HOBUT M850 LCD Digital Power Meter, 92mm x 92mm, 4-Digits, 3 Phase

  • RS Stock No. 914-5281
  • Mfr. Part No. M850-LTHN-RS-PO
  • Manufacturer HOBUT
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

M850-LTHN Power Meter

The M850-LTHN is a digital Power Meter that features a 96 x 96 mm moulded case and the choice of three selectable colour backlight LCD screens. The power meter is easy to use and features user-programmable CT & VT ratios. The Unit is configured for 3 Phase/ 4 Wire out of the Box. It also is programmed for other input voltages/ Single Phase.

• Large LCD display
• 3 Selectable colour options (blue, green or white)
• 4 front buttons for programming
• Optional RS485 port allows communication via Modbus RTV or BACNET (MSTP) protocol
• A relay output can be assigned to either W.h or Var.h
• Installation guide supplied or download available of complete installation manual and RS485 Modbus register at www.hobut.co.uk/power-meters

Programmable Functions:

• Selectable screen colour
• Current transformer ratio
• Voltage transformer ratio
• Bd rate, parity, stops
• AC or DC AUX
• Single or 3 phase system
• Input voltage range 28-570 V
• RS485 address, 1-247
• Security code access for programming

Standard 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 Measurement


• Low, medium & high-voltage control panels
• Gensets
• Building management systems
• Power management

Attribute Value
Cutout Height 92mm
Cutout Width 92mm
Display Type LCD
Number of Digits 4
Number of Phases 3
Pulse Output Yes
Depth 80mm
Meter Accuracy 0.1 (Frequency) %, 0.5 (Volts/Amps) %, 1 (Active Power) %, 1 (Apparent Power) %, 1 (Power Factor) %
Minimum Temperature -20°C
Maximum Temperature +70°C
Approvals IEC 1036 Class 1, IEC 60947-1, IEC 61000-4-11, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61010-1
Meter Type Electromechanical
Series M850
Measurement Range 28 → 570V
20 In stock for delivery within 2 working days
Unit of sale: Each
(exc. VAT)
(inc. VAT)
Per unit
1 +
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