Weidmüller VPU AC I 3+1 275/25 LCF S 2N is a Combined surge arrester AC (Type 1+2), Mains voltage: 230 V / 400 V, Low voltage network: TN-C-S, TN-S, TT, IT with N, IT without N, Number of poles:. The device is a Type I lightning and surge protection and is also tested as Type II device. It can be installed in the main and sub distribution board and protects against direct lightning strikes and surge voltages caused by switching operations or indirect lightning. The portfolio offers suitability for various types of main voltage, worldwide usage in high-elevation regions and long warranty. All devices can be installed in various applications. https://elecena.pl/product/29438855/weidm-x171-ller-2730280000-vpu-surge-protector-ac-i-31-275-25-lcf-s-2n 2025-10-19 https://elecena.pl/product/29438855/weidm-x171-ller-2730280000-vpu-surge-protector-ac-i-31-275-25-lcf-s-2n 2026-07-21