Q: Specification

Input (accuracy range) Un 28V to 330V L-N (48V to 570V L-L)Burden Input (working range) Voltage and Current 1.7% - 100% Overload 800V L-L indefinitely,In x 4 for 1 sec Accuracy (8.4% - 100% of range) Voltage 0.5% +/- 2 digitsCurrent 0.5% +/- 2 digitsPower (W,VAr,VA) 1.0% +/- 2 digitsPower Factor 1% of rangeFrequency 0.1 HzEnergy IEC 1036 Class 1 Auxiliary Voltage 100V to 440V ac (45Hz to 65Hz)100V to 420V dcBurden: Display Digits 3 lines 9999Digit size 7mm 7 segmentUpdate time 1 second Relay Solid-State 1-Form-ASwitching 100Vpk @ 120mAOn Resistance InsulationElectromagnetic Compatibility Immunity:ESD IEC 61000-4-2-Level IIIRadiated IEC 61000-4-3-Level IIIFast Transient IEC 61000-4-4-Level IIIImpulse Waves IEC 61000-4-5-Level IIIConducted IEC 61000-4-6-Level IIIVoltage Dips/Short Interruptions IEC 61000-4-11-Level Fast Transient IEC 61000-4-4-Level IIIEmissions:Conducted and Radiated CISPR11-Class A Environment Working Temperature -20 to 70 deg CStorage Temperature -30 to 80 deg CRelative Humidity 0-95% non condensingShock 30G in 2 planes Enclosure Standard DIN case 96 x 96 x 60mmPanel mounting 4 retaining clipsCutout 92.8mm x 92.8mmIP Rating - Front IP52 / NemaIP Rating - Case IP30 / Nema

Question 1

M880 LCD

Accepted Answer

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.

Question 2

Specification

Accepted Answer

Input (accuracy range)Un 28V to 330V L-N (48V to 570V L-L)Burden < 0.5VAIn (5A specified) 0.5A to 6A via CTIn (1A specified) 0.1A to 1.2A via CTBurden < 0.5VAFrequency 45Hz to 65HzSecondary of CTs must be connected to earthInput (working range)Voltage and Current 1.7% - 100%Overload800V L-L indefinitely,In x 4 for 1 secAccuracy (8.4% - 100% of range)Voltage 0.5% +/- 2 digitsCurrent 0.5% +/- 2 digitsPower (W,VAr,VA) 1.0% +/- 2 digitsPower Factor 1% of rangeFrequency 0.1 HzEnergy IEC 1036 Class 1Auxiliary Voltage100V to 440V ac (45Hz to 65Hz)100V to 420V dcBurden: < 10VADisplayDigits 3 lines 9999Digit size 7mm 7 segmentUpdate time 1 secondRelaySolid-State 1-Form-ASwitching 100Vpk @ 120mAOn Resistance < 8 ohmsnstallation Category III (480V ph/ph)Degree of Pollution 2Rated Impulse Voltage IEC 60947-1-V imp 4kVMeter Front Class IIElectrical Security IEC 61010-1InsulationElectromagnetic CompatibilityImmunity:ESD IEC 61000-4-2-Level IIIRadiated IEC 61000-4-3-Level IIIFast Transient IEC 61000-4-4-Level IIIImpulse Waves IEC 61000-4-5-Level IIIConducted IEC 61000-4-6-Level IIIVoltage Dips/Short Interruptions IEC 61000-4-11-Level Fast Transient IEC 61000-4-4-Level IIIEmissions:Conducted and Radiated CISPR11-Class AEnvironmentWorking Temperature -20 to 70 deg CStorage Temperature -30 to 80 deg CRelative Humidity 0-95% non condensingShock 30G in 2 planesEnclosureStandard DIN case 96 x 96 x 60mmPanel mounting 4 retaining clipsCutout 92.8mm x 92.8mmIP Rating - Front IP52 / NemaIP Rating - Case IP30 / Nema