ME337
1 Year
1 Year
Digital
Panel Mounting
Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter, Power Analyzer
Three-phase Four-wire
Electronic Meter
Terminal Type or RJ45 Port
Cts and Rogowski Coil
Energy Meter
RoHS, ISO, CE
Customized
External Cts, External Rogowski Coil
Alarm, 6 Tariff
95~265VAC, 12V DC, 24V DC
3pH4w 3pH3w 1pH2w (L-N) 1pH2w(L-L) 1pH3w(L-L-N)
Power Analysis, Tariff Meter
8K Samples Per Second
50th Max
2400BPS~115200BPS
Class 0.5s
Modbus RTU, RS485 Port
Adjustable From 0.1A to 9999A
0-600VAC
50/60Hz
LCD Display
MEATROL
Poly Bag and Stand Export Carton
96*96 *45mm
China
9030331000
Product Description
World-famous manufacturer
Three major production bases in Shanghai, Chongqing, and Zhejiang
Looking forward to in-depth communications, project cooperation, and exclusive agency
Three major production bases in Shanghai, Chongqing, and Zhejiang
Looking forward to in-depth communications, project cooperation, and exclusive agency
ME337
Three phase multi-function Smart meter
Three phase multi-function Smart meter

ME337 panel type three-phase multi-function power meter, connecting to external Rogowski coil or voltage type CTs, realize the test without removing the wire, simplify the test steps, and save construction costs. ME337 supports three-phase and single-phase systems; It can measure multiple electrical parameters such as voltage, current, power factor, harmonics, power, and energy of A, B and C phases.
ME337 is equipped with RS485 communication interface, through the standard Modbus-RTU protocol, can be compatible with various configuration systems, the front-end collected electrical parameters real-time transmission to the system data center.
*Fast installation
Product size is standard 96 panel type
Installation method is a snap on type, without screws
*Support multiple current transformer connections
The ME337N series supports a new type of current transformer - rogowski coil direct connection, without the need for an external integrator
The ME337N series supports voltage output type current transformer connection simultaneously
The ME337C series supports direct current connection, with a maximum connection current of 7A
*Support multiple power grid systems
Supports three-phase four wire, three-phase three wire, one phase three phase, and single-phase systems
*Multiple power supply options available
Available in 220VAC, 24VDC and 12VDC power supplies
*Support voltage and current harmonic measurement
Supports voltage, current, fractional harmonics, up to 50 measurements
Support voltage and current harmonic distortion and harmonic value measurement
Support voltage and current total harmonic distortion measurement
*More features
Support 6 rate tariff energy, support RTC switching or manual switching
Support demand measurement
Support alarm setting
Support current transformer orientation modification
Support current channel modification

