01423 340 000

Hobut M850-LTHN RS-PO 96x96 panel mount 5A CT Connetced Multi-function meter with Pulse and Modbus RS485

  • Accuracy: Class 1
  • Maximum Demand 
  • Modbus RS485 output
  • Pulsed output
  • THD Voltage and Current
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Product Details

Camax are now supplying the new range of Hobut feature rich power meters including: Moulded cases and selectable three colour back-light LCD screens. 

The range is easy to use, features user-programmable CT & VT ratios, and can be used on any Single or 3 Phase system with any input voltage without re-programming.

Programmable functions: Phase Voltage (V), Phase to Neutral Voltage (V), Phase Current (I), Frequency (Hz), Active Power (W), Active Energy (kWh), Reactive Power (VAr), Apparent Power (VA), Reactive Energy (VArh), Power Factor (PF), Instantaneous Amp Demand, Instantaneous Watt Demand, Instantaneous VA Demand, Maximum Amp Demand, Maximum Watt Demand, Maximum VA Demand, Neutral Current, THD Current, THD Voltage

Product Specification


  • Volts/Amps: 0.5% of reading
  • Frequency: 0.1 Hz
  • Active Power: 1% of reading
  • Apparent Power: 1% of reading
  • Power Factor: 1% of range
  • Energy: IEC 1036 Class 1


  • Rated Un: 28-330V LN, 48-570V L-L
  • Overload: 800V continuous
  • Burden: 0.5VA per phase
  • Rated In: 0.5-6A (5A nominal)
  • Overload: 10 In for 1 sec
  • Burden: 0.5VA per phase
  • Auxiliary: 100-440V AC / 100-420V DC (or 10/70V DC)
  • Frequency: 45/65Hz


  • Digits: 4 lines 9999
  • Custom LCD
  • Brightness: User adjustable


  • Wh or VArh: SPNO rated 50V
  • Pulse output: 150mA 5W AC/DC
  • Pulse duration: Programmable from 40msec-200msec


  • Installation category: III (480 V AC ph/ph)
  • Degree of pollution: 2
  • Rated impulse withstand voltage: IEC 60947-1-V imp: 4kV
  • Meters front: Class II
  • Electrical security: IEC 61010-1
  • Inputs + Aux to case: 4kV rms 50Hz for 1 min
  • Inputs + Aux to RS485 port: 3kV rms 50Hz for 1 min
  • Inputs + Aux to relay output: 1k5V rms 50Hz for 1 min
  • Low voltage dc Aux to Inputs: 1k5V rms 50Hz for 1 min


  • Immunity to: electro-static discharges: IEC 61000-4-2-Level III radiated radio-Hz fields: IEC 61000-4-3-Level III electrical fast transient/brusts: IEC 61000-4-4-Level III
  • Impulse waves: IEC 61000-4-5-Level III
  • Conducted disturbances: IEC 61000-4-6-Level III
  • Voltage dips & short interruptions: IEC 61000-4-11
  • Emissions to: conducted and radiated: CISPR11-Class A


  • Working temp: -20 to +70ºC
  • Storage temp: -40 to +85ºC
  • Relative humidity: 0-95% non condensing
  • Shock: 30G in 2 planes


  • Black polycarbonate case to UL94V0
  • Weight: 0.3kg
  • IP Rating: IP52 (front)

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