Voltage and current display relay is a microprocessor-based voltage monitoring device for sinale-phase AC networks to protect electrical equipment from surge voltage. The device analyzes the main voltage and displays its curent value on a digital indicator. Load is switched by electro magnetic relay. The user can set the current voltage value and delay time through the button.The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.

The YC7VAN-3 is a high-performance three-phase line protection device. It continuously monitors the effective values of three-phase voltage and current, and can quickly disconnect the circuit when preset overvoltage or undervoltage faults are detected, effectively preventing electrical equipment damage and safety accidents caused by power grid abnormalities or equipment malfunctions. After the fault is eliminated, the device supports automatic reset to restore power supply

YC7VAN-WIFI kWh Voltage and Current Protector is a smart protection device that integrates remote control, energy monitoring, and multi-functional electrical protection. It supports real-time monitoring and app-based control from anywhere, with adjustable protection for overvoltage, undervoltage, overcurrent, and leakage. Users can preset voltage and current thresholds via the app, and the device will automatically cut off power when abnormal conditions occur, ensuring safe and efficient power management for residential and commercial applications.

General
YC9VA voltageand current display relay is a microprocessor-based voltagemonitoring devicefor single-phase AC networksto protectelectrical equipment from surge voltage.The deviceanalyzes the main voltage and displays its curent valueon a digitalindicator Load is switched by electromagnetic relay.The user canset the current voltage value and delaytime throughthe buttonThe value isstored in non-volatile memory.Aluminum wires and copper wires can be used forconnection.

General
Voltage and current display relay is a microprocessor-based voltage monitoring device for single-phaseAC networks toprotect electrical equipment from surgevoltage.The device analyzes themain voltage and displays itscurrent value on a digitalindicator Load isswitched by electromagnetic relay.The usercan set the currentvoltage value and delay timethroughthe button.The value is stored in non-volatile memory.Aluminum wires and copperwires can beused for connection.

General
Function description:When a phase of L1,L2,L3 overvoltaged,undervoltaged orphase lacked,the relay will be disconnected and automatically search for the normalphase,and switch to open the relay of the normal phase,switching priority
L1>L2>L3!

YC9VA-3 voltage and current display relay is a microprocessor-based voltage monitoring device for three-phase AC networks toprotect electrical equipment from surge voltage. The device analyzes the main voltage and displays its current value on a digitalindicator. Load is switched by electromagnetic relay. The user can set the current voltage value and delay time through the button.The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.

General
Function description:Whena phase of L1,L2,L3 overvoltaged,undervoltaged orphase lacked,the relaywill be disconnected andautomatically search for the normalphase,and switch to open the relay of the normal phase,switching priority
L1>L2>L3!