X855LS-GUARD – Lightning and Surge Protection for RS-485 Networks

The X855LS-GUARD is a robust surge protection device designed to secure RS-485 communication lines against the damaging effects of overvoltages, such as lightning-induced surges and switching transients. Built to meet industrial requirements, it ensures reliable operation of RS-485 networks, especially in demanding outdoor or exposed environments.

Key features:
– dedicated for RS-485 interface protection
– provides protection against lightning surges and overvoltages
– compatible with 2-wire or 4-wire RS-485 systems
– plug-in DIN rail mounting for easy installation
– equipped with replaceable protection modules
– optical indication of protection status
– very low series impedance to ensure minimal signal distortion
– compliant with IEC 61643-21 standard

Application areas:
– industrial automation systems
– building management systems (BMS)
– security and fire alarm systems
– any RS-485-based data communication infrastructure exposed to overvoltage risk

Designed and manufactured by GDE Polska, the X855LS-GUARD combines performance with serviceability, making it a reliable choice for long-term protection of RS-485 lines.