power-fuseSMD® Power Fuses

Features

SMD Power Fuses are offered with maximum continuous current ratings through 300E amperes, in a variety of fault-interrupting ratings. They’re available in a wide range of ampere ratings, in three different speeds: S&C Standard, Slow, and Very Slow. So they can be readily coordinated with protective relays, circuit reclosers, and other fuses. This broad selection of ampere ratings and speeds permits close fusing to achieve maximum protection and optimum coordination.

Ratings

Fuse Type kV Amperes, RMS, Symmetrical
Nominal Maximum BIL Maximum Interrupting
60 Hz 50 Hz
SMD-50 34.5
46
69
38
48.3
72.5
200
250
350
100E
100E
100E
6 700
5 000
3 350
6 700
5 000
3 350
SMD-1A 34.5
46
69
38
48.3
72.5
200
250
350
200E
200E
200E
17 500
13 100
8 750
17 500
13 100
8 750
SMD-2C 34.5
46
38
48.3
200
250
300E
300E
33 500
31 500
33 500
31 500
SMD-2B 69
115
138
72.5
121
145
350
550
650 & 750
300E
250E
250E
17 500
10 500
8 750
17 500
10 500
8 750
SMD-3 69 72.5 350 300E 25 000 25 000
Style

Vertical 45° Opening Mounting
vertical45115-kV SMD-2B Power Fuse shown.

Vertical-Offset Mounting
verticaloffset 69-kV SMD-2B Power Fuse shown.

Upright Mounting
upright

34.5-kV SMD-1A Power Fuse shown.

Right-Angle Mounting
rightangle34.5-kV SMD-1A Power Fuse shown.

Inverted Mounting
inverted34.5-kV SMD-1A Power Fuse shown.

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