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微信红包群名称大全霸气a relay is an electrically operated switch. many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal.

Good Quality Overload Protector For Refrigerator

Good Quality Overload Protector For Refrigerator

1.electric parameters:ac230v1-50a/110v 1-30a 2.temperature range:30°c-180°c

High Quality Ptc Starter Relay For Refrigerator

High Quality Ptc Starter Relay For Refrigerator

1.electric parameters:ac230v1-50a/110v 1-30a 2.temperature range:30°c-180°c

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