250SF/250SFK, 500SF/500SFKBack to products

FEATURES

●It is realized current blocking capacity of 10kA at 500V which size is as same as a glass tube fuses of φ6㎜
●Space saving can be realized.

RATING

250SF / SFK

Rated voltage and blocking capacity 250V AC–10kA,
250V DC (L/R = 10ms)–10kA
Minimum block-off current 250V AC/DC–
4 times the rated amperage
Maximum arc voltage 500V

500SF / SFK

Rated voltage and blocking capacity 500V AC–10kA,
500V DC (L/R = 2ms)–10kA
Minimum block-off current 500V AC/DC–
4 times the rated amperage
Maximum arc voltage 1000V

UL/cUL standard approved rating

Rated voltage and blocking capacity Same as the standard rating.

(250SF is not cUL approved)

  • 250SF/500SF
  • 250SFK/500SFK

CCC standard approved rating

When applying the standard to UL standard approved items, use the fuse in the following rating.
※The CCC standard is an option. Enter “TC” at the end of product name when ordering.
(e.g. 500SF-10ULTC)

Rated voltage and breaking capacity 500V AC–50kA,
500V DC (L/R = 10ms)–50kA

(250SF/SFK are not CCC approved.)

※Read “FOR SAFE USE” and “PROTECT FUSE USER’S GUIDE” at the back of this catalog before use.

※A small fuse may generate a relatively large amount of heat, so a fuse with sufficient capacity is recommended for long, continuous use.

Voltage Electric Current Cylinder Size(Estimated)
250V 10~25A φ6×31
Installation Method RoHS Order Standard Approved
Clipped / Board soldered

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