The Siemens 7KT0310 is a SMART 7KT multifunction power monitoring meter designed for monitoring standard electrical parameters in industrial and commercial power systems. It features a graphical LCD display, integrated Modbus RTU communication through RS485, True RMS measurement, 1 A or 5 A CT inputs, and Class 1 active-energy accuracy according to IEC 62053-21.
The meter is designed for 96 × 96 mm flush panel mounting and can measure voltage, current, active/reactive/apparent power, power factor, frequency, energy, demand and harmonic distortion.
The 7KT0310 belongs to the Siemens SMART 7KT multifunction meter range. It combines local electrical parameter display with communication capabilities, making it suitable for applications where operators need both front-panel monitoring and remote data collection.
The graphical LCD provides an easy-to-read interface for monitoring measured values, while the integrated RS485 interface allows the meter to communicate with compatible PLCs, HMIs, SCADA systems and energy-management systems using Modbus RTU.
The 7KT0310 provides Class 1 accuracy for active-energy measurement in accordance with IEC 62053-21. Siemens documentation also specifies voltage and current measurement accuracy of approximately 0.5% of full scale.
This makes the meter suitable for electrical monitoring applications where dependable measurement of energy and operating parameters is required.
One of the main features of the 7KT0310 is its built-in Modbus RTU communication.
The meter uses an integrated RS485 interface and supports:
Modbus RTU protocol
Communication addresses from 1 to 255
Half-duplex transmission
Float and integer data formats
Baud rates from 300 to 19,200 bps
None, odd or even parity
1 or 2 stop bits
Communication distance up to approximately 500 m
This enables electrical data to be transferred to compatible monitoring and automation systems.
The 7KT0310 uses a 60 × 60 mm LCD display with graphical current-loading indication. It has a white display background and four operating keys for navigating measured parameters and configuration settings.
The backlight can also be configured for time-controlled reduction, helping balance readability and energy consumption.
The meter can measure and display a wide range of electrical parameters, including:
Phase voltage
Line-to-line voltage
Phase current
Neutral current
Frequency
Power factor
Active power
Reactive power
Apparent power
Active energy
Reactive energy
Apparent energy
Maximum demand
Minimum or maximum power-related values
Voltage THD
Current THD
Individual voltage and current harmonic values can also be accessed through communication registers.
The 7KT0310 uses True RMS measurement for voltage and current. Siemens specifies measurement of both sinusoidal and distorted waveforms, with automatic frequency detection over the applicable operating range.
True RMS measurement is particularly useful in industrial systems where variable-frequency drives, electronic power supplies, converters and other nonlinear loads can produce waveform distortion.
The meter accepts 1 A or 5 A current-transformer secondary inputs.
The CT primary ratio can be configured according to the installed current transformer, allowing the meter to be used across a wide range of load-current applications. Siemens documentation supports programmable CT values extending to high primary-current measurement applications.
This makes the 7KT0310 suitable for applications ranging from individual feeders to larger industrial distribution systems.
The 7KT0310 is designed for electrical voltage measurement in compatible low-voltage systems and supports both line-to-neutral and line-to-line measurements.
The device can be configured for different network arrangements, making it suitable for various industrial and commercial distribution applications.
The meter provides measurement of:
Phase active power
Phase reactive power
Phase apparent power
Total active power
Total reactive power
Total apparent power
Power factor
These values can be viewed locally on the LCD or accessed remotely through Modbus communication.
The 7KT0310 supports measurement of active, reactive and apparent energy.
Through the communication interface, the meter provides energy information including imported, exported and total energy values.
This makes the meter suitable for energy-consumption monitoring, feeder-level analysis and integration into energy-management systems.
The meter measures phase-wise and average power factor along with system frequency.
These parameters help operators evaluate electrical loading and identify changes in system operating conditions.
The 7KT0310 supports total harmonic distortion measurement for both voltage and current.
Individual voltage and current harmonic values are also available through Modbus communication. Siemens documentation provides communication registers for individual harmonics.
This makes the meter useful for monitoring power-quality conditions in installations containing nonlinear electrical loads.
The meter can monitor maximum demand values for current and power parameters.
Demand monitoring can help users understand peak loading conditions and support electrical-system load analysis. The measured demand parameters are also available through the communication interface.
The 7KT0310 includes an integrated digital input that can be used for monitoring an external status signal.
This can be useful for applications such as breaker-status monitoring or other simple equipment-state indication within an electrical monitoring system.
The meter uses a 96 × 96 mm panel format, making it suitable for standard multifunction-meter installations.
Siemens documentation specifies a panel cut-out of approximately 91.5 × 91.5 mm, with a device depth of approximately 55 mm.
Its flush panel-door mounting arrangement makes it suitable for:
PCC panels
MCC panels
Distribution boards
Electrical switchboards
Industrial control panels
Energy-monitoring panels
The 7KT0310 provides IP65 protection on the front when correctly installed in the panel, while the rear terminal area is specified at IP20.
This makes it suitable for enclosed electrical-panel installations where enhanced front-side protection is required.
The meter supports several electrical system configurations, including:
Three-phase four-wire
Three-phase three-wire
Single-phase two-wire configurations
This flexibility allows the same meter family to be used in different types of electrical distribution systems.
The Siemens 7KT0310 can be used for:
Industrial power monitoring
Main distribution panels
MCC and PCC panels
Factory electrical systems
Generator monitoring
Feeder monitoring
Energy consumption monitoring
Electrical switchboards
Building electrical systems
Power-quality observation
Modbus-based energy-management systems
Machine and process monitoring
With its integrated Modbus RTU over RS485, the 7KT0310 can form part of a wider electrical-monitoring system.
