Fixed Type 2 Surge Protective Device model 40 3P+N Protects three phase plus neutral electrical installations from transient overvoltages caused by indirect lightning strikes and switching events. Designed for fixed installation at the distribution level to help preserve connected equipment and reduce service interruptions. Key benefits Protects equipment and systems by diverting transient overvoltages away from sensitive devices Reduces the risk of downtime and equipment damage from surges Fits common three phase plus neutral distribution systems without modifying system topology Simple to integrate into existing electrical panels for immediate surge protection What it does Type 2 surge protection for use at distribution boards and subpanels Fixed design with model identification 40 3P+N indicating three pole plus neutral configuration Acts on transient overvoltages from indirect lightning and switching to help limit peak voltage reaching downstream equipment Compatibility and application Suited for low voltage three phase systems with neutral Intended for installation at electrical distribution boards, subpanels, and power distribution points Compatible with a wide range of commercial, industrial, and residential three phase systems when installed according to local wiring regulations Form factor and installation Fixed unit intended for permanent installation within the distribution enclosure Space efficient profile suitable for panel mounting Wiring and connection require a qualified electrician in accordance with local codes Performance and reliability Designed to operate as a Type 2 device at the distribution level to manage transient overvoltages Provides ongoing protection for downstream equipment when installed correctly Simple status indication and serviceability features are recommended for routine visual checks; follow installer guidance for maintenance Typical use scenarios Commercial building main distribution board to protect lighting control, HVAC controls, and general power circuits from surges Industrial control panels and motor control centers to protect drives, PLCs, and control electronics from switching transients Data center peripheral power distribution or server room subpanels to help protect UPS inputs, power distribution units, and sensitive IT equipment Installation and maintenance notes Install in accordance with national and local electrical standards and practices Ensure correct connection to phase and neutral conductors and appropriate upstream overcurrent protection Periodic inspection by qualified personnel is recommended to confirm operational status and the device if end of life indicators are reached Model identification Fixed Type 2 surge protective device model 40 3P+N for three phase plus neutral systems For safe and reliable protection, have installation and maintenance performed by a qualified electrician or installer familiar with surge protection devices and local wiring regulations.