RD-MVS1(2)/RD-MVS1(2)NSET

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RD-MVS1(2)/RD-MVS1(2)N

Microcontroller based
LCD indication for operating voltage and status
Overvoltage, undervoltage, phase failure, asymmetry and phase sequence protection
45Hz~65Hz wide measuring frequency
Supply voltage measurement (True RMS)
Menu setting for protection parameters
Test and manual reset by keys
N phase failure protection for 3phase 4wire system
2 module DIN rail housing

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Application Data Sheet Send Inquiry

Three phase voltage monitoring relay is used to protect the three-phase electric motors supplied from three-phase mains, against phase failure, incorrect phase sequence, voltage asymmetry, over and under voltage.

RD-MVS series voltage relay are designedfor the three-phase system voltage controland load protection. It is possible to set minimum and maximum voltage, hysteresis, asymmetry and ON / OFFdelay.The LCD display and keyboard enableeasy parameters visualization and programming.

Technical data

Models

RD-MVS1(2)

RD-MVS1(2)N

Supply terminals

L1,L2,L3

L3,N

Supply voltage

AC200~500V/50Hz

AC125~300V/50Hz

U> setting value

OFF-381~500V

OFF-221~300V

U< setting value

260V~379V-OFF

150V~219V-OFF

Asymmetry setting

OFF-5%~20%

U> trip delay

0.1~20s

U< trip delay

0.1~20s

Asymmetry trip delay

0.1~20s

Start-up delay

0.1~30s

Reset delay

0.1~30s

Voltage hysteresis

6V

5V

Asymmetry hysteresis

2%

Trip delay for phase failure

≤0.2s

Voltage measurement error

≤1%

Delay error

±5%+0.1s

Rated insulation voltage

415V

Output contacts

1C/0,1NO+1NC

Current rating

8A/250V AC1

Mechanical life

10⁶

Electrical life

10⁵

Protection degree

IP20

Pollution degree

3

Altitude

≤2000m

Operating temperature

-20℃~55℃

Permissable relative humidity

≤50% at 40℃（without condensation）

Storage temperature

-30℃~70℃

Wire size

0.5mm²~2.5mm²

Mounting

TH35 Rail（EN60715)

●Default setting parameters

Technical parameters

RD-MVS1(2)

RD-MVS1(2)N

Overvoltage trip value

437V

253V

Overvoltage trip delay

2s

Undervoltage trip value

323V

187V

Undervoltage trip delay

2s

Asymmetry trip value

8%

Asymmetry trip delay

2s

Phase sequence protective function

ON

Start-up delay

0.3s

Reset delay

0.3s

Auto-reset

ON

Front-face panel and legend of symbol

Inquiry of phase voltage value

Function diagrams(auto-reset mode)

Wiring diagrams

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Verification code*

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RD-MVS1(2)/RD-MVS1(2)N

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