Specifications General Product Type: Surge Protective Device (SPD) Series / Family: EA9L Model: EA9L 3P+N 20 kA Configuration: 3P+N (three phases + neutral) Mounting: DIN‑rail mountable (35 mm) Application: Surge protection in three‑phase low‑voltage power distribution systems Surge Protection Ratings Nominal Discharge Current (In): 20 kA per mode (8/20 µs waveform) Maximum Discharge Current (Imax): Typically ~20–40 kA range (model dependent) Protection Level (Up): Designed to clamp transient overvoltages to safe levels (typical values ~1.5–2.5 kV depending on mode and system) Response Time: Fast (< 100 ns) to protect sensitive loads Electrical Ratings Rated Operational Voltage (Ue): 230/400 V AC (three‑phase + neutral) Nominal Voltage (Un): 400 V AC Maximum Continuous Operating Voltage (Uc): ~440 V AC continuous Rated Frequency: 50/60 Hz Modes of Protection: Phase‑to‑Neutral (L‑N) Phase‑to‑Earth (L‑PE) Neutral‑to‑Earth (N‑PE) Phase‑to‑Phase (L‑L) Performance & Compliance Surge Type: Type 2 SPD (designed for installation at distribution boards) Standards Compliance: Designed in accordance with relevant surge protection standards (e.g., IEC 61643‑1) Coordination: Can be paired with upstream Type 1 SPDs for comprehensive protection Short‑Circuit Protection: Requires appropriate upstream overcurrent protection coordination Mechanical & Environmental Housing: Compact modular enclosure suitable for panel installation Terminal Connections: Screw clamp terminals for secure conductors Operating Temperature: Standard indoor environment range Degree of Protection: IP20 (front face) Installation Location: Indoor distribution panels and switchgear