Parameter Value / Description Product Name Eaton DGMDC 3 Y PK 41 Type / Class Type 2 (Class II) Surge Protective Device (SPD) Rated Voltage 400 V / 230 V AC Nominal System Voltage 230/400 V AC Network Configuration 3-Phase + N (Neutral) + PE (Earth) SPD Circuit Configuration 3+1 Max. Continuous Operating Voltage Uc 335 V L-N / 335 V L-L Voltage Protection Level Up (at In) ≤ 1.5 kV Nominal Discharge Current In (8/20 µs) 20 kA per mode Max. Discharge Current Imax (8/20 µs) 40 kA per mode Impulse Current Iimp (10/350 µs) Not typically specified for Type 2; this is a Type 1 parameter. Short-Circuit Current Rating (SCCR) 50 kA (according to UL 1449 4th Ed.) Backup Fuse Recommendation 160 A gG / gL (or according to local regulations) Response Time < 25 ns Status Indication Visual (Green/Red window) Remote Signaling Contact Yes, typically 1 changeover (CO) contact (e.g., for connection to a building management system) Connection / Cross-Section 35 mm² flexible cable or 25 mm² solid cable Mounting Plug-in module on 35 mm DIN rail Standards Compliance IEC 61643-11, EN 61643-11, UL 1449 (4th Edition) IP Protection Degree IP20 Operating Temperature -40 °C to +80 °C Module Replacement Yes, with removable cartridge (PK 41)