* Power Fuse(Expulsion Type)

<Electricity>

STATION Type Fuse Ratings

JFM-20

(Indoor Type) JFU-20

1K~200K

 kV Ampere(rms)

Nom. Max. Des. BIL Max. Interrupting

25.8 27 125 200K Sym. Asym.

12,500 20,000

SM-40

(Indoor Type) SMU-40

300E~400E 25 29 150 400E 20,000 32,000

SMD-40

(Outdoor Type) SMU-40

300E~400E 25 29 150 400E 20,000 32,000

DROP-OUT JFD-20

(Indoor Type) JFU-20

15~200K 25.8 27 150 200K 12,500 20,000

Rated Capacity of Transformer

(kVA) Rated Full-load

Current of Transformer

In[A] Magnetizing and

Inrush Current of Transformer [A]

If=10In r.m.s value of symmetrical

Short-circuit current Is=[A]

100In/% Z Fuse

Rating Selection Range 

1? 3? Minimum  maximum 

- 5 0.13 1.3 2.10 1K 3K

- 7.5 0.19 1.9 3.15 1K 3K

- 10 0.25 2.5 4.2 1K 3K

5 15 0.38 3.8 6.3 1K 3K

6.67 20 0.50 5.0 8.4 1K 3K

10 30 0.76 7.6 12.6 1K 3K

15 45 1.13 11.3 18.9 3K 6K

25 75 1.89 18.9 31.5 3K 6K

33 100 2.52 25.2 42.0 3K 6K

50 150 3.78 37.8 63.0 6K 6K

67 200 5.04 50.4 84.0 8K 10K

75 225 5.67 56.7 94.5 8K 10K

100 300 7.56 75.6 126.1 10K 12K

167 500 12.6 126 210.1 15K 20K

250 750 18.9 189 315.1 25K 30K

333 1,000 25.2 252 420.2 30K 40K

500 1,500 37.8 378 630.3 50K 65K

667 2,000 50.4 504 840.4 65K 80K

1,000 3,000 75.6 756 1,260.6 100K 140K

1,333 4,000 100.8 1,008 1,680.8 140K 200K

1,667 5,000 126.0 1,260 2,101.0 200K 300E

2,000 6,000 151.2 1,512 2,521.2 200K 300E

2,500 7,500 189.0 1,890 3,151.5 300E 400E

3,333 10,000 252.0 2,520 4,202.0 300E 400E