2P Single-Phase AC Surge Protective Device (SPD)

Our 2P single-phase AC SPD is engineered to intercept and discharge transient overvoltages that threaten single-phase power systems, such as those caused by lightning strikes or grid switching operations. Built with advanced chip manufacturing technology, it delivers robust surge current handling and precise voltage clamping, limiting residual voltage (Up) to ≤1.8kV to protect downstream devices.

Available in multiple specifications (e.g., 20kA/40kA), this SPD is compatible with 385V AC systems and features a DIN-rail mount design for quick installation in distribution boxes. Its flame-retardant housing enhances safety under extreme conditions, while the built-in status indicator (green for normal, red for fault) allows real-time monitoring of operational health. As a key component of a multi-level lightning protection system, it acts as the secondary defense layer, effectively mitigating residual surge energy after primary protection and ensuring the stable operation of connected electrical and electronic equipment.

Key Features

· Advanced Chip Manufacturing: Utilizes high-performance chip technology for reliable surge current discharge and stable voltage clamping performance.

· Strong Surge Bearing Capacity: Supports nominal discharge currents (In) up to 20kA and maximum surge currents (Imax) up to 40kA, capable of withstanding repeated lightning impacts.

· Flame-Retardant Housing: Made of high-strength flame-retardant material, meeting safety standards and preventing fire spread in case of component failure.

· Precise Voltage Limiting: Limits residual voltage (Up) to ≤1.8kV, effectively protecting downstream electrical and electronic equipment from overvoltage damage.

· Easy Installation & Monitoring: DIN-rail mount design for quick installation in distribution boxes; built-in visual status indicator for real-time operational monitoring.

· Multiple Specifications: Offers a range of surge current ratings (20kA–100kA) and 2P configurations to meet diverse single-phase power system protection needs.

· Residential Buildings: Installed in home distribution boxes to protect household appliances, lighting systems, and smart home devices from surge damage.

· Commercial Facilities: Safeguards small businesses, shops, and office power systems, including computers, printers, and network equipment.

· Small Industrial Sites: Protects low-power industrial machinery, control circuits, and single-phase power supply equipment.

· Retail & Service Outlets: Applied in supermarkets, restaurants, and service centers to ensure stable operation of POS systems and electrical equipment.

· Renewable Energy Systems: Complements solar inverter and small-scale renewable energy power systems to protect DC/AC conversion equipment.