K15EUD undervoltage/overvoltage protection device is a device that can intelligently and automatically cut off the power supply quickly when the grid voltage changes suddenly. Its main purpose is to protect electrical equipment and lines from damage by overvoltage or undervoltage.
Under/over voltage protection device K15EUD is an indispensable part of the power system, protecting electrical equipment from damage caused by surge voltage or surge current in the electrical system.

Under/Over Voltage Protection Device K15EUD Parameter
| Country of Origin | Zhejiang, China |
| Brand | YXST |
| Model | K15EUD |
| Use | Household |
| Frequency | 50/60HZ |
| Over Voltage Protection | 260V (230V~280V adjustable) |
| Under Voltage Protection | 165V (140V~180V adjustable) |
| Delay Time | 5s/3min |
| Operating Voltage | 220V AC |
| Max Current | 10A / 13A / 15A / 16A |
| Package | Double Blister / Color Box |
| Connect By | Plug/Socket |
| Warranty | 1 Year |
K15EUD Under/Over Voltage Protection Device Features
1. Prevent equipment damage
The surge protector can quickly lead the surge voltage or current in the electrical system to the ground, preventing these voltages or currents from passing through the equipment, thereby protecting the equipment from damage.
2. Protect personal safety
The surge protector can effectively reduce the surge voltage in the electrical system and reduce the threat to personal safety caused by electric shock.
3. Improve system stability and reliability
By reducing the surge voltage and current in the electrical system, the surge protector can improve the stability and reliability of the system, reduce the occurrence of system failures, and extend the service life of the equipment.
4. Protect data and information security
The surge protector can prevent surge voltage from damaging sensitive electronic equipment such as computers and servers, thereby protecting data and information security.
Application
Core requirements for home applications
Protect household appliances: such as refrigerators, air conditioners, TVs, computers, and other precision electronic equipment from voltage fluctuations.
Personal safety: Prevent overheating, short circuits, or fire risks caused by abnormal voltage.
Automatic recovery: Automatically reset after a short voltage fluctuation to reduce manual intervention.
Easy to use: No professional debugging required, plug and play, or simple installation.
Office applications
Protect key equipment:
Servers, computers, network equipment (routers, switches), printers, monitoring systems, and other precision electronic equipment from voltage fluctuations.
Avoid data loss or hardware damage (such as hard disk damage due to unstable voltage).
Ensure office safety:
Prevent overheating, short circuits, or fire risks caused by abnormal voltage (offices are densely populated, and line loads are high).
Avoid flickering or damage to lighting systems due to voltage problems.
Automatic recovery and unattended operation:
The power supply can be automatically restored after a short voltage fluctuation to reduce manual intervention (such as protecting equipment when employees are not in the office).
Support delayed start (avoid frequent switching that affects equipment life).
Simple installation and maintenance:
Socket design (flexibly adaptable to office equipment). No professional debugging is required, plug and play.
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