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Siemens 7KT0311

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Siemens 7KT0311

Power Monitoring Device Panel instrument for std electrical values Protocol: Modbus RTU LCD display Vaux: 95V to 240V AC x/1 or 5 A, Class 0.5

SiemensMFR # 7KT0311SKU # YLSZ6B35RLZEP
for voltage measurementTrue RMS
for current measurementTrue RMS
type of measured value detectioncomplete
voltage curveSinusoidal or distorted
initial value45 Hz
full-scale value65 Hz
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About This Product

Power Monitoring Device Panel instrument for std electrical values Protocol: Modbus RTU LCD display Vaux: 95V to 240V AC x/1 or 5 A, Class 0.5

Siemens 7KT0311

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Specifications

Measurements
for voltage measurementTrue RMS
for current measurementTrue RMS
type of measured value detectioncomplete
voltage curveSinusoidal or distorted
initial value45 Hz
full-scale value65 Hz
operating mode for measured value detection automatic line frequency detectionYes
Supply voltage
design of the power supplySMPS power supply
type of voltage of the supply voltageAC
Degree of protection protection class
protection class IP on the frontIP65
protection class IP of the terminalIP20
Suitability
suitability for operationInstallation in stationary panels in closed rooms
Product Functions
voltage measurementYes
current measurementYes
active power measurementYes
reactive power measurementYes
power factor measurementYes
frequency measurementYes
apparent energy/active energy/reactive energyYes
Display and operation
design of the displayLCD
height of the display60 mm
width of the display60 mm
color of the background of the displayWhite
illuminance of display backlight adjustableNo
time-controlled reduction of the illuminance of display backlight possibleYes
display contrast adjustableNo
national language on the display screen is supportedEN
number of keys4
Communication
transfer rate minimum0.3 kbit/s
transfer rate maximum19.2 kbit/s
Fault limits
reference condition for metering accuracyaccording to IEC61557-12, IEC62053-21, IEC62053-23
for measured variable voltageClass 0.5 acc. to IEC 61557-12
for measured variable currentClass 0.5 acc. to IEC 61557-12
for measured variable apparent powerClass 1 as per IEC 61557-12
for measured variable active powerClass 1 acc. to IEC 61557-12
for measured variable reactive powerClass 2 as per IEC 61557-12
for measured variable output factorClass 1 as per IEC 61557-12
for measured variable active energyClass 0.5 acc. to IEC 61557-12 and IEC 62053-21
for measured variable reactive energyClass 2 as per IEC 61557-12 and IEC 62053-23
for measured variable THDClass 3 as per IEC 61557-12
Inputs Outputs
number of digital inputs1
type of electrical connection at the digital inputsscrew-type terminals
operating conditions for digital inputs external voltage supplyYes
input voltage at digital input at DC maximum30 V
input current at digital input initial value for signal<1>-recognition10 mA
number of digital outputs1
type of switching outputUnidirectional
digital output versionSwitching or pulse output function
operating voltage as output voltage at DC maximum permissible30 V
type of electrical connection at the digital outputsscrew-type terminals
output current at the digital outputs at DC limited to 100 ms maximum130 mA
internal resistance at the digital outputs55 Ω
standard for pulse emitteraccording to IEC62053-31
initial value100 ms
full-scale value2 000 ms
adjustable time period minimum100 ms
switching frequency at digital output maximum17 Hz
Measuring inputs
measurable supply voltage between (PE)N and L at AC maximum rated value240 V
minimum11 V
maximum300 V
measurable supply voltage between the line conductors at AC maximum rated value415 V
minimum19 V
maximum519 V
voltage measuring range extension with external voltage transformersYes
line conductors and neutral conductors internal resistance for voltage measurement1.12 MΩ
measuring category for voltage measurementCAT III
1 at AC rated value1 A
2 at AC rated value5 A
minimum1 %
maximum120 %
current measuring range extension with external current transformersYes
apparent power consumption for current measurement with measuring range 5 A per phase3 V·A
measuring category for current measurementCAT III
Connections
at the measurement inputs for voltagescrew-type terminals
at the measurement inputs for currentscrew-type terminals
Mechanical Design
fastening method DIN-rail mountingNo
size of Power Monitoring Devicesize 96
height96 mm
width96 mm
depth57 mm
installation depth52.3 mm
cutout height92 mm
cutout width92 mm
mounting positionVertical
Environmental conditions
minimum-10 °C
maximum55 °C
minimum-20 °C
maximum75 °C
relative humidity at 25 °C without condensation during operation maximum85 %
installation altitude at height above sea level maximum2 000 m
degree of pollution2

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