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Established in 2000, Zhejiang Yongtailong Electronic Co., Ltd. is located in the center of Shanghai, Hangzhou and Suzhou cities. YTL is a professional China DEM3K302 Three-Phase CT-Operated MID DIN-Rail Energy Meter Suppliers and DEM3K302 Three-Phase CT-Operated MID DIN-Rail Energy Meter Company. With more than 20 years of energy metering experience, we devote ourselves to providing competitive projects and creating value for customers. YTL was one of the first companies in the domestic market with which had an internal R&D department as well as international sales business. Since our foundation in 2000 we have grown to a manufacturer which complies and meet to many specifications from our national and international partners. At present our export volume makes us a leading company for technology and product export to more than 50 countries throughout the world. With provincial high-tech enterprise R&D center, YTL is the Top 100-enterprise with most investment value in Zhejiang. And“Yongtailong”is the famous brand of Zhejiang. For any new products of customers, we will communicate with customers very professionally, listen to their opinions and give useful suggestions to ensure that excellent quality products are made.
DEM3K302 Three-Phase CT-Operated MID DIN-Rail Energy Meter Suppliers
DEM3K302 Three-Phase CT-Operated MID DIN-Rail Energy Meter
Fast RS485 data updates for PV, BESS, EV charging and industrial energy monitoring projects.Confirm the CT ratio and communication configuration before selection.
Selected variants support Modbus RTU and DL/T 645-2007 communication.
The documented ≤75 ms value refers to RS485 communication response time only; it is not waveform sampling frequency or total system control-loop latency.
- Communication parameters
- Functional parameters
- Generic parameters
- Dimension drawings
- wiring diagram
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Mode of communication
RS485
Protocol
RS485 is compatible with Modbus RTU, DLT/645-2007
Type of communication
Two-way
RS485 connection type
RS485 configuration parameters
Modbus address (1 to 247)
Baudrate (9.6/19.2/38.4/57.6/76.8/115.2 KBPS) ）Parity (none/odd/even)
Refresh time
≤100ms
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Measurement function
Monitor electrical energy consumption, major electrical variables (including active and reactive power, power factor) and calculate current/voltage harmonics including Depending on the amount of electricity
Measurement method
Forward and reverse measurement, net two-way, first remember single-phase and then calculate, and then respectively into kwh +-, absolute value measurement
Tariff
Default 4 tariffs, 8 time periods
Self-diagnosis
Store self-diagnosis
Event alarm
Over-current, high temperature, magnetic field detection, low battery power, etc.
Firmware upgrade
Local update
Clock
Automatic network time calibration, temperature compensation
Other functions
Wiring CHECK
Screen Saver function
Page filters
runtime hour counter -
LCD display
6+2
LCD refresh time
1S
LED
Red Pulse Light
Keys
Paging, setting
IP level
IP20
Level of protection
Class II protection
Rated pulse voltage
6kV
Installation method
Guide Rail Type (3P)
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Welcome To A National High-tech Enterprise
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2000
Established In
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500+
Employees
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60+
Export Country
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500+
Design Right Patent
YTL Honor
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MID
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YTL News
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Single Phase vs Three Phase Electric Meters: Technical Differences, Architecture, and Selection Guide
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Electrical Power Monitoring System: What It Is, Why It Matters, and How to Choose
2026-08-21At 2:00 a.m., a factory's packaging line stops without warning. The shift supervisor checks the main panel, sees no tripped breaker, and has no record of what ...
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What Is a DC Smart Meter? Working Principle, Applications & Selection Guide
2026-08-14What Is a DC Smart Meter? Open the DC cabinet of a solar plant, a battery storage unit, or a fast electric vehicle charger, and the metering question becomes o...
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BESS Metering Commissioning: A Boundary-to-Handover Checklist for Substation Projects
2026-08-111. Start with the handover question, not the device list At a substation BESS, teams can have plenty of data and still be unable to answer a basic operating que...
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China DEM3K302 Three-Phase CT-Operated MID DIN-Rail Energy Meter Company