KWS-303 Adjustable Voltage and Current Protection Relay with Digital Display 63A Electrical Protector
Adjustable voltage and current protection relay designed for AC electrical protection, featuring over-voltage, under-voltage and over-current protection functions with digital display monitoring. The device provides reliable circuit protection and adjustable parameters for residential, commercial and industrial electrical applications.
Product Features
The KWS-303 is an adjustable voltage and current protection relay designed for monitoring and protecting AC electrical systems. The product integrates over-voltage protection, under-voltage protection and over-current protection functions to help protect electrical equipment from abnormal power conditions.
The device is equipped with a digital display screen and adjustment buttons, allowing users to monitor electrical parameters and set protection values according to different application requirements. The adjustable protection function provides flexible operation for various electrical environments.
The product adopts a compact modular structure with clear L/N input and output terminals. The DIN rail mounting design makes installation convenient and suitable for distribution boxes and electrical control systems.
Application
Suitable for residential distribution boxes, commercial electrical systems, industrial control panels and other AC electrical protection applications. It can be used for protecting household appliances, electrical equipment and power circuits from over-voltage, under-voltage and over-current conditions.
Specifications
Model: KWS-303
Product type: Adjustable Voltage & Current Protection Relay
Rated current: 63A
Rated voltage: AC 90-300V
Frequency: 50/60Hz
Protection functions: Over Voltage / Under Voltage / Over Current Protection
Display: Digital Display
Adjustment method: Button Setting
Installation method: DIN Rail Mounting
Input terminal: L / N
Output terminal: L / N
Brand: Bentong
Product Details
The KWS-303 adopts a compact modular design with a digital display interface and clear terminal identification. The front panel provides buttons for parameter adjustment and real-time electrical status checking.
The device supports adjustable voltage and current protection settings, allowing users to configure suitable protection parameters according to different electrical requirements.
With reliable protection performance, convenient operation and standard DIN rail installation structure, the KWS-303 is suitable for modern power distribution systems requiring intelligent electrical protection.




