The 1SVR730750R0400 is a multifunctional three-phase monitoring relay from the CM range, designed to monitor and protect equipment from unstable supply voltages. This device monitors for phase sequence, phase loss, as well as over- and undervoltage conditions. It is housed in a compact 22.5 mm wide enclosure and features front-face operating controls with a direct reading scale for adjusting threshold values. LEDs provide clear status indication for simplified commissioning and troubleshooting. Common applications include the protection of motors against damage from unbalanced phases, monitoring mobile three-phase equipment, and safeguarding machines and installations by ensuring supply voltage stability.