Question: are all double pole breakers 240v?
Answer: There are two types of standard breakers: single-pole and double-pole. Single-pole breakers are rated for 120 volts and 15 or 20 amps. ... Double-pole breakers, on the other hand, are typically rated for 20 to 60 amps and supply 240-volt power to large appliances, like electric dryers and ranges.