计时开关 meaning in Chinese

counter switch
time switch
timing switch

Automatic electrical controls for household and similar use . part 2 : particular requirements for timers and time switches
家用和类似用途的自动电控设备.第2部分:计时器和计时开关的特殊要求
Automatic electrical controls for household and similar use - part 2 : particular requirements for timers and time switches
家用和类似用途的自动电控制装置.第2部分:计时器和计时开关的特殊要求
Automatic electrical controls for household and similar use - part 2 - 7 : particular requirements for timers and time switches
家用和类似用途的自动电气控制装置.第2 - 7部分:计时器和计时开关的特殊要求