Can i use a 20A-250V single outlet with 10-2 wire and 30A double pole breaker?

Using a 20A-250V single outlet with 10-2 wire and a 30A double pole breaker is not recommended. The outlet is rated for 20 amps, which means it can only handle that maximum current safely; using a breaker rated for 30 amps could allow excessive current to flow before the breaker trips, posing a fire risk. It's important to match the breaker size to the outlet's rating to ensure safe operation. Always consult a qualified electrician for electrical work to ensure compliance with local codes and safety standards.