Specifications General Product Type: Surge Protective Device (SPD) Series / Family: PRD Surge Protection Model: PRD020620 3P+N 20kA Configuration: 3P+N (three phases + neutral) Mounting: DIN rail Application: Surge protection for three-phase low-voltage electrical systems Surge Protection Ratings Maximum Discharge Current (Imax): 20 kA (surge current handling capacity) Nominal Discharge Current (In): Rated for 20kA Response Time: Fast response (<100ns) Surge Technology: Varistor-based or spark gap technology for voltage suppression Protection Modes: Phase-to-neutral (L-N), phase-to-earth (L-PE), and neutral-to-earth (N-PE) Electrical Ratings Rated Operational Voltage (Ue): 230/400 V AC (three-phase + neutral) Rated Frequency: 50/60 Hz Rated Insulation Voltage (Ui): 500 V Rated Impulse Withstand Voltage (Uimp): 4 kV Maximum Continuous Operating Voltage (Uc): 400 V AC Mechanical & Environmental Housing: Compact and modular design Terminal Connections: Secure screw clamp or spring-loaded terminals for easy wiring Operating Temperature Range: -40°C to +70°C Degree of Protection: IP20 (front side) Mounting: Fits standard DIN rail for installation in electrical distribution panels Performance & Compliance Standards Compliance: IEC 61643-1, UL 1449, CSA C22.2 No. 269 Electrical Durability: Rated for repeated transient overvoltage events Mechanical Durability: Designed for over 100,000 operations