High Magentic Circuit breakers are designed and programmed to have a higher magnetic trip point than a standard breaker. This can be used in applications where high levels of magnetism may be an issue such as large scale lighting projects. The THQL1120HM breaker features high magnetic trip settings, 1 pole, an ampere rating of 20A, an interrupting rating of 10kAIC, and a voltage rating of 120/240V.