overcurrent blocking device

例句：

1. 1. The overcurrent blocking device is essential for the safety of the electrical system.
   过电流保护装置对于电气系统的安全至关重要。
2. 2. The engineer designed an overcurrent blocking device to prevent power failures during storms.
   工程师设计了一种过电流保护装置，以防止暴风雨期间的电力故障。
3. 3.The overcurrent blocking device was activated automatically when the circuit exceeded its maximum current capacity.
   当电路超过其最大电流容量时，过电流保护装置自动启动。