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Reliable Industrial Electronic Part VPU II 4R 280V/40KA

Weidmüller VPU II 4R 280V/40kA is a Type II modular surge protective device (SPD) designed for 4-pole 230/400V AC three-phase four-wire power distribution systems (TN-S, TN-C-S, TT). Equipped with a 1CO remote signalling contact for remote fault alarm, it adopts hot-pluggable replaceable varistor modules and standard TS35 DIN rail mounting.

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Technical Specifications Model: VPU II 4 R 280V/40kA Brand: Weidmüller Protection Category: Type II / Type III Surge Protective Device (T2/T3 SPD) Number of Poles: 4P (3L+N+PE) Max Continuous Operating Voltage (Uc): 280 V AC Nominal Discharge Current (In, 8/20μs): 20 kA per pole Maximum Discharge Current (Imax, 8/20μs): 40 kA per pole Voltage Protection Level (Up): ≤ 1.55 kV Response Time: ≤ 25 ns Leakage Current: ＜ 100 μA Remote Alarm Contact: 1CO, rated 250 V / 1 A Temporary Overvoltage Withstand (TOV): 438 V Short-Circuit Current Rating (ISCCR): 25 kAeff Max Backup Fuse Rating: 125 A gL/gG Compliance Standards: IEC 61643-11, EN 61643-11, CE, RoHS, EAC Certified 3. Mechanical & Environmental Parameters Mounting: Standard TS35 DIN rail mounting Module Width: 71.2 mm (4TE) Connection Method: Screw terminal, wire range: 0.25 ~ 35 mm² Protection Degree: IP20 (installed inside distribution box) Operating Ambient Temperature: -40 ℃ ~ +80 ℃ Storage Temperature: -40 ℃ ~ +85 ℃ Relative Humidity: 5% ~ 95% (non-condensing) Status Indicator: Green = Normal; Red = Fault (need module replacement) Flammability Class: UL94 V-0 Applicable System: 230/400V low voltage AC three-phase four-wire power grid