RS232 / RS485 / RS422 / Ethernet Surge Protectors

Our passive, rugged, industrial-grade RS232 / RS485 / RS422 / Ethernet surge protectors are designed for direct industrial DIN-rail mounting and they come with two (2) or three (3) stages of surge protection — Gas Discharge Tube (GDT), protection resistors, and Transient Voltage Suppressor (TVS) - for maximum protection. From 2-wire RS485, 4-wire RS422 / RS485, to 10 / 100 / 1000M Ethernet, CommFront's surge protectors safeguard your data lines and provide you with a peace of mind.

SAFETY

Safety

WORLD-CLASS TESTING LABS

CommFront products are strictly certified by SGS and/or TUV - the Nationally Recognized Testing Laboratories [NRTLs] in North America (approved by OSHA) and the Notified Bodies in the European Union. Learn More

QUALITY

Quality

ISO 9001 STANDARDS

CommFront products are designed and manufactured to ISO 9001 standards. Our quality control system is strictly certified by SGS (Cert No. SG12/04213). Learn More

WARRANTY

Warranty

100% SATISFACTION

CommFront products have been proven to be reliable. We back our high-quality products with a 5-year replacement warranty and a 30-day risk-free money-back guarantee. Learn More


SPD-485-1

2-Wire RS485 Surge Protector (Industrial / Passive)

  • Industrial 2-wire RS485 surge protector (passive).
  • Protects RS-485, telephone, facsimile and other communication lines.
  • 3-stage surge protection.
  • 3-way self-clamping terminal blocks for data lines and the shield wire.
  • Dedicated cable lug for solid earth ground connections.
  • Passive circuitry, no power is required.
  • Supports data rates up to 10Mbps.
  • Direct DIN-Rail mounting.
  • Operating temperature: -40°F to 185°F (-40°C to 85°C).
  • Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
  • Test Standards: IEC61643-21 / EN61643-21.
  • 5-year manufacturer’s warranty.

$64.95

In Stock


SPD-422-1

4-Wire RS422 / RS485 / RS232 Surge Protector (Industrial / Passive)

  • Industrial 4-wire RS422 / RS485 / RS232 surge protector (passive)
  • Protects RS-422, RS-485, RS-232, telephone, facsimile and other communication lines.
  • 3-stage surge protection.
  • 5-way self-clamping terminal blocks for data lines and the shield wire.
  • Dedicated cable lug for solid earth ground connections.
  • Passive circuitry, no power is required.
  • Supports data rates up to 10Mbps.
  • Direct DIN-Rail mounting.
  • Operating temperature: -40°F to 185°F (-40°C to 85°C).
  • Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
  • Test Standards: IEC61643-21 / EN61643-21.
  • 5-year manufacturer’s warranty.

$69.95

In Stock


SPD-ETH-1

10 / 100 / 1000M Ethernet Surge Protector (Industrial / Passive)

  • Industrial 10 / 100 / 1000M Ethernet surge protector (passive).
  • Protects 10 / 100 / 1000M Ethernet data lines.
  • 2-stage surge protection.
  • RJ45 female sockets for easy connections.
  • Dedicated cable lug for solid earth ground connections.
  • Passive circuitry, no power is required.
  • Supports data rates up to 1000Mbps.
  • Direct DIN-Rail mounting.
  • Operating temperature: -40°F to 185°F (-40°C to 85°C).
  • Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
  • Test Standards: IEC61643-21 / EN61643-21.
  • 5-year manufacturer’s warranty.

$69.95

In Stock