插件式自恢复保险丝PTC技术支持
“万和”自恢复保险丝（插件式）技术支持
WHPTC Technical Support
符号定义 Definition
|
符号Sign |
说明 |
Definition |
|
Ih |
WHPTC在25℃环境温度下的最大工作电流 |
Hold current-maximum current at which the device will not trip at 25℃ |
|
It |
WHPTC在25℃环境温度下启动保护的最小电流 |
Trip current-minimum current at which the device will always trip at 25℃ |
|
Vmax |
WHPTC的最大工作电压 |
Maximum voltage at which the device will not trip |
|
Vmaxi |
WHPTC在阻断状态下所承受的最大电压 |
Maximum voltage device can withstand without damage at it rated current |
|
Imax |
WHPTC能承受的最大电流 |
Maximum fault current device can withstand without damage at rated voltage |
|
Rmin |
WHPTC工作前的初始最小阻值 |
Minimum device resistance at 25℃ prior to tripping |
|
Rmax |
WHPTC工作前的初始最大阻值 |
Maximum device resistance at 25℃ prior to tripping |
|
Figure |
图示 |
The Figure of WHPTC |
|
Lead |
导线尺寸 |
Lead diameter |
环境温度及电流值折减比率表
Discount rate of ambient temperature and current
|
WH Series |
-20℃ |
0℃ |
25℃ |
30℃ |
40℃ |
50℃ |
60℃ |
70℃ |
85℃ |
|
WH6 |
130% |
115% |
100% |
91% |
83% |
77% |
68% |
61% |
52% |
|
WH16 |
132% |
120% |
100% |
96% |
88% |
80% |
71% |
61% |
47% |
|
WH30 |
130% |
115% |
100% |
91% |
83% |
77% |
68% |
61% |
52% |
|
WH60 |
136% |
119% |
100% |
90% |
81% |
72% |
63% |
54% |
40% |
|
WH130 |
136% |
119% |
100% |
92% |
81% |
72% |
63% |
54% |
40% |
|
WH250 |
132% |
117% |
100% |
91% |
85% |
77% |
68% |
61% |
48% |
|
WH600 |
138% |
119% |
100% |
92% |
83% |
73% |
64% |
55% |
42% |
