≤100 ms Communication Refresh
Specified RS485 and Ethernet communication refresh time of ≤100 ms for applications requiring timely meter-side DC data updates.
DC02ND-650M1 650 A Integrated-Shunt DC Energy Meter with RS485 and Ethernet
DC02ND-650M1 is an integrated-shunt DC DIN-rail energy meter rated up to 650 A for DC metering applications such as DC charging piles, photovoltaic power stations and energy storage systems. It supports RS485 and Ethernet communication with Modbus RTU, DL/T 645-2007, HTTP-JSON and HTTP-OCMF protocols. Auxiliary power supply: DC 24–36 V. Designed in accordance with German Eichrecht regulations and OCMF S.A.F.E standard.
Integrated Shunt Design
DC 100–1000 V
MID Certification
MID
650 A Maximum current (Imax)
DC 24–36 V Auxiliary power supply
80 mm DIN-rail width (4.5P)
−40°C to +70°C Operating temperature
Product Highlights
Built for fast, connected DC energy monitoring
Class 1 DC Energy Accuracy
Class 1 energy accuracy in accordance with IEC 62053-41 supports reliable DC energy monitoring and billing applications.
RS485 + Ethernet Dual Communication
RS485 supports Modbus RTU and DL/T 645-2007 protocols. Ethernet supports HTTP-JSON and HTTP-OCMF protocols. Dual communication interfaces provide flexible system integration options.
Multi-Tariff and TOU
Supports 4 tariffs and 8 time periods by default. Daylight saving time is configurable. Automatic network time synchronization with temperature compensation.
Eichrecht / OCMF Compliance
OCMF readings compliant with the S.A.F.E standard. Designed in accordance with German Eichrecht regulations.
Line-Loss Compensation
Line-loss energy compensation with real-time shunt temperature monitoring. Supports remote firmware upgrade for ongoing functional enhancements.
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Explore ApplicationTechnical Specifications
Technical Specifications
| Voltage connection | Direct connection |
| Rated voltage | DC 100 V – 1000 V |
| Voltage tolerance | 0.8 to 1.15 Un |
| Input impedance | 40 MΩ |
| Pulse constant | 1000 imp/kWh |
| Power consumption | ≤2 W (without communication) |
| Current connection | Integrated shunt |
| Current sampling | Shunt sampling |
| Basic current (Ib) | 120 A |
| Minimum current (Imin) | 6 A |
| Maximum current (Imax) | 650 A |
| Starting current (Ist) | 480 mA |
| Voltage accuracy | ±1 % |
| Current accuracy | ±1 % |
| Power accuracy | ±1 % |
| Energy accuracy | Class 1 (IEC 62053-41) |
| Communication interface | RS485 + Ethernet |
| RS485 protocol | Modbus RTU and DL/T 645-2007 |
| Ethernet protocol | HTTP-JSON and HTTP-OCMF |
| Communication type | Bidirectional |
| RS485 connection | 2-wire |
| Network connection | RJ45 |
| RS485 configuration | Modbus address (1 to 247) Baud rate: 9.6 / 19.2 / 38.4 / 57.6 / 76.8 / 115.2 kbps Parity: None / Odd / Even |
| Specified communication refresh time | ≤100 ms |
| LCD display | 8+2 dot-matrix, 1 s refresh, page navigation and setting buttons |
| LED indicators | Green: metering chip normal; Yellow: main+slave chips normal; Red/green alternating: communication abnormal; Steady red: overtemperature, overcurrent or magnetic field warning |
| Metering function | Shunt sampling; measures DC power, current and voltage |
| Metering mode | Absolute-value metering, forward/reverse metering, dual-circuit metering (optional) |
| Tariff function | 4 tariffs and 8 time periods; daylight saving time configurable |
| Self-diagnosis | Storage self-diagnosis |
| Event alarms | Overcurrent, overtemperature, magnetic field detection and low battery |
| Firmware upgrade | Local upgrade and remote upgrade |
| Clock | Automatic network time synchronization with temperature compensation |
| Other functions | Line-loss compensation and real-time shunt temperature monitoring |
| Operating temperature | −40°C to +70°C |
| IP rating | IP20; install in an IP54 outdoor or IP51 indoor enclosure |
| Protection class | Class II |
| Rated impulse withstand voltage | 9.6 kV |
| Installation method | DIN-rail mounting, 4.5P (80 mm) |
| Applicable standards | IEC 62052-11:2020 / IEC 62052-31:2015 / IEC 62053-41:2021 / EN 50470-4 |
Structure & Dimensions
DC02ND-650M1 Dimensions &
Dimensions
Wiring
FAQ
Product FAQ
What is DC02ND-650M1?
DC02ND-650M1 is an integrated-shunt DC DIN-rail energy meter rated up to 650 A for DC metering applications such as DC charging piles, photovoltaic power stations and energy storage systems. It supports RS485 and Ethernet communication with Modbus RTU, DL/T 645-2007, HTTP-JSON and HTTP-OCMF protocols. Auxiliary power supply: DC 24–36 V. Designed in accordance with German Eichrecht regulations and OCMF S.A.F.E standard.
What is the difference between integrated-shunt and external-shunt DC meters?
DC02ND-650M1 adopts an integrated shunt design, combining the shunt and the meter in a single unit for simplified installation. For applications requiring an external shunt with 75 mV sampling, see the DC02NC-S1 series.
What communication protocols does DC02ND-650M1 support?
RS485 supports Modbus RTU and DL/T 645-2007. Ethernet supports HTTP-JSON and HTTP-OCMF protocols. OCMF readings comply with the S.A.F.E standard for German Eichrecht applications.
What tariff functions are available?
4 tariffs and 8 time periods by default. Daylight saving time is configurable. The meter supports automatic network time synchronization with temperature compensation.
What is the operating temperature range?
−40°C to +70°C. Suitable for outdoor installations including DC charging piles exposed to direct sunlight when installed in an appropriately rated enclosure.
Product Downloads
Product Datasheet Download
Datasheet
DC02ND Series Product Datasheet
Official DC02ND series datasheet covering product overview, specifications, wiring and dimensions.
Download PDF- Product overview and features
- Technical specifications
- Wiring diagrams and dimensions
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