RM-FVA

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RM-FVA

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

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Three phase voltage protector is designed to protect electrical device in three phase systems against the unacceptable voltage fluctuations and unallowable current.

Technical data

Rated supply voltage

AC 220V

Operation voltage range

AC 50V~400V

Rated frequency

50/60Hz

Overvoltage(U>)setting range

220~300V

Undervoltage(U<) setting range

120~210V

Hysteresis

2%

Reset/start delay

Ts: 5s~600s

Overcurrent faults trip delay range

Ta: 5s~600s

Overvoltage（U>) trip delay

<0.1s

Undervoltage（U<） trip delay

≥120V:0.5s,<120V: 0.1 s

Overcurrent（l>) trip delay

ln<lr *<80A: Ta; Ir *≥lmax:≤0.1s

Voltage measurement accuracy

1%(over the whole range)

Rated insulation voltage

400V

Output contact

1NO

Electrical life

10⁵

Mechanical life

10⁶

Protection degree

IP20

*Operating current value

Technical parameter

Setting range

Step

Factory setting

Overvoltage trip value

220V~300V

1V

250V

Undervoltage trip value

120V~210V

1V

170V

Reset/start delay

5s~600s

1s

5s

Overcurrent trip value

5A~63A

1A

63A

Overcurrent trip delay

5s~600s

1s

15s

Asymmetry trip value

20V~99V

1V

50V

Continuous overcurrent faults times

OFF-1~20

1

3

Phase sequence protection

ON-OFF

OFF

Front panel

Function diagrams

Symbol

Wiring diagram

Name*

Email or Phone*

Message

Verification code*

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RM-FVA

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