应用范围：
产品专为程控交换机、配线架设计生产的过保护器件，同时还可用于变压器、安防设备、灯具、镇流器、仪表、电话线路等领域。
产品图片
电器特征与产品尺寸
|
Model |
Ih |
It |
Vmax |
Imax |
Rmin |
Rmax |
Product Dimension(mm)大产品尺寸 |
|||||
|
型号 |
A |
A |
V |
A |
Ω |
Ω |
Style |
A |
B |
C |
D |
Lead |
|
WH250-030 |
0.03 |
0.06 |
250 |
1 |
35 |
90 |
F2 |
6.0 |
8.0 |
5.1 |
4.6 |
0.5 |
|
WH250-040 |
0.04 |
0.08 |
250 |
1 |
27 |
65 |
F2 |
6.0 |
8.0 |
5.1 |
4.6 |
0.5 |
|
WH250-050 |
0.05 |
0.10 |
250 |
1 |
20 |
45 |
F2 |
6.0 |
8.0 |
5.1 |
4.6 |
0.5 |
|
WH250-060 |
0.06 |
0.12 |
250 |
3 |
20 |
45 |
F2 |
6.5 |
9.0 |
5.1 |
4.6 |
0.6 |
|
WH250-080 |
0.08 |
0.16 |
250 |
3 |
10 |
22 |
F2 |
6.5 |
9.0 |
5.1 |
4.6 |
0.5 |
|
WH250-090 |
0.09 |
0.18 |
250 |
3 |
7.0 |
17.5 |
F2 |
6.5 |
9.0 |
5.1 |
4.6 |
0.5 |
|
WH250-110 |
0.11 |
0.22 |
250 |
3 |
6.0 |
12.0 |
F1 |
7.0 |
9.5 |
5.1 |
4.6 |
0.6 |
|
WH250-120 |
0.12 |
0.24 |
250 |
3 |
6.5 |
10.5 |
F1 |
7.0 |
9.5 |
5.1 |
4.6 |
0.6 |
|
WH250-145 |
0.145 |
0.29 |
250 |
3 |
3.5 |
6.5 |
F1 |
7.0 |
9.5 |
5.1 |
4.6 |
0.6 |
|
WH250-180 |
0.18 |
0.54 |
250 |
10 |
1.35 |
3.0 |
F2 |
10.5 |
13.5 |
5.1 |
4.6 |
0.6 |
|
WH250-200 |
0.20 |
0.40 |
250 |
10 |
3.0 |
6.0 |
F2 |
10.5 |
13.5 |
5.1 |
4.6 |
0.6 |
|
WH250-400 |
0.40 |
0.80 |
250 |
10 |
1.35 |
3.0 |
F1 |
12.2 |
14.2 |
5.1 |
4.6 |
0.8 |
|
WH250-600 |
0.60 |
1.20 |
250 |
10 |
1.0 |
2.0 |
F1 |
12.6 |
15.6 |
5.1 |
4.6 |
0.8 |
|
WH250-800 |
0.80 |
1.60 |
250 |
10 |
0.5 |
1.0 |
F1 |
15.0 |
19.5 |
5.1 |
4.6 |
0.8 |
|
WH250-1000 |
1.00 |
2.00 |
250 |
10 |
0.4 |
0.8 |
F2 |
21.1 |
23.6 |
10.2 |
4.6 |
0.8 |
|
WH250-1500 |
1.50 |
3.00 |
250 |
10 |
0.3 |
0.6 |
F1 |
21.0 |
27.5 |
10.2 |
4.6 |
0.8 |
|
WH250-2000 |
2.00 |
4.00 |
250 |
10 |
0.2 |
0.4 |
F1 |
26.2 |
32.8 |
10.2 |
4.6 |
0.8 |
符号定义 Definition
| 符号Sign | 说明 | Definition |
| Ih | 在25℃环境温度下的大 工作电流 | Hold current-maximum current at which the device will not trip at 25℃ |
| It | 在25℃环境温度下启动保护的小电流 | Trip current-minimum current at which the device will always trip at 25℃ |
| Vmax | 大工作电压 | Maximum voltage at which the device will not trip |
| Vmaxi | 在阻断状态下所承受的大电压 | Maximum voltage device can withstand without damage at it rated current |
| Imax | 能承受的大电流 | Maximum fault current device can withstand without damage at rated voltage |
| Rmin | 工作前的初始小阻值 | Minimum device resistance at 25℃ prior to tripping |
| Rmax | 工作前的初始大阻值 | 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% |
WH250 系列25℃时典型动作时间曲线 WH250 Typical Time to Trip at 25℃
A:WH250-080
B:WH250-090
C:WH250-110
D:WH250-120
E:WH250-145
F:WH250-180
G:WH250-200
H:WH250-400
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