一些基本特点：    负载能力：30A功率继电器可以支持最大30安培的电流，适用于较大功率的设备。    工作原理：继电器是利用电磁铁控制开关的设备。当电流通过继电器的线圈时，会产生磁场，吸引动触点，将电路连接或断开。    类型：常见的30A功率继电器有机械式继电器和固态继电器两种。机械式继电器通过机械触点切换电···

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