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RS-MV37

Microcontroller based.
True RMS measurement
Parameters setting by knobs
N phase failure protection for 3phase 4 wire
1NO+1NC output-8A
LED indication for supply and output state
1 module Din-rail mounting
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Three phase voltagemonitoring 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.

Technical data


Modes

3Phase 3wire

3Phase 4wire

Supply terminals

L1,L2,L3

L1,L2,L3,N

Supply voltage

380V/400V/415V

220V/230V/240V

Operating voltage range

266V-540V

154V-312V

U> setting value

(105%-125%)×Un

U< setting value

(75%-95%)×Un

Asymmetry setting

adjustable: 5%~20%;fixed:8%

U> trip delay

adjustable: 0.1 ~10s; fixed:2s

U< trip delay

adjustable: 0.1 ~10s; fixed:2s

Asymmetry trip delay

adjustable: 0.1 ~10s; fixed:2s

Hysteresis

2%fixed

Trip time for incorrect phase sequence and phase failure

<0.5s

Delay error

±10%+0.1s

Knob setting error

1% x scale value

Rated insulation voltage

415V

Output contacts

1C/0

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/Torque

0.5mm2~2.5mm2 /0.5Nm

Mounting

TH-35 RailEN60715)


Models

U>

U<

Phase failure

Phase sequence

Asymmetry

RS-MV31(N)

 

 

 

RS-MV32(N)

 

 

RS-MV33(N)

 

 

RS-MV34(N)

 

 

RS-MV35(N)

 

 

RS-MV36(N)

 

RS-MV37(N)


Models

Supply voltage (Un)

Note

RS-MV31/208

3×208

3Phase 3wire

RS-MV31/220

3×220

3Phase 3wire

RS-MV31/240

3×240

3Phase 3wire

RS-MV31/380

3×380

3Phase 3wire

RS-MV31/400

3×400

3Phase 3wire

RS-MV31/415

3×415

3Phase 3wire

RS-MV31N/220

3×380/220

3Phase 4wire

RS-MV31N/230

3×400/230

3Phase 4wire

RS-MV31N/240

3×415/240

3Phase 4wire



Front-face panel



Function diagrams



Wiring diagrams


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