Control Signal Surge Protector

Protect RS-485 Control Lines and Weak Current Circuits from Lightning Surges

The SP-005DC10-RS485 is a dedicated control signal surge protector engineered to defend RS-485 and other weak current circuits from lightning strikes and transient overvoltages. Built to IEC lightning protection standards, it integrates gas discharge tubes, varistors, and TVS diodes for multi-stage suppression, ensuring stable and secure operation of sensitive control equipment.

·Comprehensive Multi-Stage Defense

With a surge capacity of up to 5kA and an ultra-fast 1 ns response time, this device effectively absorbs and diverts harmful transients before they can damage RS-485 ports or control devices. The compact aluminum alloy housing provides superior heat dissipation, durability, and resistance to environmental stress, extending service life in demanding industrial or security environments.

·Compact, Flexible, and Easy to Deploy

The SP-005DC10-RS485 is designed for inline installation without the need for external power supply. Its compact footprint makes it easy to fit into cabinets, junction boxes, or field enclosures, providing reliable protection without complicating system layouts.

Applications

1.Security & Surveillance — Protect RS-485 PTZ cameras and access control panels from lightning damage.

2.Industrial Automation — Safeguard controllers, PLCs, and sensors operating on RS-485 or weak current networks.

3.Alarm & Monitoring Systems — Provide surge defense for alarm devices, detectors, and monitoring equipment.

4.Building Management Systems (BMS) — Ensure reliable communication for HVAC controllers, lighting, and smart sensors.