OB2750 kWh Meter Pulse and Modbus RTU

OB2750 kWh Meter Pulse and Modbus RTU

OB2750 kWh Meter Pulse and Modbus RTU

  • Din 96x96mm
  • Accuracy better than class1
  • Dual pulsed output
  • RS485 Modbus RTU output
  • Backlit LCD display
  • Easy set up and installation
Availability: In stock
OB2750 kWh Meter Pulse and Modbus RTU is available to buy in increments of 1


Smart power meter with RS485 Modbus RTU.
Pulse/rs485 communication RTU Modbus
high accuracy

  • 96×96 Standard Format
  • CI.1 Accuracy (EN50470)
  • Energy consumption LED
  • current reverse LED
  • Phase L1/L2/L3 LED
  • Isolate pulse output and IR (DIN43864)
  • LCD display, 6 integer 1 decimal
  • Large clear backlight display
  • 27 CT rate can be selected
  • Memory back-up (EEprom)
  • Communication
  •  RS485port
  •  Baud rate: 1200bps~9600bps
  • Modbus-RTU protocol 

 Voltage Inputs

      20-280 Volts Line to Neutral, 20-480 Volts Line to Line

      Universal Voltage Input

      Input Withstand Capability – Meets IEEE C37.90.1 (Surge Withstand Capability)

     Supports: 3 phase 4 wires, 400/230V, 110/63V,208/120V

     Input wire gauge max (AWG 12 / 2.5mm2)


Current Inputs

    Class: (0 to 6) A, 5 Amp Nominal

    Fault Current Withstand: 100 Amps for 10 Seconds, 360 Amps for 3 Seconds, 600 Amps for 1 Second.

    Programmable Current to 27 CT Ratio

    Burden 0.005VA per phase Max at 11Amps

    5mA Pickup Current

    Pass through wire gauge dimension: 0.177" / 4.5mm

    Continuous current withstand: 20 amps for screw terminated or pass through current connections



    All Inputs and Outputs are galvanic ally isolated to 4000 Volts AC.


Environmental Rating

     Storage: (-25 to +70)° C

     Operating: (-10 to +65)° C

     Humidity: to 75% RH Non-Condensing

     Faceplate Rating: NEMA12 (Water Resistant)

     Environment: IP54 standard, IP65 optional

     Mounting Gasket Included


Power Supply

    161 to 300 Volts AC


Communication Format

      1 Com Ports

     RS485 Port (Through Back Plate)

     Com Port Baud Rate: (1200 to 9600bps)

     Com Port Address: 0-247

     8 Bit, Even parity

     Modbus RTU Protocols


Pulse output

      Pulse constant: 1600imp/kWh

     Pulse width: 80ms±20ms

More Information
ManufacturerOwen Brothers
In Depth Display Type: Digital Only Phase: Three Phase Measuring Energy Range: 999999.9 Accuracy Class: Better than Class1.0 Output Voltage: 3*220/380V, 3*230/400V Operating Temperature: -25 to 75 Dimensions: 96*96 Certification: CE Communication: modbus RTU
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