© JUNE 2011 Littelfuse POWR-GARD Products

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3

Electrical Specification – Agency Requirements

ORDERINg

NUmBER.

AmPERAgE

OPENINg TImE (mINUTES)

100% of Amp Rating

per Ul

113% of Amp Rating

per IEC

135% of Amp Rating

per Ul

145% of Amp Rating

per IEC

200% of Amp Rating

per Ul

SPFJ125.X

125

Temperature

Stabilization

120 Min

120 Max

120 Max

10 Max

SPFJ160.X

160

180 Min

180 Max

SPFJ200.X

200

SPFJ250.X

250

12 Max

SPFJ300.X

300

SPFJ350.X

350

SPFJ400.X

400

SPFJ450.X

450

240 Min

240 Max

14 Max

Temperature Rerating Curve

AMBIENT TEMPERATURE

60

40

20

0

0

20

40

60

-60˚ C -40˚ C

-20˚ C

0˚ C

20˚ C

40˚ C

60˚ C

80˚ C

100˚ C

120˚ C

140˚ C

-76˚ F

-40˚ F

-4˚ F

-32˚ F

68˚ F

104˚ F

140˚ F

176˚ F

212˚ F

248˚ F

284˚ F

SPFJ SERIES FUSE