POWR-PRO
®
Fuses
CCMR Series POWR-PRO
®
Class CC and CD Fuses
600 VAC • Dual-Element, Time-Delay • 2/10 – 60 Amperes
circuits than would be possible if using fast-acting fuses. CCMR series
fuses provide superior protection in a fraction of the space required by
other fuse classes. For example, when 600V three pole, 30 ampere Class
R fuse blocks are replaced by Littelfuse Class CC fuse blocks, mounting
space requirements may be reduced 70% or more. This is especially
important when a panel contains control devices for many motors.
In addition to the UL Listed smaller sizes, Littelfuse CCMR series fuses
are now available in larger sizes — from 35 to 60 amperes!
No other
POWR-PRO
®
Fuses
fuse is available with this current carrying capacity in a package
this small. In fact, the 60 ampere CCMR fuse is the smallest 60A
fuse available rated at 600 volts.
Applications
CCMR series fuses are specifically designed to withstand sustained
starting currents of small motors
Provide short-circuit protection for motor branch circuits
Use with IEC- and NEMA-rated motor controllers and contactors
General purpose circuits up to 60 amps
Features/Benefits
For space saving protection of motor circuits up to 40 HP*, we
recommend Littelfuse POWR-PRO CCMR series fuses. These fuses
are the only true dual-element, time-delay fuses that come in a small
package specifically engineered for motor branch circuit protection.
CCMR series fuses provide Type 2 “No Damage” protection to both
NEMA-rated and the more sensitive IEC (International Electrotechnical
Commission) type motor circuit components.
Rating for rating, CCMR fuses are the most current-limiting fuses
available. They also provide superior short-circuit protection since their
time-delay characteristics permit the use of smaller fuse ratings in motor
• Space savings — No other fuse class approved for branch circuit
protection has a 600 volt rating and 300,000 A.I.R. in such a small
package.
• Extremely current-limiting — Reduces damage caused by heating
and magnetic effects of short-circuit currents. Stops damaging short-
circuit currents faster than any mechanical protective device.
• Excellent time-delay — Eliminates needless downtime caused by
power surges or equipment demands. Permits selection of fuse sizes
closer to actual load conditions, which provides better protection.
• 300kA Interrupting Rating — Littelfuse self-certified to 300,000
amperes as standard. Meets future trend towards higher available
short-circuit currents.
* onsult the Motor Protection Tables in the Fuseology section for specific motor sizing information
C
Note: For availability of RoHS compliant product, call 1-800-TEC-FUSE.
Specifications
Voltage Ratings:
AC: 600 Volts
DC: 250 Volts (CCMR
2
⁄
10
— 2A)
(CCMR 4
1
⁄
2
— 10A)
(CCMR 35 — 60A)
300 Volts (CCMR 2
1
⁄
4
— 4A)
500 Volts (CCMR 12 — 30A)
Interrupting Ratings:
AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified)
DC: 20,000 amperes
2
Ampere Range:
⁄
10
— 60 amperes
Approvals:
AC: Standard 248-4, Class CC
UL Listed
2
⁄
10
– 30 amps (File No: E81895)
Standard 248, Class CD
UL Listed 35 – 60 amps (File No: E81895)
CSA Certified
2
⁄
10
– 60 amps
(File No: LR29862)
DC: Littelfuse self-certified
0
Ampere Ratings
2
⁄
10
1
⁄
4
3
⁄
10
1
⁄
2
6
⁄
10
8
⁄
10
1
1
1
⁄
4
1
4
⁄
10
1
1
⁄
2
1
6
⁄
10
1
8
⁄
10
2
2
1
⁄
4
2
1
⁄
2
2
8
⁄
10
3
3
2
⁄
10
3
1
⁄
2
4
4
1
⁄
2
5
5
6
⁄
10
6
6
1
⁄
4
7
7
1
⁄
2
8
9
10
12
15
17
1
⁄
2
20
25
30
35
40
45
50
60
Example part number (series & amperage): CCMR 40
Recommended Fuse Blocks
LPSC (CCMR
2
⁄
10
— 30A)
L60030C series (CCMR
2
⁄
10
— 30A)
L60060C series (CCMR 35 — 60A)
Refer to Blocks & Holders section of this catalog for additional information.
www.littelfuse.com
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
POWR-PRO
®
Fuses
CCMR Series POWR-PRO
®
Class CC and CD Fuses
600 VAC • Dual-Element, Time-Delay • 2/10 – 60 Amperes
(38.1 mm)
1.50"
(6.4 mm)
.25"
POWR-PRO
®
Fuses
0-30A
.50"
(10.3 mm)
.41"
(21.6 mm)
.850"
35-60A
(12.7 mm)
(3.2 mm)
(47.8 mm)
.125"
1.880"
Current-Limiting Effects of CCMR (600V) fuses
Short Circuit Current*
5,000
0,000
5,000
0,000
5,000
30,000
35,000
0,000
50,000
0,000
0,000
00,000
50,000
00,000
Apparent RMS Symmetrical For Various Fuse Ratings
A
160
180
200
220
230
240
245
255
260
280
300
310
340
350
A
190
220
250
260
280
290
300
310
330
340
360
380
420
440
⁄
A
330
400
430
460
480
500
520
550
570
600
625
650
700
750
0A
370
440
480
520
550
570
590
600
640
670
700
750
800
850
A
525
600
675
720
750
800
825
850
875
900
1,000
1,050
1,150
1,200
5A
600
700
775
825
850
900
925
975
1,000
1,050
1,125
1,200
1,300
1,400
0A
625
725
800
850
900
950
975
1,000
1,100
1,125
1,200
1,250
1,400
1,450
30A
750
875
950
1,000
1,050
1,125
1,175
1,200
1,300
1,350
1,400
1,500
1,600
1,750
*Prospective RMS Symmetrical Amperes Short-Circuit Current
Note: Data Derived from Peak Let-Thru Curves
8/10A
1A
1 1/4A
1 1/2A
1 8/10A
2A
2 1/2A
3A
3 1/2A
4A
6A
8A
10A
12A
15A
20A
25A
30A
35A
1000
800
600
400
300
200
100
80
60
40
30
20
1000000
800000
600000
400000
300000
200000
100000
80000
60000
40000
30000
20000
10000
8000
6000
4000
3000
2000
1000
800
600
400
300
200
100
100
200
300
400
600
800
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
60A
30A
20A
15A
12A
10A
6 1/4A
4A
2A
1/4A
1/2A
TIME IN SECONDS
10
8
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
.01
.05
.08
.1
.2
.3
.4
.6
.8
1
2
3
4
6
8
10
20
30
40
60
80
100
60A
200
300
400
CURRENT IN AMPERES
© 2005 Littelfuse
•
POWR-GARD
™
Products Catalog
578006
www.littelfuse.com
600
800
1000
PCB设计
