Reliable Surge Protection for RS485 and Industrial Signal Lines
LY10 is a DIN-rail-mounted data signal surge protector designed for RS485, telemetry, remote-control, PLC, sensor, and industrial communication lines. Installed in series before sensitive equipment, it helps limit induced transient overvoltage while supporting transmission rates up to 10Mbps with insertion loss of no more than 0.2dB.
Designed for RS485 and industrial communication circuits
12V, 24V, and 48V signal-line versions
Up to 10Mbps transmission with ≤0.2dB insertion loss
Compact terminal-connected design for DIN-rail control cabinets
Suitable Applications
LY10 is suitable for low-voltage data and control lines that require surge protection without significantly affecting signal transmission.
RS485 Bus Networks
Protects long-distance RS485 links between controllers, meters, sensors, and field equipment.
PLC & Automation
Helps protect PLC interfaces, distributed I/O, machine controls, and factory automation networks.
BMS & HVAC Controls
Suitable for building management, HVAC, access control, and intelligent monitoring signal lines.
Solar Monitoring Systems
Protects inverter communication, tracker-control, weather-station, and solar plant monitoring lines.
FAQ
Common questions about LY10 RS485 data signal surge protector selection and installation.
What is the LY10 data signal surge protector used for?
LY10 is installed in series with low-voltage communication or control lines to help suppress induced transient overvoltage before it reaches sensitive equipment.
Is LY10 suitable for RS485 networks?
Yes. It is designed for RS485 and similar industrial data lines used by PLCs, meters, sensors, automation controllers, and remote-monitoring equipment.
Which voltage version should be selected?
Select the 12V, 24V, or 48V version according to the normal operating voltage of the protected signal circuit. The corresponding maximum continuous voltage is 15V, 30V, or 60V.
Will LY10 affect data transmission?
The listed transmission rate is up to 10Mbps and the listed insertion loss is no more than 0.2dB. The actual protocol, impedance, baud rate, and cable length should still be confirmed.
How should the LY10 be installed?
Mount it on a DIN rail and connect it in series before the protected equipment. Follow the input and protected-side markings, and keep the grounding connection as short and direct as possible.
What should be confirmed before ordering?
Confirm the signal voltage, maximum continuous voltage, line current, protocol, baud rate, number of conductors, terminal arrangement, grounding method, and required surge withstand level.
