CCMR31/2 [LITTELFUSE]
Fuse;
| 型号： | CCMR31/2 |
| 厂家： | 
LITTELFUSE |
| 描述： | Fuse |
| 文件： | 总3页 (文件大小：634K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Class CC Fuses
ꢀ
600 VAC 1/10 – 60 Amperes
SPECIFICATIONS
Voltage ratings:AC: 600 Volts
DC: 250 – 500 Volts (CCMR)†
300 Volts (KLDR)
300 Volts (KLKR)
Interrupting ratings: AC: 200,000 amperes
GENERAL
PURPOSE
FUSES
rms symmetrical
DC: 20,000 amperes
Ampere range:CCMR: 2/10 — 60 amperes
KLDR: 1/10 — 30 amperes
KLKR: 1/10 — 30 amperes
Approvals: CCMR:2/10 — 30A: UL Listed Time-Delay
Class CC fuses
per UL 248
(formerly UL 198C)
(File No. E81895).
CSA Certified HRCI-MISC
(File No. LR29862).
35 — 60A: UL Listed Class CD fuses
(File No. E71611).
CSA Certified
(File No. LR29862).
KLDR: UL Listed Time-Delay Class CC fuses
per UL 198C (File No. E81895)
CSA Certified HRCI-MISC
(File No. LR29862)
KLKR: UL Listed Fast-Acting Class CC fuses
per UL 198C (File No. E81895)
Compared to other UL Listed fuses, Class CC fuses are the
most current limiting, rating for rating. Because they are
physically compact, they provide this 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, panel
mounting space is reduced approximately 70%. This is
especially important when a panel contains many fuses to
protect multiple circuit components.
CSA Certified HRCI-MISC
(File No. LR29862)
RECOMMENDED FUSE BLOCKS
L60030C series
L60060C series (for CCMR 35–60A)
Refer to Fuse Block section of this catalog for additional
information.
APPLICATIONS
Three Types of Class CC Fuses, Specifically Designed
to Protect Different Types of Components
1) Motor protection — CCMR series; dual-element, time-
delay fuses specifically designed to protect motor circuits
up to 40 HP**.
†Refer to the POWR-PRO® section for additional information.
2) Small transformer protection (control power
transformers) — KLDR series, time-delay fuses designed
to withstand the high magnetizing inrush of transformers.
3) General purpose protection of equipment requiring
fast overload protection — KLKR series, fast-acting
fuses used for protection of equipment containing solid-
state devices or other electronic components requiring fast
response on overloads.
.25"
(6.4 mm)
1.50"
(38.1 mm)
.41"
0-30A
(10.3 mm)
.125"
SAFETY
(3.2 mm)
.50"
ꢀ
200,000 A.I.R. — Reliable interruption of all overcurrents up
to 200,000 amperes.
(12.7 mm)
ꢀ
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.
.850 +-.020
SPACE SAVING
Class CC fuses are the smallest 600V, 200,000 A.I.R. fuses
35-60A
ꢀ
approved for branch circuit protection.
ECONOMICAL
ꢀ
Current limiting design often permits use of readily avail-
1.880 REF.
able, less costly equipment.
**Consult the Motor Protection Tables in the Fuseology section for
specific motor sizing information
43
Class CC Fuses
ꢀ
600 VAC 1/10 – 60 Amperes
CCMR Series
KLDR Series
KLKR Series
For space-saving protection of motor cir- For more information on CCMR series
cuits up to 40 HP**, we recommend
Littelfuse POWR-PRO® CCMR series
fuses. These fuses are the only true
dual-element time-delay CC fuses
specifically engineered for motor branch
circuit protection. They provide Type II
protection (no damage) to both NEMA-
rated and the more sensitive IEC
(International Electromechanical Com-
mission) type motor circuit components.
CCMR series fuses are now available in
larger sizes — from 35 to 60 amperes!
No other 600V fuse is available with
this current carrying capacity in a
package this small.
