该指标通常包括最大载流和最大切换电流。
The specification usually includes both the maximum carry current and the maximum switched current.
如果被切换电流足够高，通道电阻会引起明显的电压降。
The channel resistance may cause a significant voltage drop if the current being switched is high enough.
切换电流是指继电器在开路和闭合触点时能可靠处理的最大电流。
Switched current is the maximum current that can be handled reliably while opening and closing contacts.
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