LLNRK110 [LITTELFUSE]
Electric Fuse, Time Delay Blow, 110A, 250VAC, 125VDC, 200000A (IR), Inline/holder,;
| 型号： | LLNRK110 |
| 厂家： | 
LITTELFUSE |
| 描述： | Electric Fuse, Time Delay Blow, 110A, 250VAC, 125VDC, 200000A (IR), Inline/holder, 电路保护 |
| 文件： | 总3页 (文件大小：188K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LLNRK/LLSRK Series POWR-PRO® Class RK1
ꢀ
ꢀ
250/600 VAC Dual-Element, Time-Delay 1/10 – 600 Amperes
SPECIFICATIONS
Voltage Ratings: AC: 250 Volts (LLNRK)
600 Volts (LLSRK)
DC: 125 Volts (LLNRK)
300 Volts (LLSRK)
Interrupting Ratings:
AC: 200,000 amperes rms symmetrical
300,000 amperes rms symmetrical
(Littelfuse self-certified)
DC: 20,000 amperes
Ampere Range: 1/10 – 600 amperes
Approvals:
AC: Standard 248-12, Class RK1
UL Listed (File No: E81895)
CSA Certified (File No: LR29862)
QPL: Federal Specification No.WF-1814
DC: Littelfuse self-certified
AMPERE RATINGS
1
10
⁄
1
28⁄10
3
61⁄
7
8
9
4
25
30
35
40
45
50
60
70
80
90
300
350
400
450
500
600
15
11⁄
8
100
110
125
150
175
200
225
250
100
⁄
2
11⁄
4
32⁄10
10
⁄
1
*
⁄4
⁄10
⁄10
⁄2
14⁄10
16⁄10
18⁄10
2
31⁄
2
3
4
1
6
4
10
12
15
41⁄
5
2
⁄
⁄10
10
21⁄
21⁄
4
56⁄10
6
171⁄
2
8
2
20
* LLSRK Only.
Example part number (series & amperage): LLNRK 450
RECOMMENDED FUSE BLOCKS
LR250 series (LLNRK Series)
LR600 series (LLSRK Series)
Refer to Fuse Block section of this catalog for additional
information.
FEATURES/BENEFITS
Littelfuse LLNRK and LLSRK series POWR-PRO® fuses
provide superior overload and short circuit protection for
service entrance, main, feeder and general-purpose branch
circuits up to 600 amperes.
ꢀ
Extremely current limiting — Reduces damage to circuits
and equipment under short-circuit conditions. Stops
damaging short circuits faster than any mechanical
protective device.
LLNRK/LLSRK series fuses can be installed in existing Class
H fuse blocks to upgrade systems containing lower interrupt-
ing rating Class H one-time or renewable fuses.
ꢀ
300kA Interrupting Rating — Littelfuse self-certified to
300,000 amperes as standard. Meets future trend towards
higher available short circuit currents.
APPLICATIONS
ꢀ
Reduced costs — Current limiting design often permits
All general-purpose circuits
Motors
use of readily available, less costly equipment. Low
resistance design reduces power consumption and utility
bills.
Transformers
ꢀ
Excellent time delay — True dual-element construction,
Solenoids
with separate non-fatiguing thermally-reversible spring-
loaded thermal overload element, withstands repeated
surges within rated time delay without opening needlessly.
Eliminates needless downtime caused by power surges or
equipment demands.
Fluorescent lighting
All system components with high in-rush currents
12
LLNRK/LLSRK Series POWR-PRO® Class RK1
ꢀ
ꢀ
250/600 VAC Dual-Element, Time-Delay 1/10 – 600 Amperes
A
A
E
F
K
C
G
B
D
F
D
G
B
H
E
J
C
70-600A
FIG. 1
FIG. 2
DIMENSIONS IN INCHES (mm in parentheses)
REFER TO
FIG. NO.
