faceplate vs protective cover

faceplate and protective cover both are nouns.

Word	Noun	Adjective	Verb	Adverb
faceplate	Yes	No	No	No
protective cover	Yes	No	No	No

As nouns, protective cover is a hypernym of faceplate; that is, protective cover is a word with a broader meaning than faceplate:

faceplate: a protective covering for the front of a machine or device (as a door lock or computer component)
protective cover: a covering that is intend to protect from damage or injury

Other hypernyms of faceplate include protection, protective covering.

faceplate (noun)	protective cover (noun)
a protective covering for the front of a machine or device (as a door lock or computer component)	a covering that is intend to protect from damage or injury