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1.The power-off relay is responsible for disconnecting the mains when the system is shut down.
断电继电器负责在系统关闭时断开主电源。
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2.The power-off relay is a critical component in the electrical system, ensuring that all devices are safely powered off.
断电继电器是电气系统中的关键组件，确保所有设备安全断电。
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3. During maintenance, the power-off relay must be checked to ensure it functions correctly and does not cause any damage during disconnection.
维护期间，必须检查断电继电器以确保其正确工作，并在断开连接过程中不造成任何损坏。