ABB 1SVR750488R8300 Soft Starter For AC Motors

ABB 1SVR750488R8300 is a CM-MPN.62S three-phase voltage monitoring relay designed to supervise three-phase power (L1, L2, L3) and drive protective outputs when a fault is detected. It accepts line voltages in the range of 450 to 720 VAC across all three phases and provides two Form C (changeover) contacts for signaling or interlock purposes. An adjustable response delay, from 0.1 to 30 seconds, lets you filter transient disturbances and avoid nuisance trips in motor circuits, pumps, or fans. As part of ABB’s CM-MPN family, this relay is typically used in electrical distribution panels to verify presence and balance of three-phase supply, detect phase loss or phase sequence faults, and interface with PLCs or motor controllers to initiate alarms or protective actions. The 1SVR750488R8300 is widely cataloged by distributors under the CM-MPN.62S designation, with listings confirming its three-phase voltage monitoring role and two changeover outputs, making it suitable for integration into control schemes where reliable phase monitoring is essential for safe and uninterrupted operation of industrial equipment.