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Industrial Grade Communication Module PU II 1 385V 20KA 40KW

Weidmüller PU II 1 385V is a single-pole Type II modular surge protective device (SPD) designed for 400V three-phase low-voltage AC power distribution systems.

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Technical Specifications Model: PU II 1 385V 20kA / 40kA Brand: Weidmüller Protection Class: Type II Surge Protective Device (T2 SPD) Number of Poles: 1P (Single Pole) Max Continuous Operating Voltage (Uc): 385 V AC Nominal Discharge Current (In, 8/20μs): 20 kA Maximum Discharge Current (Imax, 8/20μs): 40 kA Voltage Protection Level (Up): ≤ 1.55 kV Response Time: ≤ 25 ns Leakage Current: ＜ 100 μA Temporary Overvoltage Withstand (TOV): 605 V Short-Circuit Current Rating (ISCCR): 25 kAeff Max Recommended Backup Fuse: 125 A gL/gG Overvoltage Category: III; Pollution Degree: 2 Compliance Standards: IEC 61643-11, EN 61643-11, CE, RoHS Certified 3. Mechanical & Environmental Parameters Mounting: Standard TS35 DIN rail mounting Module Width: 17.8 mm (1TE) Connection Type: Screw terminal, applicable wire cross-section: 0.25 ~ 35 mm² Protection Degree: IP20 (Indoor cabinet installation only) Operating Ambient Temperature: -40 ℃ ~ +80 ℃ Storage Temperature: -40 ℃ ~ +85 ℃ Relative Humidity: 5% ~ 95% non-condensing Status Indicator: Green = Normal operation; Red = Fault, replace module Flammability Class: UL94 V-0 Applicable Grid: 400V three-phase AC power supply system (TN‑S, TN‑C‑S, TT)