
14
LLNRK/LLSRK Series POWR-PRO
Class RK1
250/600 VAC
I
Dual-Element, Time-Delay
I
1/10
–
600 Amperes
Current-Limiting Effects
of LLSRK (600V) fuses
* Prospective RMS Symmetrical Amperes Short-Circuit Current
** Apparent RMS Symmetrical
Note: Data derived from Peak Let-Thru Curves
Short
Circuit
Current*
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
Peak Let-Thru Current**
for various fuse ratings
60A
100A
1,600 2,100 2,600
2,000 2,800 3,400
2,300 3.200 3,900
2,600 3,600 4,500
2,800 3,800 4,800
3,000 4,100 5,200
3,100 4,400 5,700
3,300 4,600 6,000
3,500 4,900 6,500
3,800 5,200 7,000
4,000 5,700 7,750
4,200 6,200 8,500
4,600 7,300 10,000 14,000 21,000
4,700 8,000 11,000 16,000 23,000
30A
1,060
1,350
1,600
1,700
1,900
2,000
2,100
2,200
2,400
2,500
2,700
2,900
3,200
3,300
200A
400A
4,100
5,250
6,000
6,700
7,500
8,000
8,500
9,000
9,500
10,000 15,000
11,000 17,000
12,000 18,000
600A
—
8,000
9,000
10,000
11,000
12,000
12,500
13,000
14,000
2
3
4
6
8
1
2
3
4
6
8
1
2
1
2
3
4
6
8
1
100
200
300
400
600
1800
2000
3000
4000
6000
18000
20000
30000
40000
60000
180000
200000
300000
400000
600000
1800000
600A
400A
200A
100A
60A
30A
P
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
2
3
4
6
8
1
2
3
4
6
8
1
2
1
2
3
4
6
8
1
100
200
300
400
600
1800
2000
3000
4000
6000
18000
20000
30000
40000
60000
180000
200000
300000
400000
600000
1800000
600A
400A
200A
100A
60A
30A
P
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
Current-Limiting Effects
of LLNRK (250V) fuses
* Prospective RMS Symmetrical Amperes Short-Circuit Current
** Apparent RMS Symmetrical
Note: Data derived from Peak Let-Thru Curves
Short
Circuit
Current*
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
Peak Let-Thru Current**
for various fuse ratings
60A
100A
1,400 2,000 2,700
1,900 2,700 3,500
2,100 3,100 4,200
2,400 3,500 4,600
2,600 3,900 5,000
2,800 4,000 5,250
2,850 4,300 5,500
3,000 4,600 5,800
3,200 4,800 6,300
3,500 5,200 6,700
3,900 5,700 7,200
4,000 6,000 8,100
4,500 6,700 9,100
4,800 7,000 9,700
30A
900
1,100
1,250
1,400
1,500
1,600
1,700
1,800
1,900
2,000
2,200
2,300
2,500
2,600
200A
400A
4,800
6,200
7,000
8,000
8,300
9,000
9,500
9,800
10,200 14,000
11,000 15,000
12,200 16,000
12,700 17,000
14,000 19,000
15,000 20,000
600A
5,000
8,500
9,500
10,800
11,500
12,000
12,500
13,500
LLNRK
LLSRK