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Siemens 3Ty7 561 1L Auxiliary Contact Block BNS 816 X869 B08 00 12 602 11 Reliable Alarm Interface: Designed to control panel applications Dc 4 48 Vdc 41959 Reliable Alarm Interface: Designed to promptly detect and signal fire incidents This block handles the analogue input signals coming from different kinds of sensors and devices for achieving accurate control and monitoring
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