How Do Shunt Trip Breakers Work? - Reference.com
In a shunt trip breaker, the magnet is also wired to an external system, which can send an electrical signal that will also activate the magnet and trip the switch. After the switch has been tripped, it must be manually reset. Circuit breakers are tripped by current and not voltage, but they are usually specified with a maximum voltage.
DA: 32 PA: 21 MOZ Rank: 76