ADM54P/80KA LowVoltage Surge Protective Device Overview The ADM54P/80KA is a 4pole lowvoltage surge protective device designed for DIN rail mounting. It provides transient overvoltage protection for threephase 380V systems (maximum input 385V AC) and integrates earth leakage type protection for comprehensive system coverage. Key benefits Reduces equipment damage and downtime by limiting transient overvoltages before they reach downstream devices. Fourpole design protects all live conductors including neutral, delivering fullsystem coverage for threephase installations. discharge capability handles large surge events with a maximum discharge current of 80 kA and a nominal discharge rating of 40 kA. Low residual voltage protects sensitive electronics with a voltage protection level Up of 2.4 kV. DIN rail form factor enables straightforward installation and retrofit in standard distribution panels. Not a smart device, making it a simple, robust solution for conventional electrical systems. configurations are available to match specific installation requirements. Technical highlights Model: ADM54P/80KA Type: 4P surge protection device, earth leakage type Rated voltage: 380 V Maximum input voltage: 385 V AC Nominal discharge current: 40 kA Maximum discharge current: 80 kA Voltage protection level Up: 2.4 kV Mounting: DIN rail Hazardous chemicals: None reported Smart functionality: No : Yes Practical applications Main distribution boards in commercial buildings where threephase power must be protected from external and internal surge events. Industrial control panels and machinery to limit downtime and reduce the risk of damage to drives, PLCs, and other sensitive equipment. Power systems with backup generators or inverter systems, providing surge protection at the system input or distribution point. Installation and compatibility notes Intended for lowvoltage distribution systems up to 385 V AC and standard DIN rail enclosures. Should be installed in the distribution board close to the service entry or the equipment to be protected for performance. Installation and commissioning should be performed by a qualified electrician to ensure proper coordination with other protective devices and safe operation. This device is suitable where reliable, capacity surge protection is required for threephase lowvoltage electrical installations.