Utilizing only one pole of a standard 240-volt double-pole breaker to power a 120-volt circuit is generally not permitted by standard electrical practices and code guidelines unless the specific breaker is explicitly rated and listed as a common-trip independent feed or specialized multi-wire branch circuit configuration. Doing so improperly isolates loads, creates confusion during maintenance shutoffs, and can violate multi-wire branch circuit balancing rules under the National Electrical Code.
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