Model naming

2. Features overview
Overview | |||||
Type | Panel type | ||||
Model | ME337 | ||||
Current sensor type | ME337N | ME337C | |||
Rogowski coil, voltage output type CT | Current type transformer | ||||
Characteristic | Support direct access to Rogowski coils | Direct current connection | |||
Advantage | Suitable for wide current range, without disassembling wires for measurement | ||||
Wire system | 3P4W 4CT,3P4W 3CT,3P3W 3CT,3P3W 2CT,1P3W,1P2W | ||||
Application | Power analysis, energy measurement | ||||
Display screen | LCD display | ||||
Weight | 259g | ||||
Size | L*W*D:96*96 *45mm | ||||
Color | White and black | ||||
Current measurement | |||||
Channel input range | ME337N | ME337C | |||
0-900mVAC peak,636mV RMS | 0-7A AC | ||||
Measuring range | Rogowski coils | Voltage output type CT | 0-7A AC | ||
50mV/kA@50Hz(0-12000A),@60Hz(0-10000A) 85mV/kA@50Hz(0-7000A),@60Hz(0-6000A) 100mV/kA@50Hz(0-6000A),@60Hz(0-5000A)... | Varies with instrument transformer parameters | ||||
Voltage measurement | |||||
Measuring range | 0~600VAC Phase voltage | ||||
Maximum measurement | 720VAC Phase voltage | ||||
Digital signal | |||||
Relay output | 1 electromagnetic relay output, contact capacity: 3A 30V DC, 3A 250V AC | ||||
Digital input | 2 dry contact inputs, optocoupler isolated (5kVrms) | ||||
Communication | |||||
RS485 | One RS485 communication interface, interface type: two-wire half-duplex Communication rate: 2400bps~115200bps Specification: Modbus-RTU | ||||
Power supply | |||||
Power | ME337XX2 | ME337XX3 | ME337XX4 | ||
95~265VAC/110~370VDC,45~60Hz | 18-36VDC | 9-18VDC | |||
Maximum power consumption | 3.5VA |
3. Data display
Instantaneous value | |
Phase voltage | U1,U2,U3,AVG |
Line voltage | U12,U23,U31,AVG |
Current | I1,I2,I3,AVG,In |
Grid frequency | F1,F2,F3,∑ (Total) |
Power factor PF | PF1,PF2,PF3,∑(Total) |
Displacement Power factor DPF | DPF1,DPF2,DPF3,∑(Total) |
Active power | P1,P2,P3,∑(Total) |
Reactive power | Q1,Q2,Q3,∑(Total) |
Apparent power | S1,S2,S3,∑(Total) |
Energy | |
Active Energy Import | EP1,EP2,EP3,∑(Total) When the total Energy reaches 1.0 x 10^9 kWh, the energy of each phase will automatically clear to zero |
Active Energy Export | EP1,EP2,EP3,∑(Total) When the total Energy reaches 1.0 x 10^9 kWh, the energy of each phase will automatically clear to zero |
Reactive Energy Import | EQ1,EQ2,EQ3,∑(Total) When the total Energy reaches 1.0 x 10^9 kVARh, the energy of each phase will automatically clear to zero |
Reactive Energy Export | EQ1,EQ2,EQ3,∑(Total) When the total Energy reaches 1.0 x 10^9 kVARh, the energy of each phase will automatically clear to zero |
Apparent Energy | ES1,ES2,ES3,∑(Total) When the total Energy reaches 1.0 x 10^9 kVAh, the energy of each phase will automatically clear to zero |
Tariff Energy | ET1,ET2, ET3,ET4, ET5,ET6 When Energy reaches 1.0 x 10^9 kWh, Energy automatically clears to zero |
Harmonics | |
Voltage harmonic percentage | Total harmonics (U1, U2, U3), odd total harmonics (U1, U2, U3), even total harmonics (U1, U2, U3) Fractional harmonics of order 1-50 (U1, U2, U3) |
Current harmonic percentage | Total harmonics (I1, I2, I3), odd total harmonics (I1, I2, I3), even total harmonics (I1, I2, I3), K factor (I1, I2, I3) Fractional harmonics of order 1-50 (I1, I2, I3) |
Voltage harmonic value | Total harmonics (U1, U2, U3) Fractional harmonics of order 1-50 (U1, U2, U3) |
Current harmonic value | Total harmonics (U1, U2, U3) Fractional harmonics of order 1-50 (U1, U2, U3) |
Phase diagram | |
Phase sequence | Voltage, current |
Voltage angle | U1,U2,U3 |
Current angle | I1,I2,I3 |
Voltage and current angle | UI1,UI2,UI3 |
Demand | |
Demand | Total Active power, Total Reactive power, Total Apparent power |
Total Active power demand max | Maximum demand and time |
Total Reactive power demand max | Maximum demand and time |
Total Apparent power demand max | Maximum demand and time |
Unbalance | |
Voltage unbalance | Negative order, zero order |
Current unbalance | Negative order, zero order |
Max.&Min. | |
Phase voltage | Phases and averages |
Line voltage | Phases and averages |
Current | Phases and averages |
Active power | Phases and averages |
Reactive power | Phases and averages |
Apparent power | Phases and averages |
4. Accuracy and certification
Measuring accuracy | ||
current measurement accuracy | 0.1%+Accuracy of current sensor | |
Voltage measurement accuracy | ±0.2%(60V~600V AC) | |
Grid frequency | ±0.01%(45~65Hz) | |
Power factor | ±0.005 | |
Active and apparent power | IEC62053-22 level 0.5S | |
Reactive power | IEC62053-21 level 1S | |
Active energy | IEC62053-22 level 0.5S | |
Reactive energy | IEC62053-21 level 1S | |
Environment condition | ||
Operating temperature | -20ºC~+70ºC | |
Storage temperature | -40ºC~+85ºC | |
Humidity range | 5~95% RH, 50ºC(non-condensing) | |
Class of pollution | 2 | |
Over voltage capability | CAT III 1000V, It is suitable for distribution system below 277 / 480VAC | |
Insulation strength | IEC61010-1 | |
Altitude | 3000m Max | |
Antipollution level | IP20(Meet the standard of IEC 60629) | |
Quality guarantee period | 12 months |




Current sensors for reference, more options could be offered.
RATED CURRENT | CURRENT SENSOR | DESCRIPTION |
5A | SCT-10 | Diameter 10mm |
50A | SCT-16 | Diameter 16mm |
100A | MRC-16 | Diameter 16mm (Rogowski coil) |
300A | MRC-24 | Diameter 24mm (Rogowski coil) |
600A | MRC-36 | Diameter 36mm (Rogowski coil) |
1kA | NRC-100 | Diameter 100mm (Rogowski coil) |
3kA | NRC-150 | Diameter 150mm (Rogowski coil) |
6kA | NRC-200 | Diameter 200mm (Rogowski coil) |



