The 1487448 is a 3-phase voltage monitoring relay designed for industrial applications. It features an RS-485 interface for communication and monitors voltages in the range of 160 to 690 V AC. The relay provides comprehensive protection functions, including overvoltage, undervoltage, window monitoring, and phase sequence detection. It is equipped with a 1-pole double-throw (1PDT) dry contact output with plug-in connection, suitable for integration into control systems. Additionally, it supports configurable safety functions up to SIL 3, Category 4, and Performance Level e, with options for single- or dual-channel operation, automatic or manual start, and monitored start conditions. The device is mounted on a DIN rail for easy installation.
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