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Changeover switch for automatic changeover of emergency lights from emergency to mains operation
Changeover switch for automatic changeover of emergency lights from emergency to mains operation
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机译:转换开关,用于将应急灯从紧急状态自动转换为市电状态
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摘要
The switch-over network provides automatic switching over emergency lamps from emergency operation to network operation, with a safety relay (S3) included for fail-safe separation of the network and emergency current supplies.
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