rated voltage vs potential

rated voltage and potential both are nouns.

Word	Noun	Adjective	Verb	Adverb
rated voltage	Yes	No	No	No
potential	Yes	Yes	No	No

As nouns, potential is a hypernym of rated voltage; that is, potential is a word with a broader meaning than rated voltage:

rated voltage: the maximum voltage that the circuit-breaker can interrupt safely and without being damaged by excessive arcing.
potential: the difference in electrical charge between two points in a circuit expressed in volts

Other hypernyms of rated voltage include electric potential, potential difference, potential drop, voltage.

rated voltage (noun)	potential (noun)
the maximum voltage that the circuit-breaker can interrupt safely and without being damaged by excessive arcing.	the difference in electrical charge between two points in a circuit expressed in volts
	the inherent capacity for coming into being

rated voltage (adjective)	potential (adjective)
	existing in possibility
	expected to become or be; in prospect