SM, SML power fuse
高壓電力熔絲
S&C SM, SML電力熔絲用於二次變電所之變壓器、配電系統電纜、配電系統開關箱之保護，熔絲單元擁有無損壞性，能承受變壓器激磁電流與負載的暫態突波所造成的熱能，時間電流曲線永久精準，不須維護且操作速度較斷路器快，能在精確的協調情況下提供更好的系統保護。
產品規格
S&C SM & SML Power Fuses - For indoor distribution
| Fuse Type | KV | Amperes, RMS, Symmetrical | ||||
| Nom. | Max | BIL | Max | Interrupting | ||
| 60Hz | 50Hz | |||||
| SM-20 | 13.8 25 34.5 |
17 27 38 |
95 125 150 |
200E or 200K 200E or 200K 200E or 200K |
14 000 12 500 8 450 |
11 200 10 000 6 760 |
| SM-40 | 4.8 13.8 25 |
5.5 17 29 |
60 95 150 |
400E 400E 400E |
25 000 25 000 20 000 |
20 000 20 000 16 000 |
| SM-4z | 4.8 13.8 25 34.5 |
5.5 17 27 38 |
60 95 150 200 |
200E 200E 200E 200E |
17 200 12 500 9 400 6 250 |
13 760 10 000 7 520 5 000 |
| SM-5S | 4.8 13.8 24 34.5 |
5.5 17 27 38 |
60 95 150 200 |
400E or 720E 400E or 720E 300E 300E |
27 000 25 000 20 000 17 500 |
27 000 25 000 20 000 17 500 |
| SM-5SS | 13.8 | 15.5 | 95 | 400E | 34 000 | 25 000 |
SML Power Fuses are available in the following ratings:
| Fuse Type | KV | Amperes, RMS, Symmetrical | |||||||
| Nom. | Max | BIL | Max | Live- Switching |
Interrupting | Fault-Closing, Asym. |
|||
| 60Hz | 50Hz | One- Time |
Two- Time |
||||||
| SML-20 | 13.8 25 |
17 27 |
95 125 |
200E or 200K 200E or 200K |
200 200 |
14 000 12 500 |
11 200 10 000 |
22 400 20 000 |
13 000 13 000 |
| SML-40 | 13.8 25 |
17 27 |
95 125 |
200E 200E |
200 200 |
12 500 9 400 |
10 000 7 520 |
20 000 15 000 |
13 000 13 000 |