AMPERES
SERIES
A
B
C
D
E
F
G
H
J
K
2
1/2
(12.7)
1/2
(12.7)
9/16
(14.3)
5/64
(2.0)
5/32
(4.0)
3/8
(9.5)
—
—
—
—
—
—
LLNRK
LLSRK
LLNRK
LLSRK
LLNRK
LLSRK
LLNRK
LLSRK
LLNRK
LLSRK
LLNRK
LLSRK
(50.8)
1/10 – 30
35 – 60
1
5
3/4
(19.1)
5/8
(15.9)
13/16
(20.6)
3/32
(2.4)
3/16
(4.8)
5/8
(15.9)
—
—
—
—
—
(127.0)
3
3/4
(19.1)
5/8
(15.9)
13/16
(20.6)
3/32
(2.4)
3/16
(4.8)
5/8
(15.9)
(76.2)
1
2
2
2
2
5-1/2
(139.7)
1
5/8
(15.9)
1-1/16
(27.0)
3/32
(2.4)
1/4
(6.4)
7/8
(22.2)
—
(25.4)
5-7/8
(149.2)
1
1-1/16
(27.0)
1-1/16
(27.0)
1/8
(3.2)
3/4
(19.1)
1-1/4
(31.8)
1/4
(6.4)
9/32
(7.1)
1/2
(12.7)
(25.4)
70 – 100
110 – 200
225 – 400
450 – 600
7-7/8
(200.0)
1-1/4
(31.8)
1-1/16
(27.0)
1-5/16
(33.3)
1/8
(3.2)
3/4
(19.1)
1-1/2
(38.1)
1/4
(6.4)
9/32
(7.1)
1/2
(12.7)
7-1/8
(181.0)
1-1/2
(38.1)
1-15/32
(37.3)
1-19/32
(40.5)
3/16
(4.8)
1-1/8
(28.6)
1-27/32
(46.8)
7/16
(11.1)
9/32
(7.1)
11/16
(17.5)
9-5/8
(244.5)
1-3/4
(44.5)
1-15/32
(37.3)
1-27/32
(46.8)
3/16
(4.8)
1-1/8
(28.6)
2-3/32
(53.2)
7/16
(11.1)
9/32
(7.1)
11/16
(17.5)
8-5/8
(219.1)
2
1-15/16
(49.2)
2-3/32
(53.2)
1/4
(6.4)
1-5/8
(41.3)
2-11/32
(59.5)
5/8
(15.9)
13/32
(10.3)
15/16
(23.8)
(50.8)
11-5/8
(295.3)
2-1/2
(63.5)
2
2-19/32
(65.9)
1/4
(6.4)
1-5/8
(41.3)
2-27/32
(72.2)
5/8
(15.9)
13/32
(10.3)
15/16
(23.8)
(50.8)
10-3/8
(263.5)
2-1/2
(63.5)
2-3/8
(60.3)
2-19/32
(65.9)
1/4
(6.4)
2
2-27/32
(72.2)
3/4
(19.1)
17/32
(13.5)
1-1/8
(28.6)
(50.8)
13-3/8
(339.7)
3
2-13/32
(61.1)
3-3/32
(78.6)
1/4
(6.4)
2
3-11/32
(84.93)
3/4
(19.1)
17/32
(13.5)
1-1/8
(28.6)
(76.2)
(50.8)
LLSRK
LLNRK
1000
800
600
1000
800
600
400
300
400
300
200
200
100
80
60
100
80
60
40
30
40
30
20
20
10
8
6
10
8
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
13
LLNRK/LLSRK Series POWR-PRO® Class RK1
ꢀ
ꢀ
250/600 VAC Dual-Element, Time-Delay 1/10 – 600 Amperes
Current-Limiting Effects
Current-Limiting Effects
of LLNRK (250V) fuses
of LLSRK (600V) fuses
* Prospective RMS Symmetrical Amperes Short-Circuit Current
** Apparent RMS Symmetrical
* Prospective RMS Symmetrical Amperes Short-Circuit Current
** Apparent RMS Symmetrical
Note: Data derived from Peak Let-Thru Curves
Note: Data derived from Peak Let-Thru Curves
Short
Circuit
Current*
Short
Circuit
Current*
Peak Let-Thru Current**
for various fuse ratings
60A 100A 200A 400A 600A
Peak Let-Thru Current**
for various fuse ratings
60A 100A 200A 400A 600A
30A
30A
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
900
1,400 2,000 2,700 4,800 5,000
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
1,060 1,600 2,100 2,600 4,100
—
1,100 1,900 2,700 3,500 6,200 8,500
1,250 2,100 3,100 4,200 7,000 9,500
1,400 2,400 3,500 4,600 8,000 10,800
1,500 2,600 3,900 5,000 8,300 11,500
1,600 2,800 4,000 5,250 9,000 12,000
1,700 2,850 4,300 5,500 9,500 12,500
1,800 3,000 4,600 5,800 9,800 13,500
1,900 3,200 4,800 6,300 10,200 14,000
2,000 3,500 5,200 6,700 11,000 15,000
2,200 3,900 5,700 7,200 12,200 16,000
1,350 2,000 2,800 3,400 5,250 8,000
1,600 2,300 3.200 3,900 6,000 9,000
1,700 2,600 3,600 4,500 6,700 10,000
1,900 2,800 3,800 4,800 7,500 11,000
2,000 3,000 4,100 5,200 8,000 12,000
2,100 3,100 4,400 5,700 8,500 12,500
2,200 3,300 4,600 6,000 9,000 13,000
2,400 3,500 4,900 6,500 9,500 14,000
2,500 3,800 5,200 7,000 10,000 15,000
2,700 4,000 5,700 7,750 11,000 17,000
100,000 2,300 4,000 6,000 8,100 12,700 17,000
150,000 2,500 4,500 6,700 9,100 14,000 19,000
200,000 2,600 4,800 7,000 9,700 15,000 20,000
100,000 2,900 4,200 6,200 8,500 12,000 18,000
150,000 3,200 4,600 7,300 10,000 14,000 21,000
200,000 3,300 4,700 8,000 11,000 16,000 23,000
LLSRK
LLNRK
1000000
800000
600000
1000000
800000
600000
400000
300000
400000
300000
200000
200000
100000
80000
60000
100000
80000
60000
40000
30000
20000
600A
400A
200A
100A
600A
400A
40000
30000
200A
20000
100A
60A
60A
10000
10000
8000
6000
8000
30A
30A
6000
4000
3000
4000
3000
2000
2000
1000
800
600
1000
800
600
400
300
400
300
200
200
100
100
AVAILABLE FAULT CURRENT
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
SYMMETRICAL R. M. S. AMPERES
14
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