LR250 데이터 시트보기 (PDF) - Littelfuse, Inc
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LR250 Datasheet PDF : 3 Pages
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LLNRK/LLSRK Series POWR-PRO® Class RK1
250/600 VAC s Dual-Element, Time-Delay s 1/10 – 600 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
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
Peak Let-Thru Current**
for various fuse ratings
60A 100A 200A 400A 600A
1,400
1,900
2,100
2,400
2,600
2,800
2,850
3,000
3,200
3,500
3,900
4,000
4,500
4,800
2,000
2,700
3,100
3,500
3,900
4,000
4,300
4,600
4,800
5,200
5,700
6,000
6,700
7,000
2,700
3,500
4,200
4,600
5,000
5,250
5,500
5,800
6,300
6,700
7,200
8,100
9,100
9,700
4,800 5,000
6,200 8,500
7,000 9,500
8,000 10,800
8,300 11,500
9,000 12,000
9,500 12,500
9,800 13,500
10,200 14,000
11,000 15,000
12,200 16,000
12,700 17,000
14,000 19,000
15,000 20,000
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
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
Peak Let-Thru Current**
for various fuse ratings
60A 100A 200A 400A 600A
1,600 2,100 2,600 4,100 —
2,000 2,800 3,400 5,250 8,000
2,300 3.200 3,900 6,000 9,000
2,600 3,600 4,500 6,700 10,000
2,800 3,800 4,800 7,500 11,000
3,000 4,100 5,200 8,000 12,000
3,100 4,400 5,700 8,500 12,500
3,300 4,600 6,000 9,000 13,000
3,500 4,900 6,500 9,500 14,000
3,800 5,200 7,000 10,000 15,000
4,000 5,700 7,750 11,000 17,000
4,200 6,200 8,500 12,000 18,000
4,600 7,300 10,000 14,000 21,000
4,700 8,000 11,000 16,000 23,000
LLNRK
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
600A
400A
200A
100A
60A
30A
LLSRK
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
600A
400A
200A
100A
60A
30A
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
AVAILABLE FAULT CURRENT
SYMMETRICAL R. M. S. AMPERES
14
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