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MT540 and UMT540 Comparisons with Rishabh RIsh Con M+

Make Rishabh Iskra
Model Rish CON M+ MT 540
Input Parameters
System type Single Phase /
3 phase 3 wire Unbalanced/
3 phase 4 wire Unbalanced / (U12 I1) 3 Phase Balanced / (U23 I1) 3 Phase Balanced / (U31 I1) 3 Phase Balanced / 3 Phase 3 wire Balanced /
3 Phase 4 wire Balanced
Single Phase /
3 phase 3 wire Unbalanced /
3 phase 4 wire Unbalanced /
3 Phase 3 wire Balanced /
3 Phase 4 wire Balanced
Nominal voltage range (Un) 100 V - 600 VL-L
57.7 V - 346.42 VL-N
100 V - 866 VL-L
57.7 V - 500 VL-N
Max. measured value (cont.) voltage 1.5 X Un continuously 600 VLN ; 1000 VLL
Over voltage 2 X Un for 1 second, repeated 10 times at 10 seconds interval 2 X UN ; 10 s
Voltage circuit Burden 0.3 VA per phase < U2 / 4.2 M Ω per phase
Nominal current range (ln) 1 A ≤ In ≤ 5 A 0.31 A - 5 A
Max. measured value (cont.) current 2 X In continuously 15 A continuously
Overload Current 20 X In for 1 second, repeated 5 times at 5 seconds interval 20 X IN ; 5 X 1 s
Current circuit Burden 0.3 VA per phase < I2 X 0.01 Ω per phase
Frequency range 40-70 Hz 16 −400 Hz
Auxiliary power supply range 85V…285 VAC-DC 80…276 VAC / 70…300 VDC
48…77 VAC / 19…70 VDC
Auxiliary supply Burden 10VA 8VA
Output Parameters
Analogue Output Range -20mA....0....+20mA /
0…20mA / 4…20mA /
-10V....0....+10V /
0…10V
-1…0…1mA /
-5…0…5mA /
-10…0…10mA /
-20…0…20mA /
-1…0…1V /
-10…0…10V
Response Time 300 ms 100 ms
Accuracy Class
Voltage (V), Current (A) 0.2 0.2
Power factor (PF) 0.5 0.1
Frequency (F) 0.2 10mHz
Active Power 0.2 0.2
Reactive Power 0.5 0.2
Apparent Power 0.2 0.2
Active energy Class 0.5S as per IEC 62053-22 Class 1
Reactive energy - Class 2
Mechanical
Dimensions W X H X D 122.5 X 66.5 X 106.5mm 160 X 74 X 124mm
Weight 500 grams 500 grams
Enclosure Lexan 940 (polycarbonate) PC/ABS, PC (sliding cover)
Terminals Conventional Screw type terminal with indirect wire pressure
≤ 4.0 mm² single wire or
2 x 2.5 mm² fine wire
EU style clamp terminals
Programming Parameters
CT / PT(VT) ratio
Field-programmable primary and secondary values
PT Primary 100-1200kV LL
CT Primary 1A-9999A
PT Primary 0.1-1638.3 kV LL
CT Primary 0.1A-1638.3kA
Modbus registers User programmable User programmable
Environmental
Protection degree
(as per IEC 60529)
IP20 at terminals, IP40 on Housing IP20 at terminals, IP40 on Housing
Insulation 1min. ( EN 61010-1)
3.3kV RMS, Input versus outer surface
3.3kV RMS, Input versus all other circuits
3.3kV RMS, Auxiliary supply versus outer surface and output
500V RMS, Output versus output versus each other versus outer surface.
Protection class I,
3.3 kVAC RMS 1 min
Between coil and contact 4000 VDC
Between contacts 1000 VDC
Temperature -10°C to +55°C (operating)
-30°C to +80°C (storage)
-10°C to +55°C (operating)
-40°C to +70°C (storage)
Humidity 0....95%RH (Non Condensing)  93% r.h.
Compliance Standards EN/IEC 60688
IEC 62053-22
IEC 610101-2010
IEC 61326
EN 61010-1: 2001
EN 60688:1995 / A2: 2001
EN 61326-1:2006
EN 60529:1997/A1:2000
EN 60 068-2-1/ 6/ -27/-30 -2/
Measured Parameters
System Voltage
Per Phase (L1,L2,L3) Voltage
Phase to Phase(L12,L23,L31)
Voltage
System Current
Per Phase (L1,L2,L3)
Current
System Active Power
System Re-active Power
System Apparent Power
Per Phase (L1,L2,L3)
Active Power
Per Phase (L1,L2,L3)
Re-active Power
Per Phase (L1,L2,L3)
Apparent Power
System Current Demand
System kVA Demand
System Import kW Demand
System Export kW Demand
System Ind. Var Demand
System Cap. Var Demand
System Max kVA Demand
System Max Imp kW Demand
System Max Exp kW Demand
System Max Ind Var Demand
System Max Cap Var Demand
System Max Current Demand
Per Phase (L1,L2,L3) Current Demand
Per Phase (L1,L2,L3) kVA Demand
Per Phase (L1,L2,L3) Import kW Demand
Per Phase (L1,L2,L3) Export kW Demand
Per Phase (L1,L2,L3)
Inductive Var Demand
Per Phase (L1,L2,L3)
Capacitive Var Demand
Per Phase (L1,L2,L3)
Max kVA Demand
Per Phase (L1,L2,L3)
Max Import kW Demand
Per Phase (L1,L2,L3)
Max Export kW Demand
Per Phase (L1,L2,L3)
Max Ind Var Demand
Per Phase (L1,L2,L3)
Max Cap Var Demand
Per Phase (L1,L2,L3)
Max Current Demand
System Power Factor
Per Phase (L1,L2,L3)
Power Factor
System Phase Angle
Per Phase (L1,L2,L3)
Phase Angle
Frequency
RPM -
System Import Active Energy
System Export Active Energy
System Ind Reactive Energy
System Cap Reactive Energy
System Apparent Energy
Per Phase (L1,L2,L3) Import Active Energy
Per Phase (L1,L2,L3) Export Active Energy
Per Phase (L1,L2,L3) Inductive Reactive Energy
Per Phase (L1,L2,L3) Capacitive Reactive Energy
Per Phase (L1, L2, L3)
Apparent Energy
Neutral Current -
System Voltage THD -
Per Phase (L1, L2, L3)
Voltage THD
-
System Current THD -
Per Phase (L1, L2, L3)
Current THD
-
Per Phase (L1, L2, L3)
Individual Voltage Harmonics
-
Per Phase (L1, L2, L3)
Individual Current Harmonics
-
Run Hour -
On Hour -
Number of Interruptions -
Phase Reversal Indication -
Current Reversal Indication -
Phase Absent Indication -
Light
Dark