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IEC61643 Type 1+2 Iimp 25kA Single Phase AC Surge Protector

  • FV25B/1+NPE-255 S


TUV approved AC Surge Arrester for low-voltage distribution system

Model No.: FV25B/1+NPE-255 S

• TUV approved Class I+II/ Type 1+2 surge protector.

• Tested ccording to IEC61643-11.

• For using in the lightning protection zones concept at boundary 0-1.

• The core parts are metal oxide vristor components with high discharge capacity.

• Reliable control thanks to Thermo Dynamic Control disconnector.

• With remote signaling contact for control device.

• Fault indication via red mark in the inspection window.

• Protection mode --- L-N,N-PE


fv25B 1+NPE code

2. Dimension & Circuit

fv25B 1+NPE dimension

3. Electrical parameters

Model. No.


SPD protection conforms to IEC 61643-11 / EN 61643-11

Type 1+2

SPD installation type conforms to IEC 61643-11 / EN 61643-11

Class I+II

Protection level conforms to DIN VDE0675-6


Type of Network


Protection mode

L-N , N-PE

Nominal Voltage   UN

230 Vac/50(60)Hz

Maximum continuous operating voltage   UC

255 Vac/50(60)Hz

Continuous operating current   IC

<20 µA

Residual current   IPE

≤20 µA dc

≤500 µA ac

Standby power consumption   PC

≤25 mVA

Nominal discharge current (8/20μs) [L-N]/[N-PE]   In

≥25/50 kA

Impuse discharge current (10/350μs) [L-N]/[N-PE]   Iimp

≥25/50 kA

Voltage protection level   Up

≤1.5 kV

Isolation resistance   Risol

>1000 MΩ

Response time   tA

≤100 ns

Follow up current extinguishing capability [L-N]/[N-PE]

≥25 kArms / 100 Arms

Let-Through-Energy in combination with an MOV S20K275 Iimp 0÷25kA(10/350μs)

≤ 151 Jouls

Temporary overvoltage (TOV)

≥ 440 Vac/120 min

Remote control contact


Disconnection indicator

Mechanical indicator

(Green: OK, Red: Replace)

Minimum area of connecting cable

16 mm2

Maximum area of connecting cable

35 mm2

Installation location


Mounting type

35mm DIN rail acc. to EN 60715



Degree of protection


Housing material


Ambient temperature

-40°C ~+80°C


≤2000 m (amsl (above mean sea level))

Permissible humidity


5. Installation

fv25B 1+NPE installation

Product Inquiry

We are professional manufacturer on R&D, production of surge protection products, including TUV certified AC SPDs according to IEC61643-11:2011, DC SPDs for PV system according to IEC61643-31, SPDs for PoE, surge counters and surge protection products test devices.

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