security
Carrier
with Clip.
Clip Only
Reference
20BS
30BS
60/100BS
GLP
NI-660
NI-600
20LSC
30LSC
60/100LSC
20CML
Fuse
Accommodated
For CM20CF
For CM30CF
For CM60/100CF
For 3-Pole
–
–
For CM20CF
For CM30CF
For CM60/100CF
For all sizes
Catalog Symbol: CM_CF
CAMaster HRC Fuse Holders
30, 60, and 100 Amps
Agency Approvals: CSA C22.2 NO. 39
IEC 269 and BS88
• Range: 30 (miniature), 30, 60, and 100 Amps at 600Vac
• A range of fully shrouded HRC fuse holders having an
advanced design.
• They incorporate a high level of innovation, with enhanced
performance characteristics and comply with the
requirements of: CSA C22.2 No. 39 as well as IEC 269 and
BS88 standards.
Unique Cam Action
• The fuse carriers are fitted with a cam for ease of removal
from the fuse bases allowing significantly improved contact
pressure between fuse carrier and fuse base contacts, with
a corresponding enhanced electrical performance level.
• This design overcomes a major problem of all existing dead
front style fuse holders manufactured worldwide, which have
to compromise between difficulties of fuse carrier removal
from base and contact pressure achieved.
Lockable Safety Carriers
• A range of lockable safety carriers for the CAMaster fuse
holder (Cat ref: LSC), are available.
• This distinct feature ensures isolation can be achieved
allowing maintenance to be carried out in safety.
Mounting Torque and Cable Size
Ref
CM20CF
CM30CF
CM60CF
CM100CF
Fuse Mounting
Tightening Torques
1.5N•m 1.11 lb-ft
1.5N•m 1.11 lb-ft
2.0N•m 1.48 lb-ft
2.0N•m 1.48 lb-ft
Max Cable
Size
#2
#2
2/0
2/0
30 Amp
30 Amp
60/100 Amp
All
All
All
30 Amp
30 Amp
60/100 Amp
All
Panel Drilling Plans, Viewed from Front of Panel
C
L
C
L
0.25"
6.35mm
0.13"
3.2mm
C
L
1.14"
29.0mm
1.14"
29.0mm
0.22"
ø5.5mm
C
L
0.22"
1.46" ø5.5mm
37.0mm
1.46"
37.0mm
0.13"
3.2mm
0.75"
ø19mm
0.59"
ø15.0mm
CM20CF
C
L
0.25"
6.35mm
CM30CF
0.25"
6.35mm
0.13"
3.2mm
C
L
0.22"
1.46" ø5.5mm
37.0mm
1.62"
41.0mm
0.13"
3.2mm
0.75"
ø19mm
0.25"
6.35mm
CM60B + 100CF
08-09 BU-SB09579
Page 1 of 3
Data Sheet 4132
Two/Three Pole Ganging
The unique design of the carriers allows ganging to be
readily achieved by the use of standard
accessories. This provides improved
safety related to isolation and
protection of 2-Pole and 3-
Pole electrical circuits by
ensuring that the
correctly related
poles are
removed at the
same time. (See
Fig. 5.)
1
2
3
4
Figure 2. Unique Conversion Capability
Unique Conversion Capability
The standard fuse holders can be readily converted from
front connection to front/back stud and double-back stud
connection types at the point of use. This is achieved with a
unique back stud accessory and the use of a screwdriver.
See conversion sequence in Fig. 2. Steps 1, 2 and 3 show
removal of ferrule end and insertion of back stud accessory
to give the front/back stud connection type. This sequence
repeated at the opposite end gives the double-back stud
connection type shown in step 4.
Dual
Mounting
Capability
Figure 5. Two/Three
Pole Ganging.
The design as standard provides both bolted panel and
DIN rail mounting features. The DIN rail mounting facility
for each of the various dimensioned ratings is so designed
as to give equal height and depth above the DIN rail.
Unique Cable Termination
The fuse holder’s unique cable terminations are designed
for user convenience and to ensure
long-term reliability. They incorporate
stainless steel saddles and
hardened termination screws,
maintaining permanent cable
clamping to profiled contact plates.
The main electrical contact path
between the cable and fuse link tag
is shown highlighted. This permits
the use of high tightening torques
without damage to cables or threads
and provides resistance to high
Figure 3. Unique
cable pull out forces. (See Fig. 3.)
Cable Termination
The fuse holders are supplied with
the hardened termination screws backed out ready for
cable insertion, saving installation time.
Hinged Internal Shields
Non-removable full shrouding of live parts within the fuse
base is provided by the use of hinged shields. The positive
captive nature of these ensures that they cannot be
omitted during installation and are so designed that
insertion of the fuse carrier can only be made with them
correctly positioned.
Neon Indicator
Neon clip-in indicator
accessories are
available providing clear
location and status
of fuses which
have opened. (See
Fig. 6.)
Hinged Captive Screws
The fuse fixing screws to fuse carrier are
held in captive hinges providing ease
of fixing and preventing loss
during installation.
(See Fig. 4.)
Figure 6.
Neon Indicators.
Circuit
Identification
The fuse carrier has a marking label for ease of circuit
identification.
Figure 4. Hinged
Captive Screws
Strip Length Marking
The length of cable insulation that should be stripped off is
shown on the side of the fuse base.
08-09 BU-SB09579
Page 2 of 3
Data Sheet 4132
Figure 4. Two- and Three-Pole Ganging.
Figure 5. Neon Indicators.
Dimensions - in (mm)
Standard Front Connected Unit
A
D
C
E
STRIP
Front/Back Stud and Double Back Stud Connected Units
F
C
L
44
OF DIN RAIL
STRIP
B
35mm
DIN RAIL
G
STRIP
H
øK
STRIP
øJ
Rating
Amps
30
30
60
100
Catalog
Number
CM20CF
CM30CF
CM60CF
CM100CF
Category
HRCI-CA
HRCII-C
HRCII-C
HRCII-MISC
Dimensions - in (mm)
A
1.0
(25.4)
1.25
(31.8)
1.40
(35.6)
1.40
(35.6)
B
3.69
(93.7)
4.63
(117.5)
4.93
(125)
4.93
(125)
C
2.36
(60)
2.36
(60)
2.36
(60)
2.36
(60)
D
0.13
(3.2)
0.13
(3.2)
0.19
(4.75)
0.19
(4.75)
E
0.64
(17.5)
0.69
(17.5)
0.65
(16.4)
0.65
(16.4)
F
2.60
(66)
2.60
(66)
3.41
(86.5)
3.41
(86.5)
G
2.29
(58)
2.92
(74)
3.14
(79.8)
3.14
(79.8)
H
1.13
(28.6)
1.13
(28.6)
1.13
(28.6)
1.13
(28.6)
J
0.47
(11.9)
0.47
(11.9)
0.47
(11.9)
.47
(11.9)
K
M6
M6
M8
M8
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of
this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical informa-
tion that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of
any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice,
any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
© 2009 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
08-09 BU-SB09579
Page 3 of 3
Data Sheet 4132
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