SPD for AC Power Supply

FATECH FV03D/2-L series consists of FV03D/2-150L, FV03D/2-275L, FV03D/2-320L and FV03D/2-440L, belonging to Class II+III/C+D/Type2+3 integrated surge protective devices.
Designed for TT and TN power distribution systems, this two-pole SPD features L-PE and N-PE protection modes, suitable for nominal system voltages of 110/220V and 220/380V, with maximum continuous operating voltage options of 150V, 275V, 320V and 385V. It offers maximum discharge current 6kA and nominal discharge current 3kA, with excellent voltage protection level as low as ≤0.5kV to ≤1.2kV for effective transient overvoltage suppression.
It provides segmented response performance with L-N response time ≤25 ns and L/N-PE ≤100 ns. With isolation resistance over 100 MΩ and a 16A recommended backup fuse, it supports fine wire connection from 0.3mm² to 2.0mm² and standard 35mm DIN rail mounting.This model is fitted with LED indicator light for working status display and comes without remote control contact. Adopting UL94V-0 flame retardant housing and IP20 protection degree, it operates reliably at -40°C~+80°C, 30%~90% humidity and altitude up to 3000m. Compact and cost-effective, it is ideal for terminal surge protection in household, commercial and lightweight industrial low-voltage distribution systems.

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.

FATECH FV05D/1+NPE series covers FV05D/1+NPE-150(S), FV05D/1+NPE-275(S), FV05D/1+NPE-320(S), FV05D/1+NPE-385(S) and FV05D/1+NPE-440(S), adopting Class II+III/C+D/Type2+3 integrated surge protection design.
This series is specially designed for TT power distribution systems with L-N and N-PE combined protection mode. It adapts to nominal system voltages of 110/220V and 220/380V, with maximum continuous operating voltage ranging from 150V to 440V. It features maximum discharge current 10kA and nominal discharge current 5kA, with graded voltage protection levels: L-N up to ≤0.6kV~≤2.0kV and fixed N-PE protection level ≤1.5kV. The response time is ≤25 ns for L-N and ≤100 ns for N-PE, achieving precise and rapid surge suppression.
With isolation resistance over 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 adopts UL94V-0 flame retardant housing and IP20 protection degree. It operates reliably at -40°C~+80°C, 30%~90% humidity and altitude up to 3000m, ideal for single-phase terminal overvoltage and surge protection in TT system residential, commercial and industrial low-voltage distribution applications.

FATECH FV05D/2 series consists of FV05D/2-150(S), FV05D/2-275(S), FV05D/2-320(S), FV05D/2-385(S) and FV05D/2-440(S), belonging to Class II+III/C+D/Type2+3 combined surge protective devices.
Designed for TT and TN power distribution networks, this two-pole SPD adopts L-PE and N-PE protection modes, covering system nominal voltages of 110/220V and 220/380V, with maximum continuous operating voltage ranging from 150V to 440V. It features a maximum discharge current of 10kA, nominal discharge current of 5kA and fast response time ≤25ns, with graded voltage protection levels from ≤0.6kV to ≤2.0kV to effectively limit transient overvoltage.
Boasting isolation resistance above 100MΩ and a 16A recommended backup fuse, it supports 4mm²–25mm² multi-core wire connection and standard 35mm DIN rail mounting. Fitted with a mechanical status indicator (Green: OK, Red: Replace) and optional remote control contact, it adopts UL94V-0 flame retardant housing and IP20 protection degree. With wide adaptability of -40°C~+80°C operating temperature, 30%~90% humidity and altitude up to 3000m, it is widely used for terminal surge and overvoltage protection in residential, commercial and industrial low-voltage distribution systems.

FATECH FV05D/3 series including FV05D/3-150(S), FV05D/3-275(S), FV05D/3-320(S), FV05D/3-385(S) and FV05D/3-440(S) are Class II+III/C+D/Type2+3 integrated surge protective devices.
This three-pole SPD is specially applicable for IT power distribution systems with L1,L2,L3-PE protection mode. It covers nominal voltages of 110/220V and 220/380V, with maximum continuous operating voltage from 150V up to 440V. Equipped with maximum discharge current 10kA, nominal discharge current 5kA and rapid response time ≤25ns, it provides graded voltage protection levels from ≤0.6kV to ≤2.0kV to efficiently clamp transient overvoltage and surge interference.
Featuring isolation resistance over 100MΩ and 16A recommended backup fuse, it supports multi-core wire connection of 4mm²–25mm² and standard 35mm DIN rail installation. Built with mechanical status indicator (Green: OK, Red: Replace) and optional remote control contact, it adopts UL94V-0 flame retardant housing and IP20 protection degree. With wide working conditions of -40°C~+80°C temperature, 30%~90% humidity and altitude up to 3000m, it is an ideal overvoltage protection solution for industrial, medical and special IT low-voltage power distribution systems.

FATECH FV05D/3+NPE series includes FV05D/3+NPE-150(S), FV05D/3+NPE-275(S), FV05D/3+NPE-320(S), FV05D/3+NPE-385(S) and FV05D/3+NPE-440(S), which are Class II+III/C+D/Type2+3 combined surge protective devices.
This 3+NPE configuration SPD is specially designed for TT power distribution systems, adopting protection modes of L1,L2,L3-N and N-PE. It is applicable to nominal voltages of 110/220V and 220/380V, with maximum continuous operating voltage covering 150V to 440V. It delivers a maximum discharge current of 10kA and nominal discharge current of 5kA. The L-N voltage protection level ranges from ≤0.7kV to ≤2.0kV, while N-PE remains stably at ≤1.5kV. It features segmented response time of ≤25 ns for L-N and ≤100 ns for N-PE, ensuring fast and accurate clamping of transient surges.
With isolation resistance above 100 MΩ and a 16A recommended backup fuse, it supports 4mm²–25mm² multi-core wire connection and standard 35mm DIN rail mounting. Equipped with a mechanical status indicator (Green: OK, Red: Replace) and optional remote control contact, it adopts UL94V-0 flame retardant housing and IP20 protection degree. Capable of operating steadily within -40°C~+80°C, 30%~90% humidity and altitude up to 3000m, it is perfectly suited for three-phase four-wire surge and overvoltage protection in TT-system residential, commercial and industrial low-voltage distribution networks.