M-3305 is Three phase four wire smart meter,this electricity smart meter is equipped with one top- settled G3-PLC/ GPRS/4G/Wi-SUN replaceable remote communication module.It is a high-performance, multifunctional smart meter suitable for use in power network environments that require remote control and management.
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The M-3305 DLMS Multi-function Smart Meter is a high-performance Three Phase Four Wire Smart Electricity Meter engineered for modern power network environments requiring professional remote control and centralized management. Equipped with a top-settled, replaceable remote communication module supporting G3-PLC/GPRS/4G/Wi-SUN, this meter realizes seamless data transmission and command interaction based on the DLMS/COSEM Protocol, the global standard for energy metering communication. Compliant with IEC 62053, IEC 62056 and other international standards, it accurately measures all key electrical parameters of three-phase four-wire circuits and integrates multiple functions such as power quality monitoring, load control and anti-theft of electricity. Designed for ToB customers including power supply enterprises, industrial parks and commercial property managers, it greatly improves the efficiency of power management, remote meter reading and fault diagnosis, and is the core equipment for building intelligent power grids.

The meter provides high-precision measurement of import/export active/reactive energy, instantaneous phase voltage/current, active/reactive/apparent power and power factor, adapting to complex and variable industrial and commercial power network environments. Its stable measurement performance ensures accurate energy settlement and data analysis for large power consumers.
It supports multi-channel communication all complying with DLMS/COSEM Protocol, including IEC62056-21 compliant optical port, RS485 and M-Bus wired interfaces, and replaceable G3-PLC/GPRS/4G/Wi-SUN wireless module. The protocol supports data encryption and security transmission, ensuring the reliability and confidentiality of remote communication for power management departments.
Through the DLMS/COSEM Protocol, the remote system can obtain real-time measurement data and send control instructions to realize remote meter reading, remote power on/off, load limiting and fault diagnosis. The built-in disconnection relay supports a maximum overload current of 80A and a switching voltage of up to 440VAC, with up to 10,000 stable operations at 230VAC/80A, meeting the demand for remote load control of high-power equipment.
It supports up to 4 tariff/4 season/4 weekly/8 daily time periods with 8 configurable time intervals per day and 50 special days, realizing flexible time-of-use billing. The built-in power quality log records under voltage, over voltage, current reversal and over power events in real time, helping customers monitor power grid quality and avoid equipment damage caused by abnormal power supply.
The meter is equipped with a full set of tampering detection functions, recording terminal cover removal, strong magnetic interference, current by-pass and other abnormal behaviors in real time. It has up to 3 password-protected access levels, effectively preventing unauthorized operation and electricity theft, and ensuring the security of metering data and equipment operation.
Parameter | Value |
Meter Type | Three Phase Four Wire Smart Meter |
Nominal Voltage Un | 3×220/380V~3×240/415V |
Rated Current | 1(10)A, 5(100)A |
Nominal Frequency fn | 50Hz/60Hz, ±2% |
Meter Constant | 1000imp/kWh, 1000imp/kvarh |
Operating Temperature Range | -25℃~+60℃ |
Extreme Operating Temperature Range | -40℃~+70℃ |
Relative Humidity | Up to 95% non-condensing |
Installation | 35mm standard Din-rail |
Widely used in factories, power plants and industrial parks, it is suitable for metering and remote control of high-power production equipment, realizing centralized management of industrial power consumption and optimal allocation of power resources.
Applied in shopping malls, supermarkets, high-rise office buildings and other commercial places, it accurately measures the power consumption of air conditioning, elevators and other public equipment, and supports TOU tariff billing to reduce the operation cost of commercial properties.
For large villas and luxury residences, it is specially used for metering high-power electrical equipment such as central air conditioning, swimming pool equipment and bathtubs, meeting the personalized power management needs of high-end residential communities.
Tepsung provides professional OEM and customization services for the M-3305 DLMS Multi-function Smart Meter to meet the personalized needs of global ToB customers. We support the customization of communication modules (single/multi-mode optional), load limiting parameters, TOU tariff time intervals and log capture objects. For bulk orders, we can also customize the meter’s display interface, shell logo and data storage capacity, and provide exclusive firmware development according to the customer’s power management system protocol.
International Standard Certification: All products comply with IEC 62053, IEC 62056 and other international standards, with reliable quality and global market access;
Advanced R&D Capability: Focus on the R&D and production of smart energy metering equipment for many years, with a professional technical team and independent core technology;
Stable Batch Supply: Equipped with large-scale automated production lines, it can meet the bulk order needs of power supply enterprises and large engineering projects;
Perfect After-sales Service: Provide one-stop technical support including product debugging, remote maintenance and on-site training, and establish a global after-sales service network;
High Cost Performance: Based on the industrial chain advantage of Chinese manufacturing, we provide high-quality smart meters at competitive prices, helping customers reduce procurement costs.