Measured voltage, current, power, energy, frequency, power factor and other parameters can be read by compatible supervisory and automation systems, helping reduce the need for separate communication modules.
The meter is suitable for energy-management applications where users need visibility of electrical consumption across multiple feeders or distribution points.
The combination of:
Measurement → LCD display → Modbus communication → Central monitoring
makes it suitable for modern industrial energy-monitoring architectures.
The 7KT0310 and 7KT0311 are both SMART 7KT multifunction meters with graphical LCD displays and Modbus RTU communication. The key distinction is accuracy: the 7KT0310 is Class 1, while the 7KT0311 is the higher-accuracy Class 0.5s model.
This makes the 7KT0310 a practical choice where Class 1 active-energy accuracy is appropriate.
Unlike simple panel meters that display only voltage or current, the 7KT0310 combines several electrical measurement functions in one instrument.
It can monitor voltage, current, power, energy, power factor, frequency, demand and THD, while also providing Modbus communication.
The 7KT0310 can be used as a replacement or new installation meter where the application requires a Class 1 multifunction power meter with graphical LCD and integrated Modbus RTU.
Before selection, verify:
Electrical network configuration
CT secondary rating
CT ratio
Auxiliary supply
Panel cut-out
Communication requirements
Required measurement accuracy
The Siemens 7KT0310 is relevant for:
Electrical panel builders
Industrial buyers
Energy-management professionals
Electrical contractors
Machine builders
Maintenance departments
OEMs
Factory electrical teams
System integrators
Electrical product dealers
For SB Smart, the product is positioned around industrial electrical measurement, energy monitoring and procurement.
Siemens SMART 7KT multifunction meter
Article number 7KT0310
Class 1 active-energy accuracy
Graphical LCD display
Integrated Modbus RTU
Integrated RS485 communication
1 A / 5 A CT secondary input
True RMS voltage and current measurement
Active, reactive and apparent power measurement
Active, reactive and apparent energy measurement
Power-factor and frequency measurement
Voltage and current THD measurement
Individual harmonics available through communication
Maximum-demand monitoring
96 × 96 mm panel format
IP65 front protection
Multifunction monitoring: Replaces several individual measuring instruments with one panel meter.
Class 1 accuracy: Provides dependable active-energy measurement for suitable monitoring applications.
Modbus RTU: Allows direct integration with compatible PLC, SCADA and energy-management systems.
Graphical LCD: Provides clear local viewing of measured electrical values.
True RMS measurement: Suitable for electrical systems with waveform distortion.
1 A/5 A CT compatibility: Supports common industrial current-transformer secondary ratings.
THD monitoring: Provides additional visibility into voltage and current distortion.
Demand monitoring: Helps identify peak electrical loading.
Compact panel format: Fits standard 96 × 96 mm meter installations.
Integrated communication: Reduces the requirement for separate communication hardware.
The Siemens 7KT0310 combines Class 1 multifunction electrical measurement, graphical LCD indication and integrated Modbus RTU communication in a standard 96 × 96 mm panel instrument. It supports monitoring of voltage, current, power, energy, power factor, frequency, demand and harmonic distortion.
It is suitable for customers looking to buy or source Siemens SMART 7KT multifunction meters for industrial control panels, PCC/MCC panels, energy monitoring, feeder monitoring and Modbus-based automation systems.
For SB Smart, this product is best presented as a Siemens industrial multifunction power monitoring meter for panel mounting, energy monitoring and procurement across India.
SB Smart supplies Siemens industrial electrical products, multifunction meters and power-monitoring devices across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.
Major delivery locations include:
Faridabad
Delhi
Gurgaon/Gurugram
Delhi NCR
Noida
Greater Noida
Haryana
Punjab
Mumbai
Pune
Ahmedabad
Bengaluru
Hyderabad
Chennai
Kolkata
Jaipur
Chandigarh
Lucknow
Indore
Surat
Vadodara
Nagpur
Coimbatore
And other major cities across India
The 7KT0310 is a Siemens SMART 7KT multifunction power monitoring meter with a graphical LCD display, Class 1 active-energy accuracy and integrated Modbus RTU communication.
It uses Modbus RTU through an integrated RS485 interface.
The meter provides Class 1 active-energy accuracy according to IEC 62053-21.
It has a graphical LCD display with a 60 × 60 mm display area.
The meter supports 1 A or 5 A CT secondary inputs.
It can measure voltage, current, active power, reactive power, apparent power, power factor, frequency, active/reactive/apparent energy, demand and THD.
Yes. It provides voltage and current THD measurement, while individual harmonics can be accessed through Modbus communication.
The meter has a 96 × 96 mm front format with approximately 91.5 × 91.5 mm panel cut-out.
The front protection is IP65, while the terminal side is IP20.
7KT0310: Class 1 multifunction meter.
7KT0311: Higher-accuracy Class 0.5s multifunction meter.
Yes. Its integrated Modbus RTU/RS485 interface allows compatible SCADA, PLC, HMI and energy-management systems to read the meter's communication data.
SB Smart supplies Siemens SMART 7KT multifunction meters and industrial electrical monitoring products in India for panel builders, industrial buyers, system integrators, maintenance teams and replacement procurement.
| Parameter | Details |
|---|---|
| Product Series | Siemens SMART 7KT |
| Model | 7KT0310 |
| Type | Multi-function Power Meter |
| Measurements | V, A, kW, kVA, kVAR, kWh, PF, Hz |
| Display | LCD graphical |
| Accuracy | Class 1 |
| Input | CT 1A / 5A |
| Communication | RS485 Modbus RTU |
| Mounting | Panel (96×96) |
| Application | Industrial energy monitoring |
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