short-contact switch

例句：

1. 1. The circuit breaker is designed to protect the electrical system from overloads.
   断路器的设计是为了保护电气系统免受过载。
2. 2. During a power outage, the short-contact switch helps to maintain safety by preventing dangerous situations.
   在停电期间，短接触开关通过防止危险情况的发生来维护安全。
3. 3.The technician had to replace the short-contact switch after the faulty one failed.
   技术人员在故障的开关失败后不得不更换它。