Surge Protective Device 20kA 385V 3P+N ThreePhase Protection for Distribution Board

Surge Protective Device Model NXUG 20kA 385V 3P+N Product overview The NXUG 20kA 385V 3P+N is a surge protective device designed for threephase fourwire electrical systems. It provides targeted protection against transient overvoltages by diverting surge current away from connected equipment, helping to reduce the risk of damage and unplanned downtime. Key benefits surge handling capacity: 20kA nominal discharge capability for effective mitigation of large transient events. Designed for threephase systems: 3P plus neutral configuration matches common threephase fourwire installations. Appropriate voltage rating: 385V maximum continuous operating voltage suitable for typical commercial and industrial distribution networks. Protects downstream equipment: helps prevent damage to sensitive electronics, control gear, and power supplies caused by voltage spikes. Clear specification for system planning: model and ratings make it straightforward to select for panellevel protection. Main attributes Function: Surge protection for transient overvoltage events on threephase plus neutral circuits. Configuration: 3P plus neutral to cover all phases and the neutral conductor in a 4wire system. Rating: 20kA surge current rating and 385V nominal maximum continuous operating voltage. Compatibility: Intended for use with threephase distribution boards, motor control centers, and equipment rated for up to 385V line to line or line to neutral as applicable. Performance focus: Designed to limit surge stress on electrical and electronic loads, improving system reliability. Practical applications Incoming distribution board protection in commercial buildings to safeguard lighting, HVAC, and IT equipment. Industrial plant installations protecting motors, drives, and control cabinets on threephase supply lines. Renewable energy and inverter systems where threephase surge protection is required at the point of connection. Installation and selection notes Select the NXUG 20kA 385V 3P+N when your system requires a threephase plus neutral surge protective device with a 20kA surge handling rating and a 385V voltage class. Coordinate with upstream and downstream protective devices and wiring practices to ensure effective overall protection. This description reflects the model NXUG 20kA 385V 3P+N and its intended function as a surge protective device for threephase fourwire electrical systems.