| Product name: | ZKTD-400/1140型陶瓷真空开关管 | ||||||
| specification: | ![]() |
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| Category: | spare parts and accessories -- 陶瓷真空灭弧室 | ||||||
| Price: | factory price | ||||||
| Brand: | Shanghai | ||||||
| Place of Origin: | China | ||||||
| Available Quantity: | batch | ||||||
| delivery cycle: | Spot goods (or inquire by telephone) | ||||||
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额定工作电压1140V; |
额定工作电流400A; | 额定短路开断电流8KA |
| 额定短路开断次数16次; | 额定电流开断次数3000次; | 机械寿命2万次; |
| 额定短时耐受电流8KA; | 额定短时耐受时间4S; | 额定工频耐受电压10KV |
| 触头额定开距4±0.4mm; | 触头自闭力115±11N; | |
| 触头额定开距时的反力140±14N; | ||
| 触头自闭力下的接触电阻≤100μΩ; | ||
| 配用断路器ZN7--400型。 |
外形尺寸及安装尺寸