FATECH FV05D/1 series includes FV05D/1-150(S), FV05D/1-275(S), FV05D/1-320(S), FV05D/1-385(S) and FV05D/1-440(S), which are Class II+III/C+D/Type2+3 integrated surge protective devices.Applicable to TT, TN and IT power distribution systems, this single-pole SPD adopts L/N-PE protection mode, covering nominal voltage 110V and 220V with continuous operating voltage options from 150V up to 440V. It features maximum discharge current 10kA, nominal discharge current 5kA and ultra-fast response time ≤25ns, with graded voltage protection level from ≤0.6kV to ≤2.0kV for reliable transient overvoltage suppression.
With isolation resistance over 100MΩ and recommended 16A backup fuse, it supports multi-core wire connection of 4mm²–25mm² and standard 35mm DIN rail mounting. Equipped with mechanical status indicator (Green: OK, Red: Replace) and optional remote control contact, the unit adopts UL94V-0 flame retardant housing and IP20 protection degree. It withstands wide working temperature -40°C~+80°C, 30%~90% humidity and altitude up to 3000m, ideal for terminal overvoltage and surge protection in residential, commercial and industrial low-voltage power distribution systems.