Class CC fuses, see the CCMR series
pages in the POWR-PRO® section of
this catalog.
1/10 — 30A:UL Listed Time-Delay
Class CC per UL 198C
35 — 60A: UL Listed Class CD
GENERAL
PURPOSE
FUSES
AMPERE RATINGS
2
⁄
4
10
11⁄
4
21⁄
2
5
9
30
35
40
45
50
60
1
3
1
6
8
⁄
14⁄10
28⁄10
3
56⁄10
6
10
12
15
⁄
10
11⁄
2
⁄
2
16⁄10
18⁄10
2
32⁄10
61⁄
4
⁄
⁄
10
31⁄
2
7
171⁄
20
2
10
4
71⁄
2
1
21⁄
4
41⁄
2
8
25
Example part number (series &
amperage): CCMR 30
**Consult the Motor Protection Tables in the Fuse-
ology section for specific motor sizing information
KLDR fuses are time-delay fuses specif-
ically designed for the protection of con-
trol transformers, solenoids and similar
inductive components with high magne-
tizing currents during the first half-cycle.
They closely match most control power
transformer characteristics, which per-
mits the fuses to be sized in accordance
with the latest revisions of UL 508
(Industrial Control) and UL 845 (Motor
Control Centers). When the time delay
of KLDR fuses is adequate to carry
motor starting current, they provide ex-
cellent protection of motor branch cir-
cuits containing IEC or NEMA rated
motor controllers or contactors.
AMPERE RATINGS
1
1
⁄
8
10
⁄
10
2
14⁄10
28⁄10
3
56⁄10
10
12
15
1
6
3
8
⁄
⁄
11⁄
2
6
15
⁄100
⁄
4
16⁄10
18⁄10
2
32⁄10
61⁄
4
3
⁄
16
⁄
10
31⁄
2
7
171⁄
20
25
30
2
2
⁄
10
1
4
71⁄
8
2
1
3
4
⁄
4
11⁄
11⁄
8
21⁄
4
41⁄
2
⁄
10
4
21⁄
2
5
9
⁄
10
Example part number (series &
amperage): KLDR 5 6⁄10
KLKR series Class CC fuses are fast-
acting fuses intended for general pur-
pose branch circuit protection. Their
compact size, fast-acting overload
response, and their highly current limit-
ing design make them ideal for use in
OEM equipment and control panels.
Solid-state devices such as SCRs and
other electronic equipment generally
require fast-acting protection.
AMPERE RATINGS
1
1
⁄
8
10
⁄
4
2
2
4
5
6
7
8
9
10
12
15
20
25
30
1
2
1
3
3
⁄
⁄
21⁄
2
⁄
10
1
3
⁄
4
11⁄
2
31⁄
2
⁄
10
Example part number (series &
amperage): KLKR 25
44
Class CC Fuses
ꢀ
600 VAC 1/10 – 60 Amperes
For performance data on Littelfuse CCMR series Class CC fuses, see the CCMR pages in the POWR-PRO® section of this catalog.
KLDR
KLKR
1000
800
600
1000
800
600
GENERAL
PURPOSE
FUSES
400
300
400
300
200
200
100
80
100
80
60
60
40
30
40
30
20
20
10
8
10
8
6
6
4
3
4
3
2
2
1
1
.8
.8
.6
.6
.4
.3
.4
.3
.2
.2
.1
.1
.08
.08
.06
.06
.04
.03
.04
.03
.02
.02
.01
.01
CURRENT IN AMPERES
CURRENT IN AMPERES
KLDR
KLKR
1000000
800000
1000000
800000
600000
600000
400000
300000
400000
300000
200000
200000
100000
80000
100000
80000
60000
60000
40000
30000
40000
30000
20000
20000
10000
8000
10000
8000
6000
6000
4000
3000
4000
3000
30A
25A
20A
15A
10A
2000
2000
8A
6A
12A
4A
1000
800
600
1000
800
600
400
300
400
300
200
200
100
100
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
45
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