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Question:

Relay on the MC, NO there COM mean what?

Relay on the MC, NO there COM mean what?

Answer:

These are abbreviations: NC - Normal Connected, refers to the state of the normally closed (contact), normal (without power)
May 9, 2017
NO - Normal Open, that is often open (contact), normal (no power) when the state
May 9, 2017
COM - Common, refers to the common, according to whether the power, can be with the NC side or NO side contact
May 9, 2017

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