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
环境温度及电流值折减比率表
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
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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