RS-485 Surge Protector SPD-T485-105

RS-485 Surge Protection DeviceSKU: SPD-T485-105

RS-485 Surge Protector SPD-T485-105

Applications

Where SPD-T485-105 is deployed

Outdoor RS-485 Cables Lightning-Prone Sites Solar PV Farms Wind Farms Maritime Equipment Substation Telemetry Telecom Towers Oil & Gas Field
Certified Protection for High-Speed RS-485 Communication
RS-485 Surge Protector SPD-T485-105

When it comes to industrial communication networks, downtime from surge damage is not an option. The SPD-T485-105 RS-485 Surge Protector is the first in Indonesia certified to EN 61643-21, delivering world-class protection and performance you can trust.

Engineered for RS-485 systems operating up to 1 Mbps, it safeguards your data flow against lightning strikes, electrical surges, and electromagnetic interference, ensuring uninterrupted connectivity in even the harshest environments.

Certified Reliability

Compliant with:

  • EN 61643-21:2001+A1:2009+A2:2013. Surge protector performance & testing requirements.
  • EN IEC 61000-6-4:2019 & EN IEC 61000-6-2:2019. EMC compatibility and high immunity to electromagnetic interference.

Protect your network. Secure your data.
With the SPD-T485-105, you get certified, proven surge protection keeping your RS-485 communication stable, safe, and running at peak speed.

KEY FEATURES

Why engineers choose SPD-T485-105

01

10kA Surge Discharge

10kA (8/20μs) nominal discharge current handles direct lightning-induced transients. 20kA peak capacity.

02

<25ns Response Time

Sub-nanosecond clamp protects sensitive RS-485 transceivers before damaging energy reaches the line driver.

03

IEC 61643-21 Certified

Compliant with IEC 61643-21 Class III data line surge protection. Tested per IEEE C62.41 surge waveforms.

04

DIN Rail Plug-and-Play

35mm DIN rail mountable, screw terminals for in/out, ground bonding terminal. Compact form for crowded panels.

05

Dual-Stage Protection

Two-step sequencing barrier preserves device lifespan and enhances surge suppression performance. Industry-leading design.

06

High-Speed Data Compatible

Low capacitive load supports RS-485 data rates up to 1 Mbps. Harsh environment coating per IEC 60950 for long-term stability.

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FAQ

SPD-T485-105 | Frequently Asked Questions

What is the surge discharge capacity?
10kA nominal (8/20μs waveform) and 20kA peak discharge current. Handles lightning-induced transients on outdoor RS-485 cables in solar farms, wind farms, maritime, and telecom tower applications.
How fast does it respond to transients?
Less than 25 nanoseconds clamp response time. Sub-nanosecond suppression protects sensitive RS-485 transceivers before damaging energy reaches the line driver IC. Typical RS-485 chips fail at ~10ns transients.
Is it IEC-certified?
Yes. Compliant with IEC 61643-21 Class III data line surge protection. Tested per IEEE C62.41 surge waveforms. Documentation available for engineering submittals and tender requirements.
How is SPD-T485-105 installed?
35mm DIN rail mountable, screw terminals for in/out connections, grounding bonding terminal. Compact form for crowded panels. Install in-line on the RS-485 cable run, close to the protected device.
Get Started

Ready to protect your RS-485 communications?

Request a quote with site survey. Our engineers recommend SPD topology and grounding scheme for your specific cable runs within 24 hours.

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