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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: REHE
  • Model Number: RH-3D
  • Measuring Current Range: 0.5
  • Measuring Voltage Range: 0.5
  • Measuring Resistance Range: 0-9999
  • Measuring Capacitance Range: 0-9999
  • Measuring Inductance Range: 0-9999
  • Operating Temperature: -10°C ~+55°C
  • Dimensions: 120*60
  • name: 1-phase meter
  • color: white and black
  • display: 4 digits red LED
  • dimension: 120*60
  • range: 0-9999
  • accuracy: 0.5
  • delivery: within 45 days after receipt of 30% payment by T/T
  • package: water-proof polybag+paperbox+export carton
  • warranty: 2 year
  • service: OEM and ODM availabel

Packaging & Delivery

Packaging Details water-proof polybag+paperbox+export carton
Delivery Time within 45 days after receipt of 30% payment by T/T


1. Certificate: ISO, CE
2. Case Material: ABS
3. OEM available
4. support RS-485, Modbus-RTU
5. measuring range: 0-9999

Product Description



1. digital power meter measures voltage, current, power, power factor, kWh, kvarh

2. RS485/ Modbus

3. power quality analysis

RH-3D digital Power Meter Features:

1. Suit for LV/ HV voltage system

2. Compact design with all real-time measurement

3. Consist of basic unit and optional modules

4. 10 years back-up of integrated energy data

5. Large LCD, high brightness, auto-scrolling

6. High accuracy, V or I is 0.5%, kWh is class 1

7. CT and PT programmable

8. Pluggable terminals, easy to install

9. Panel size: 96 x 96mm

10. Password protect

RH-3D digital Power Meter Basic Function:

Provide one RS485 communication, measures and display real-time parameters:

1. Voltage—Ua, Ub, Uc, Uab, Ubc, Uca

2. Current—Ia, Ib, Ic, In

3. Active power – Pa, Pb, Pc, ∑P

4. Reactive power –Qa, Qb, Qc, ∑Q

5. Apparent power—Sa, Sb,Sc, ∑S

6. Power factor—PFa, PFb, PFc, ∑PF

7. Frequency

8. Active energy—kWh (4 quadrant)

9. Reactive energy– kvarh (4 quadrant)

10. Demand and Max. record for I, P, Q, S

11. Unbalance rate for U, I

12. Max./ Min. value

RH-3D Digital Power Meter DI/ DO Modules:

1. 4 status input + 4 relay output

2. 8 status input + 2 relay output

3. 8 status input + 2 pulse output

4. Profibus communication module

RH-3D Digital Power Meter Optional Function:

1. Up to 31st harmonic analysis, K factor, THD

2. SOE (event log)

3. One 4~20mA analog output



Performance Characteristics
High precision measurement of three phase voltage, three phase current, active power, reactive power, apparent power, power factor, frequency of electric parameters
Forward and reverse active or reactive energy measurement
Division of electric energy metering, time-sharing power timing meter reading
Measurement of three-phase voltage, three-phase current total harmonic distortion (THD), 2-31 odd harmonic component
Provide the digital tube display, local data query
Menu button intuitive, simple operation
Current, voltage gain programmable setting
Programmable voltage ratio
Support for fire control, remote cut off the fault circuit
Provide multiple loop control nodes, can be used for the alarm, trip control
Support for RS-485 communication, Modubus-RTU protocol
Support for switching input, output, analog quantity transmitting output
Convenient installation, wiring is simple, small engineering quantity
A wide range of AC/DC power supply: AC/DC 80-270V
To be completed by SCADA, PLC in a variety of communications software network
Technical Index
Accuracy of measurementvoltage level 0.5, current level 0.5, active power 0.5, reactive power level 0.5,Frequency ±0.02Hz, active electric energy class 0.5s or class 0.2s, reactive energy grade 1 or grade 2, power factor 0.5
Singal inputConnection mode of four phase three wire, three phase three line
 Rated voltage of AC 57.7V, AC 100V, AC 220V, AC 380V
 Over load 1.2 times ( Continued ), 2 times / second ( instantaneous )
 Power <1VA/ phase
 Impedance >300KΩ, current: <20mΩ
 The frequency of 45~65Hz 
Auxiliary power supplyWorking range of AC/DC 80V~270V
 Power consumption   <4VA
Function moduleCommunication interface 1 way RS-485 communication, Modbus-RTU protocol
 Baud rate: 1200~9600bps, the default 2400bps
 Switch input support 4 stem node input
 The switch output support 3 relay output, capacity: AC 250V/5A, DC 30V/5A
 Transmission output support 3 analog output: 0/4~20mA or 0~5/10V
EnvironmentWorking temperature:-10°C ~+55°C
 Storage temperature:-25°C ~+70°C
 Relative humidity is less than 93%, no corrosive gas
SafetyInsulation resistance >100MΩ
 AC withstand voltage AC 2KV
Electromagnetic compatibilityESD level 4
 Electrical fast transient burst level 4
Selcction ofSpecification
Intelligent Digital Three phase Multifunctional Monitoring Meter(9999 display programmable)
Model NO.DisplayFrame size(mm)Hole size(mm)Remark
RH-3D2Specialized LED120*120111*111 
RH-3D3Specialized LED96*9692*92 
RH-3D7Specialized LED80*8076*76 
RH-3D6Specialized LED72*7268*68 
RH-3D8Specialized LED48*4845*45 
Extended Modules:
AC/DC power supply(switching power supply)$4
AO: $7 more for each stem node
DI: $4 more for each stem node
DO:$4 more for each stem node
“*” means unconventional products of our corporation 
Order notes: Please write clearly the requested types, input signal and the functional modules, etc when purchasing.
Others: Factory default settings (Use default setting if no instruction).







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Company Information

Frequently Asked Questions of Our Customers:

Q: What are we doing?
A: Renhe Electrical manufacturer here, specialized in DIGITAL PANEL METER (A V Hz Cos W Var Kwh Varh) for 12 years.

Q: What’s the advantage compared to other suppliers?
A: Competitive price with high quality of product and superior service. We have professional sales team, production team, researching team.

Q:How is our customer service?
A: all our sales representatives can speak fluent English, some speak French. They will answer all of your questions in 24 hours.

Q:What others can we offer?
A: Based on the wide product range, we offer the best One-Stop sourcing service. We will definitely save you a lot of time and money, and based on our huge quantity of shipment, we can get the best shipping service from the best forwarders. This will also help you to save a lot on the shipment.

Q:What is the MOQ of our products?
A:The MOQ for digital panel meter is 100 set.

Q:What is the payment of our company?
A. DP DA T/T L/C O/A is acceptable for us.

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