What kind of switch should you install in a single wire circuit that required the switch to be manually held in the ON position?
发布于 2021-02-18 21:53:33
【单选题】 A Single-pole, single-throw (SPST), two-position normally open (NO). B Single-pole, single-throw (SPST), single-position. C Single-pole, double-throw (SPDT), single-position normally open (NO).
