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參數(shù)資料
| 型號(hào)： | 6.6URD31D08A0550 |
| 廠商： | MERSEN |
| 元件分類： | 保險(xiǎn)絲 |
| 英文描述： | VERY FAST BLOW ELECTRIC FUSE, 550A, 660VAC, 200000A (IR), INLINE/HOLDER |
| 文件頁(yè)數(shù)： | 4/13頁(yè) |
| 文件大小： | 1081K |
| 代理商： | 6.6URD31D08A0550 |
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D 76
PSC
690/700 Volt 2X32 SEMICONDUCTOR PROTECTION FUSES
Below, right: Curves indicating for each rated
current the peak value Ic that the current may
reach as function of the prospective fault
current Ip.
Time-current characteristics
Above, left: Curves idicating pre-arcing time for each rated
current as a function of RMS value of pre-arcing current I.
- Tolerances on this current
8%.
- Beyond 30 sec or 10 sec, small overloads must be eliminated
by another device
- Curve CC’ represents the maximum times taken by the
associated device to clear small overloads; only its horizontal line
is represented. Its oblique line must be plotted according to
sketch, top right corner.
- The intersection of the fuse and CC’ curves indicates the
minimum breaking current Ipm of the fuse.
-
+
Maximum values of total operating I
2t
and total operating times
Left: Horizontal curves indicating the maximum values of total
operating I2t (I2tt) as function of the prospective current Ip at 660
V, cos w = 0.15.
The vertical lines indicate the corresponding total operating time
Tt, with pre-arching time in brackets.
Melting Time Current Data 2X32
Peak let-thru Data 2X32
Clearing I
2t Data 2X32
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