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本产品适用场合： 应用于燃气报警控制系统，可作为报警系统的备电或主电使用，为报警控制系统以及负载设备供电。 采用220V交流电源作为主电，内置24V/7Ah密封铅电池作为备电，主备电无间隙智能切换，具有完善的保护措施和状态指示功能，满足控制系统的安全要求。