Reliable Surge Protection for RS485 and Industrial Signal Lines
LY10 is a DIN-rail pluggable surge protective device designed for RS485, telemetry, remote-control, and industrial communication lines. Installed in series before sensitive equipment, it helps suppress induced transient overvoltage while maintaining signal transmission rates up to 10Mbps and insertion loss of no more than 0.2dB.
Designed for RS485 and industrial communication lines
12V, 24V, and 48V signal-system versions
Up to 10Mbps transmission with ≤0.2dB insertion loss
Compact DIN-rail plug-in design for control cabinets
Suitable Applications
LY10 is suitable for low-voltage data and control circuits that require surge protection without significantly affecting signal transmission.
RS485 Networks
Protects RS485 communication links used between industrial controllers, meters, sensors, and field devices.
PLC & Automation Systems
Helps protect PLC communication ports, automation controllers, and distributed I/O signal lines.
Telemetry & Remote Control
Suitable for telemetry, remote monitoring, remote-control, and SCADA signal circuits.
Sensors & Field Instruments
Protects low-voltage sensors, transmitters, meters, and field-instrument signal interfaces.
FAQ
Common questions about LY10 DIN-rail pluggable data signal surge protector selection and installation.
What is the LY10 signal surge protector used for?
LY10 is installed in series with low-voltage data or control lines to help suppress induced transient overvoltage before it reaches sensitive communication and automation equipment.
Is LY10 suitable for RS485 communication lines?
Yes. It is designed for RS485 and similar industrial data lines used by PLCs, meters, sensors, automation controllers, and remote-monitoring equipment.
Which operating voltage should be selected?
Select the 12V, 24V, or 48V version according to the normal operating voltage of the protected signal circuit. The selected maximum continuous voltage must remain above the circuit’s normal operating voltage.
Will the LY10 affect data transmission?
The listed transmission rate is up to 10Mbps and the listed insertion loss is no more than 0.2dB. Compatibility should still be confirmed against the actual communication protocol, impedance, and cable length.
How is the LY10 installed?
It is mounted on a DIN rail and connected in series ahead of the protected equipment. The protected and unprotected sides must follow the wiring diagram, and the grounding conductor should be kept as short as practical.
What should be confirmed before ordering?
Confirm the signal voltage, maximum continuous voltage, line current, communication protocol, transmission rate, number of conductors, terminal arrangement, grounding method, and required surge withstand level.
