FS-DN-12/RS485-3G DIN Rail 20kA surge protectors

FS-DN-12/RS485-3G
FATECH FS-DN-12/RS485-3G is a 3-stage surge protector designed for RS485 data communication lines. It provides reliable lightning and surge protection for industrial control, building automation and outdoor communication equipment, ensuring stable data transmission and long-term safe operation.

-Surge protective devices with plug-in protection modules for high-frequency signal transmission systems against surges at the boundaries from lightning protection zone 0B>2.

-Data network protector in according with IEC61643-21.

-Two parts design, surge protection modules to be exchanged easily.

-Limit the transients with gas discharge tubes.

-Two-stage protection circuit.

-35mm DIN-rail mounting design

Get a Quote
Get a Quote
Product Brochure
Click to enlarge

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.

FS-DN-12/RS485-3G

UN :12V

Uc : 15V

In : 10kA

Imax : 20kA

Iimp: 5kA

Up≤ 650kV

Dimension and circuit drawing of signal surge arrester FS-DN-12/RS485-3G

 

Electrical parameters

Model. No. FS-DN-12/RS485-3G
Configuration twisted pair+shied
Nominal voltage 50(60)Hz UN 12V
Max line voltage 15V
Nominal discharge current (8/20us,KA) IN 10 times 10kA
Total Max.Discharge current (8/20us,KA) Imax 1 time 20kA
Impulse current(Iimp)(10/350us KA)impulse 2times 5kA
Nominal current (A)IL 1A
Breakdown Voltage 90V(L-L);90V(L-SG);230V(SG-PG)
Protective level(Up) at 1kV/uS 650V(L-L);650V(L-SG);700V(SG-PG)
Series impedance per line(Ohm) 0 Ohm
Insertion loss at 10MHz(dB) ≤0.3
Mounting Symmetrical rail(EN50022/DIN46277-3)
Response time tA ≤10ns
Operation temperature range/humidity /altitude -40°C~+80°C / 30%~90% / 3000m
Housing material UL94 V-0
Degree of protection IP20

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

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.

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.