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The M-3305 DLMS Multi-function Smart Meter is a high-performance Three Phase Four Wire Smart Electricity Meter engineered for modern power network environments requiring professional remote control and centralized management. Equipped with a top-settled, replaceable remote communication module supporting G3-PLC/GPRS/4G/Wi-SUN, this meter realizes seamless data transmission and command interaction based on the DLMS/COSEM Protocol, the global standard for energy metering communication. Compliant with IEC 62053, IEC 62056 and other international standards, it accurately measures all key electrical parameters of three-phase four-wire circuits and integrates multiple functions such as power quality monitoring, load control and anti-theft of electricity. Designed for ToB customers including power supply enterprises, industrial parks and commercial property managers, it greatly improves the efficiency of power management, remote meter reading and fault diagnosis, and is the core equipment for building intelligent power grids.

The meter provides high-precision measurement of import/export active/reactive energy, instantaneous phase voltage/current, active/reactive/apparent power and power factor, adapting to complex and variable industrial and commercial power network environments. Its stable measurement performance ensures accurate energy settlement and data analysis for large power consumers.
It supports multi-channel communication all complying with DLMS/COSEM Protocol, including IEC62056-21 compliant optical port, RS485 and M-Bus wired interfaces, and replaceable G3-PLC/GPRS/4G/Wi-SUN wireless module. The protocol supports data encryption and security transmission, ensuring the reliability and confidentiality of remote communication for power management departments.
Through the DLMS/COSEM Protocol, the remote system can obtain real-time measurement data and send control instructions to realize remote meter reading, remote power on/off, load limiting and fault diagnosis. The built-in disconnection relay supports a maximum overload current of 80A and a switching voltage of up to 440VAC, with up to 10,000 stable operations at 230VAC/80A, meeting the demand for remote load control of high-power equipment.
It supports up to 4 tariff/4 season/4 weekly/8 daily time periods with 8 configurable time intervals per day and 50 special days, realizing flexible time-of-use billing. The built-in power quality log records under voltage, over voltage, current reversal and over power events in real time, helping customers monitor power grid quality and avoid equipment damage caused by abnormal power supply.
The meter is equipped with a full set of tampering detection functions, recording terminal cover removal, strong magnetic interference, current by-pass and other abnormal behaviors in real time. It has up to 3 password-protected access levels, effectively preventing unauthorized operation and electricity theft, and ensuring the security of metering data and equipment operation.
Parameter | Value |
Meter Type | Three Phase Four Wire Smart Meter |
Nominal Voltage Un | 3×220/380V~3×240/415V |
Rated Current | 1(10)A, 5(100)A |
Nominal Frequency fn | 50Hz/60Hz, ±2% |
Meter Constant | 1000imp/kWh, 1000imp/kvarh |
Operating Temperature Range | -25℃~+60℃ |
Extreme Operating Temperature Range | -40℃~+70℃ |
Relative Humidity | Up to 95% non-condensing |
Installation | 35mm standard Din-rail |
Widely used in factories, power plants and industrial parks, it is suitable for metering and remote control of high-power production equipment, realizing centralized management of industrial power consumption and optimal allocation of power resources.
Applied in shopping malls, supermarkets, high-rise office buildings and other commercial places, it accurately measures the power consumption of air conditioning, elevators and other public equipment, and supports TOU tariff billing to reduce the operation cost of commercial properties.
For large villas and luxury residences, it is specially used for metering high-power electrical equipment such as central air conditioning, swimming pool equipment and bathtubs, meeting the personalized power management needs of high-end residential communities.
Tepsung provides professional OEM and customization services for the M-3305 DLMS Multi-function Smart Meter to meet the personalized needs of global ToB customers. We support the customization of communication modules (single/multi-mode optional), load limiting parameters, TOU tariff time intervals and log capture objects. For bulk orders, we can also customize the meter’s display interface, shell logo and data storage capacity, and provide exclusive firmware development according to the customer’s power management system protocol.
International Standard Certification: All products comply with IEC 62053, IEC 62056 and other international standards, with reliable quality and global market access;
Advanced R&D Capability: Focus on the R&D and production of smart energy metering equipment for many years, with a professional technical team and independent core technology;
Stable Batch Supply: Equipped with large-scale automated production lines, it can meet the bulk order needs of power supply enterprises and large engineering projects;
Perfect After-sales Service: Provide one-stop technical support including product debugging, remote maintenance and on-site training, and establish a global after-sales service network;
High Cost Performance: Based on the industrial chain advantage of Chinese manufacturing, we provide high-quality smart meters at competitive prices, helping customers reduce procurement costs.
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