DC Power Meter


The M850 is a 96 x 96 mm Din cased, blue or red LED or LCD, DC power meter with the option of RS485 communications and pulsed output.

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Product detail

Input (accuracy range)
Un (options)
80V to 800V dc, 30V to 300V dc, 15V to 150Vdc or 6V to 60V dc
Burden < 0.5VA
In (options)
1A to 10A or mV input (50mV, 60mV or 75mV)
Burden < 0.5VA
Voltage (-) is internally connected to L1 (l)

Un x 1.25 indefinitely
In x 5 for 1 sec

Voltage 0.5% +/- 2 digits
Current 0.5% +/- 2 digits
Power (W,) 1.0% +/- 2 digits
Energy IEC 1036 Class 1

Auxiliary Voltage
100V to 440V ac (45Hz to 65Hz)
100V to 420V dc
Burden: < 10VA

Digits 3 lines 9999
Digit size 14.2mm 7 segment
Update time 1 second

Installation Category III (480V)
Degree of Pollution 2
Rated Impulse Voltage IEC 60947-1-V
imp 4kV
Meter Front Class II
Electrical Security IEC 61010-1

Electromagnetic Compatibility
ESD IEC 61000-4-2-Level III
Radiated IEC 61000-4-3-Level III
Fast Transient IEC 61000-4-4-Level III
Impulse Waves IEC 61000-4-5-Level III
Conducted IEC 61000-4-6-Level III
Voltage Dips/Short Interruptions IEC 61000-4-11-Level II
Conducted and Radiated CISPR11-Class A

Working Temperature 0 to 60 deg C
Storage Temperature -40 to 85 deg C
Relative Humidity 0-95% non condensing
Shock 30G in 2 planes

Standard DIN case 96 x 96 x 60mm
Panel mounting 4 retaining clips
Cutout 92.8mm x 92.8mm
IP Rating – Front IP52 / Nema
IP Rating – Case IP30 / Nema

Plug-in RS485 module (Modbus)
Plug-in relay module (W.h VAr.h)
19V-69V d.c. Auxiliary

MIT Maximize Integrated Technology Co.,Ltd.

MIT Maximize Integrated Technology Co.,Ltd. is a global leader in power quality, industrial automation and power control product and service solutions. Products include circuit breakers, switchgear, UPS and DC power systems, power distribution units, motor controls, meters, sensors, relays and inverters. The principal markets for the Electrical Sector are industrial, institutional, government, utility, commercial, residential, information technology, telecommunications and original equipment manufacturer customers.