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Bussmann

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Time-Current & Current Limitation Curves<br />

LPJ (600V), Class J Fuses<br />

<strong>Bussmann</strong> ®<br />

Time-Current Characteristic Curves—<br />

Average Melt<br />

Current Limitation Curves<br />

300<br />

100<br />

10<br />

TIME IN SECONDS<br />

1<br />

.1<br />

1A<br />

3A<br />

5A<br />

10A<br />

15A<br />

20A<br />

30A<br />

40A<br />

50A<br />

60A<br />

100A<br />

125A<br />

200A<br />

225A<br />

400A<br />

600A<br />

AMPERE<br />

RATING<br />

LPJ<br />

INSTANTANEOUS PEAK LET-THRU CURRENT IN AMPS<br />

100,000<br />

10,000<br />

1,000<br />

A<br />

100<br />

100<br />

LPJ<br />

1,000<br />

10,000<br />

B<br />

100,000<br />

200,000<br />

600A<br />

400A<br />

200A<br />

100A<br />

60A<br />

50A<br />

40A<br />

30A<br />

20A<br />

15A<br />

AMPERE<br />

RATING<br />

PROSPECTIVE SHORT-CIRCUIT CURRENT<br />

SYMMETRICAL RMS AMPS<br />

.01<br />

1<br />

10<br />

100<br />

1,000<br />

RMS SYMMETRICAL CURRENT IN AMPERES<br />

10,000<br />

227

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