TUV three phase ac type 1 surge protective device

FV25B/3+NPE-255
FATECH FV25B/3+NPE-255S is a TUV three phase ac type 1 surge protective device low voltage power distribution systems. As a Class I lightning surge arrester, it can discharge high impulse lightning current and limit overvoltage effectively to protect main distribution boards, industrial power equipment, commercial buildings and infrastructure. With stable performance, high discharge capacity and DIN‑rail installation, this SPD ensures safe and reliable operation for residential, commercial and industrial applications.

-Type 1+2 25kA@10/350us 1 phase lightning arrester.

-With indication window and remote control contacts.

-Unique designing, patent technology.

-Used in the lightning protection zones concept atboundary LPZ0B-LPZ1.

-The core parts are multilayer spark gap with high discharge capacity.

-Low residual voltage.

-Protection mode: L-N,N-PE.

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Product Brochure
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Advantage

Stable & Reliable Surge Protection

Stable & Reliable Surge Protection

Adopts high-quality core components and precise circuit design, providing stable and consistent performance to effectively suppress lightning surges and transient overvoltage, ensuring long-term safe operation of equipment.
Wide Application Compatibility

Wide Application Compatibility

Covers AC, DC, photovoltaic, PoE network, and signal surge protection solutions, widely used in solar systems, LED lighting, industrial control, security monitoring, buildings and infrastructure.
Durable Structure & Easy Installation

Durable Structure & Easy Installation

Features rugged housing (including aluminum enclosure for outdoor models), DIN‑rail mounting, pluggable design and compact size for easy installation, wiring and maintenance in various working environments.
Certified Quality & Cost-Effective

Certified Quality & Cost-Effective

Most core products have passed TUV, CE and international safety certifications, with strict quality control. Stable performance and reasonable pricing bring high cost-performance for global projects.

FV25B/3+NPE-255S

UN:220/380V

UC:275V

In:25kA

Iimp:25kA

Up≤1.5kV

Coding of TUV three phase ac type 1 surge protective device FV25B/3+NPE-255S

Dimension  & Circuit of TUV three phase ac type 1 surge protective device FV25B/3+NPE-255S

Installation of TUV three phase ac type 1 surge protective device FV25B/3+NPE-255S

 

Electrical parameters

Model. No. FV25B/3+NPE-255(S)
Test class IEC/EN/VDE Class I+II/B+C/T1 T2
Type of Network TT
Protection modes L-N,N-PE
Nominal Voltage 50（60）Hz UN 230/440V
Rated Voltage (Max. Cont. Operating Voltage) UC 255V
Impulse current (10/350us)[L – N]/[N – PE] limp ≥25/100kA
Nominal discharge current (8/20us) [L – N]/[N – PE] In ≥25/100kA
Voltage protective level Up ≤1.5kV
Response time tA ≤100ns
Recommended back-up fuse 315A
Isolation resistance ＞102MΩ
I/O Connections Multi core wire:16mm2~25mm2, Single core wire:16mm2~35mm2
Mounting Symmetrical rail (EN50022/DIN46277-3)
Operation temperature range/humidity/altitude -40°C~+80°C / 30%~90% / 3000m
Degree of protection IP20
Housing material UL94V-0
Disconnection indicator Mechanical indicator (Green: OK, Red: replace)
Remote control contact Optional

Searching For A Reliable SPD & Surge Protector To Secure Your Projects?

MOQ is flexible and can be negotiated. Depending on your system solution, Accept Customization for Small Orders. Design products as your specification. Professional protection and stable performance for global projects. Submit an online message. Reply within 24 hours by email.

Why Send Us An Inquiry？

  • Professional SPD & lightning surge protection solutions
  • Custom design for your project & small MOQ supported
  • Certified quality & factory direct price
  • Quick technical support & quotation
  • Response in 24 hours

We supply five-years warranty on surge protective devices and own the best after-sale service team, if any problem happens, our team will do our best to solve it for you.

It is usually about 15 days after receiving the payment and confirmed the order, but specific time should be based on the order quantity.

Independent test center, TUV, Patent certifications; 15 years export experience in the overseas market; good technical service and support.

We area manufacturer which is ISO 9001-2008 quality system on R&D, production and sales of surge arrester.