LY21-1RJ11 TELEPHONE SURGE PROTECTIVE DEVICE

Description：

Product overview
LY21-1 series signal lightning protective device is connected in series in front
of the protected equipment,it is mainly used for overvoltage protection intruded
through a variety of audio signal lines into the device,such as SPC exchange, fax
equipment,MODEM,emergency phones, relay lines and so on.

The RJ11 telephone surge protection device protects telecommunication lines from lightning and switching surges.
It uses MOV ZnO to clamp voltage spikes effectively, ensuring uninterrupted communication.
The housing is made of PVC/PA66/PBT, durable and flame-retardant.
Compliant with IEC 61643-11:2011 / EN 61643-11:2022, and certified CE & TUV.
We are a professional OEM/ODM manufacturer, factory, and supplier, supporting wholesale, in bulk, and bulk buy.

Applicable scenarios / Application industries

Suitable for telephone networks, PABX systems, and home/business communication lines, easy DIN-rail installation.

Model	LY21-1
Rated operating voltage	45V	130V	170V
Max continuous operating voltage	60V	150V	185V
Rated load current	500mA
Flow withstand capacity	5KV&2.5KA
Clamping voltage x-×(1.2/50)	160V/240V/300V
Transmission rate	2Mbps
Insertion loss	≤0.2dB
lnterface type	RJ11
Protection grade	IP20

FAQ for LY21-1RJ11 TELEPHONE SURGE PROTECTIVE DEVICE

1. What are RJ11 telephone surge protective devices designed for?
RJ11 surge protective devices are designed to protect telephone and low-speed communication lines from lightning surges and induced transient overvoltage.

2. What applications require RJ11 surge protection?
They are commonly used in telephone lines, PBX systems, intercoms, alarm systems, and analog communication networks.

3. Do RJ11 SPDs affect voice quality?
No. These devices are engineered with low insertion loss, ensuring clear voice transmission without noise or interruption.

4. What protection components are typically used in RJ11 SPDs?
Most RJ11 surge protectors use GDT-based protection, offering high surge discharge capacity for telecom environments.

5. Where should RJ11 surge protective devices be installed?
They should be installed in series with the telephone line, as close as possible to the protected equipment.

6. Are these telephone SPDs compliant with international standards?
Yes. All RJ11 surge protective devices are manufactured according to IEC 61643-21 / EN 61643-21 and meet CE requirements.

7. Can these products be supplied in bulk or OEM branding?
Yes. We support OEM/ODM production, private labeling, and factory-direct wholesale supply.