HOBUT M850 3 Phase LCD Digital Power Meter with Pulse Output, 92mm Cutout Height

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

HOBUT Electromechanical Digital Power Meter

The HOBUT M850 series electromechanical digital power meter allows measuring voltage with measuring range between 28V and 570V. The meter features a 96x96mm moulded case and the choice of three selectable colour backlight LCD screens. The power meter is easy to use and features user-programmable CT and 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.
Programmable Functions:
Selectable screen colour
Current transformer ratio
Voltage transformer ratio
Bd rate, parity, stop
Single or 3 phase system
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

Features and Benefits

4 front buttons for programming
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
Large LCD display
Optional RS485 port allows communication via Modbus RTV or BACNET (MSTP) protocol
Meter accuracy is 0.1 (Frequency) %, 0.5 (Volts/Amps) %, 1 (Active Power) %, 1 (Apparent Power) %, 1 (Power Factor) %


Building management systems
Low, medium and high-voltage control panels
Power management


ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007
CE certified

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
Meter Type Electromechanical
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
Measurement Range 28 → 570V
Series M850
15 In stock for delivery within 6 working days
Price (VAT excluded) Each
Was TWD4,583.00
TWD 4,449.00
(exc. GST)
TWD 4,671.00
(inc. GST)
Per unit
1 +