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Original Equipment Manufacturer Component VPU II 4R 280V/12.5KA

Weidmüller VPU I 4 R 280V/12.5kA is a Type I+Type II combined lightning current and surge protective device (SPD), designed for 4-pole three-phase TN-S / TN-C-S low-voltage AC power distribution systems.

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Technical Specifications Model: VPU I 4 R 280V/12.5kA Brand: Weidmüller Protection Category: Type I + Type II Combined SPD (T1+T2) System Poles: 4P (3L+N+PE) Max Continuous Operating Voltage (Uc): 280 V AC Lightning Impulse Current (Iimp, 10/350μs): 12.5 kA per pole Nominal Discharge Current (In, 8/20μs): 25 kA Maximum Discharge Current (Imax, 8/20μs): 50 kA Voltage Protection Level (Up): ≤ 1.5 kV Response Time: ≤ 25 ns Leakage Current: ＜ 100 μA Remote Contact: 1CO signalling contact, rated 250V / 1A for remote fault monitoring TOV Temporary Overvoltage Withstand: 438 V Short-Circuit Current Rating (ISCCR): 25 kAeff Compliance Standard: IEC 61643-11, EN 61643-11, RoHS Compliant 3. Mechanical & Installation Parameters Mounting: Standard TS35 DIN rail mounting Wiring Terminal: Screw connection, wire cross-section: 0.25 ~ 35 mm², tightening torque: 2 ~ 3 N·m Protection Degree: IP20 (when installed in distribution box) Operating Ambient Temperature: -40 ℃ ~ +80 ℃ Storage Temperature: -40 ℃ ~ +85 ℃ Relative Humidity: 5% ~ 95% non-condensing Module Feature: Hot-pluggable replaceable cartridge, visual green/red status window Flammability Class: UL94 V-0 Applicable Grid: TN-S, TN-C-S, TT three-phase four-wire power supply system