SPD for AC Power Supply – Page 2

FATECH FV05D/4 series includes FV05D/4-150(S), FV05D/4-275(S), FV05D/4-320(S), FV05D/4-385(S) and FV05D/4-440(S), which are Class II+III/C+D/Type2+3 combined surge protective devices.
Designed for TT and TN power distribution systems, this 4-pole SPD adopts L1,L2,L3,N-PE full protection mode. It covers system nominal voltages of 110/220V and 220/380V, with maximum continuous operating voltage ranging from 150V to 440V. It features maximum discharge current 10kA, nominal discharge current 5kA and ultra-fast response time ≤25ns, with stepped voltage protection levels from ≤0.6kV up to ≤2.0kV to reliably suppress transient overvoltage.
With isolation resistance above 100 MΩ and 16A recommended backup fuse, it supports 4mm²–25mm² multi-core wire connection and standard 35mm DIN rail mounting. Equipped with mechanical status indicator (Green: OK, Red: Replace) and optional remote control contact, it applies UL94V-0 flame retardant housing and IP20 protection degree. Suitable for wide working conditions of -40°C~+80°C, 30%~90% humidity and altitude up to 3000m, it is widely used for comprehensive surge and overvoltage protection in three-phase four-wire residential, commercial and industrial low-voltage distribution systems.

FATECH FV10D/1-XXX series are Class II+III/C+D/Type2+3 single-pole combined surge protective devices suitable for TT, TN and IT power systems, providing reliable surge protection for L/N‑PE circuits.With Imax 20kA, In 10kA and fast response time ≤25ns, they deliver stable overvoltage protection. Featuring mechanical status indication (Green: OK, Red: Replace), DIN‑rail mounting and optional remote control contact, they are applicable to terminal low‑voltage power distribution in residential, commercial and industrial fields.

FATECH FV10D/1+NPE-XXX series are Class II+III/C+D/Type2+3 single-phase + NPE combined surge protective devices designed for TT power systems, providing complete surge protection for L-N and N-PE circuits.With Imax 20kA, In 10kA, open circuit voltage Uoc 20kA and graded response speeds (L-N:≤25ns, N-PE:≤100ns), they deliver stable and reliable overvoltage protection.Featuring mechanical status indication (Green: OK, Red: Replace), DIN-rail mounting and optional remote control contact, they are suitable for terminal low-voltage power distribution in residential, commercial and industrial applications.

FATECH FV10D/2-275S is a 2-pole AC surge protective device designed for low-voltage single-phase power distribution systems. It effectively suppresses lightning surges, transient overvoltages and switching surges to protect household appliances, office equipment, small electrical loads and distribution boxes from damage.
This SPD features compact structure, stable performance and standard DIN-rail installation for easy wiring and maintenance. With reliable protection performance and long service life, it is widely used in residential buildings, shops, small industrial sites and light commercial applications to ensure safe and stable operation of electrical circuits and equipment.

FATECH FV10D/2-XXX series are Class II+III/C+D/Type2+3 two-pole combined surge protective devices suitable for TT and TN power systems, providing surge protection for L-PE and N-PE circuits.With Imax 20kA, In 10kA, open circuit voltage Uoc 20kA and fast response time ≤25ns, they provide stable and reliable overvoltage protection.Featuring mechanical status indication (Green: OK, Red: Replace), DIN-rail mounting and optional remote control contact, they are widely used in terminal low-voltage power distribution for residential, commercial and industrial applications.

FATECH FV10D/3-XXX series are Class II+III/C+D/Type2+3 three-pole combined surge protective devices specially designed for IT power systems, providing comprehensive surge protection for L1-PE, L2-PE and L3-PE circuits.With Imax 20kA, In 10kA, open circuit voltage Uoc 20kA and fast response time ≤25ns, they deliver stable and reliable overvoltage protection.Featuring mechanical status indication (Green: OK, Red: Replace), DIN-rail mounting and optional remote control contact, they are suitable for industrial terminal low-voltage power distribution systems.