MultiRail Meter


MultiRail M880

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M880 LCD

MultiRail M880 is a low cost DIN rail-mounted, three phase power meter.

It measures line Voltages, line Currents and line Powers, Neutral Current, System Frequency, System W, A and VA Demands, System W, A and VA Maximum Demands, System Active Power, System Reactive Power, System Apparent Power, System Active Energy, System Reactive Energy and System Power Factor.

It features a 100V-400V ac/dc power supply input, seven colour LCD backlight, pulsed outputs and an RS485 port using a subset of Modicon's Modbus protocol.

The integrated solid-state relay can have up to 8 conditions attached to it creating a very flexible monitoring system.


Input (accuracy range)
Un 28V to 330V L-N (48V to 570V L-L)
Burden < 0.5VA
In (5A specified) 0.5A to 6A via CT
In (1A specified) 0.1A to 1.2A via CT
Burden < 0.5VA
Frequency 45Hz to 65Hz
Secondary of CTs must be connected to earth

Input (working range)
Voltage and Current 1.7% - 100%

800V L-L indefinitely,
In x 4 for 1 sec

Accuracy (8.4% - 100% of range)
Voltage 0.5% +/- 2 digits
Current 0.5% +/- 2 digits
Power (W,VAr,VA) 1.0% +/- 2 digits
Power Factor 1% of range
Frequency 0.1 Hz
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 7mm 7 segment
Update time 1 second

Solid-State 1-Form-A
Switching 100Vpk @ 120mA
On Resistance < 8 ohms

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

InsulationElectromagnetic 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 Fast Transient IEC 61000-4-4-Level III
Conducted and Radiated CISPR11-Class A


Working Temperature -20 to 70 deg C
Storage Temperature -30 to 80 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