RD-MVA

Voltage protector is designed to protect home appliances (refrigerators, air conditioners, washing machines, television, video and audio equipment, etc.) against the unacceptable voltage fluctuations and unallowable current. The rated current can be set.

Features

Microcontroller based
Double 3 digit display for operating voltage value
Protect electrical device against overvoltage and undervoltage
Reset/start delay adjustable(5~600s)
Voltage measurement accuracy ≤1%
Parameters setting by keys
LEDs indication for overvoltage and undervoltage faults
3 Module, DIN Rail mounting

Front Panel

Symbol

Wiring Diagram

Function Diagram

Dimensions

Model	RD-MVA
Rated Voltage	AC 220V
Operation Voltage Range	AC 100V~400V
Rated frequency(Hz)	50/60Hz
Overvoltage(>U) Setting Range	220~275V
Undervoltage(<U) Setting Range	160~210V
Hysteresis	>U:5V; <U:3V
Reset/Start Delay	Ts: 5s~600s
Overcurrent Faults Trip Delay Range	Ta: 5s~600s
Overvoltage(U>) Trip Delay	<0.5s
Undervoltage(U<) Trip Delay	≥120V:0.5s ,<120V: 0.1s
Overcurrent(I>) Trip Delay	In<Ir <Imax: Ta; Ir ≥Imax: ≤0.1s
Voltage Measurement Accuracy	2%(over the whole range)
Rated insulation voltage	400V
Output Contact	1NO
Electrical Life	10⁵
Mechanical Life	10⁶
Protection Degree	IP20
Pollution Degree	3
Altitude	≤2000m
(Default) Overvoltage Trip Value	Factory setting : 250V, Setting range : 220V~300V, Step : 1V
(Default) Undervoltage Trip Value	Factory setting : 170V, Setting range : 120V~210V, Step : 1V
(Default) Reset/Start Delay	Factory setting : 5s, Setting range : 5s~600s, Step : 1s
(Default) Overcurrent Faults Trip Delay	Factory setting : 90s, Setting range : 5s~600s, Step : 1s
(Default) Current Specification	Factory setting : 50A , 63A, Setting range : 25A, Step : 32A , 40A
(Default) Rated operating current (In,A)	Factory setting : 16-50 , 16-63, Setting range : 1-25, Step : 1-32 , 1-40
(Default) Maximum Operating Current Imax (A, within 10min)	Factory setting : 60 , 80, Setting range : 32, Step : 40 , 50
(Default) Max Power of Load(kW)	Factory setting : 11 , 13.9, Setting range : 5.5, Step : 7 , 8.8
(Default) Maximum wire size(mm²)	Factory setting : 16 , 16, Setting range : 6, Step : 8 , 10