Jtec489 is UL Listed as a branch circuit breaker and is, therefore, able to be used to protect a branch circuit without a backup device. Many applications and other UL standards insist upon the use of a branch circuit breaker (as opposed to a supplementary protector). If you fit the Jtec489 you’re covered.
Breaker Type: AC Circuit Breaker
Current: 15A
Voltage: 480/277VAC