LY21-2 CAT1/CAT4/CAT8 RJ45 NETWORK SURGE PROTECTIVE DEVICE

Description：

LY21-2 series signal SPD is connected in front of equipment in series, is mainly used to protect against the overvoltage intruded along with the network lines such as network switch, server,MODEM, network termination equipment and so on.POE network SPD is applicable for power over Ethernet equipment such as POE camera.

The RJ45 CAT1/4/8 SPD provides surge protection for lower-speed network lines, including telecom, POE, and data transmission.
It uses MOV ZnO for effective surge suppression.
Constructed with PVC/PA66/PBT housing, durable and flame-retardant.
Complies with IEC 61643-11:2011 / EN 61643-11:2022, certified CE & TUV.
We are a factory-based OEM/ODM manufacturer and supplier, offering wholesale, in bulk, and bulk buy services.

Applicable scenarios / Application industries

Perfect for data networks, industrial monitoring systems, and communication lines, DIN rail ready.

Model	LY21-2
Spec	CAT1/CAT4/CAT8
Rated operating voltage	5V
Max continuous operating voltage	6V
Rated load current	500mA
Flow withstand capacity	5KV&2.5KA
Clamping voltage x-×(1.2/50)	30V
Transmission rate	100Mbps
Insertion loss	≤0.2dB
lnterface type	RJ45
Protection grade	IP20

FAQ for LY21-2 CAT1/CAT4/CAT8 RJ45 NETWORK SURGE PROTECTIVE DEVICE

1. What is the main purpose of this RJ45 network surge protective device?
This model is designed to protect Ethernet data transmission lines from lightning surges and induced transient voltages in non-POE networks.

2. What is the difference between this model and POE surge protectors?
Unlike POE SPDs, this version focuses purely on data signal protection and does not carry DC power, making it suitable for standard Ethernet systems.

3. Which environments commonly use this SPD?
It is widely used in office networks, industrial Ethernet systems, automation communication lines, and control cabinets.

4. What protection components are used internally?
The device adopts high-speed MOV-based protection, ensuring fast response without affecting signal transmission.

5. Will this SPD reduce network speed or bandwidth?
No. It is designed to support stable data transmission with minimal insertion loss, suitable for continuous operation.

6. How should this RJ45 SPD be installed?
It is installed inline with the Ethernet cable, close to the protected network equipment.

7. Is this product available for OEM and bulk orders?
Yes. As a professional SPD factory, we support OEM branding, wholesale supply, and bulk production.