Three-phase electric energy meter EM619025

DIN railRS-485with built-in communication

Product Introduction
The EM619025 is a bi-directional DC energy meter for commercial and industrial applications. It measures DC voltages from 100~1000V and is available in primary current variants to cover 200A, 400A and 650A systems. The meter provides RS485 and Ethernet communications and supports Modbus, HTTP-JSON and OCMF protocols. It is certified for legal billing under MID and PTB Eichrecht standards, suitable for EV fast charging, solar PV and BESS invoicing.

Core Features & Technical Advantages

• Wide measurement range (bi-directional): Models for 200A / 400A / 650A; measures 100~1000V DC and records both charge and discharge flows.
• IoT connectivity & protocols: Dual interfaces (RS485, Ethernet). Supports Modbus RTU and DLT/645-2007 over RS485; HTTP-JSON and HTTP-OCMF over Ethernet for cloud and EMS integration.
• Alarm & safety functions: Real-time detection and alarms for over-temperature, over-current and magnetic tampering; includes self-diagnostics, safety protections and line-loss energy compensation.
• Legal metrology compliance: MID and PTB Eichrecht certified for commercial billing, ensuring measurement accuracy and data integrity.

Technical parameters (table)
Product Model | EM619025 | EM619026 | EM619027
Current | 200A | 400A | 650A
Max Current | 2A | 4A | 6A
Max Measure Current | 160mA | 320mA | 480mA
Rated Voltage | 100~1000V
Voltage Input | 24~36V DC
Communication methods | RS485, Ethernet
Communication Protocol | RS485: Modbus RTU / DLT/645-2007. Ethernet: HTTP-JSON / HTTP-OCMF.
Accuracy | ±1% (current/voltage/power), Energy Class 1

DC Metering Applications

• DC EV charging stations (high-power fast chargers): Legal and metered billing for charging networks via OCMF.
• Solar PV systems: Monitoring DC generation upstream of inverters to support yield management.
• Battery energy storage systems (BESS): Tracks bi-directional flows to support battery management and grid services.
• Data centers: Energy monitoring for DC microgrids and rack power distribution.
• Telecom base stations: Reliable DC power measurement for critical telecom infrastructure.

Technical characteristics / specifications

• Model: EM619025 (also EM619026, EM619027)
• Meter type: Bi-directional DC energy meter
• Primary current options: 200A (EM619025), 400A (EM619026), 650A (EM619027)
• Max Current: 2A / 4A / 6A (per model)
• Max measure current: 160mA / 320mA / 480mA
• Rated voltage range: 100 ~ 1000 V DC
• Auxiliary voltage input: 24 ~ 36 V DC
• Communication interfaces: RS485, Ethernet
• Supported protocols: Modbus RTU, DLT/645-2007 (RS485); HTTP-JSON, HTTP-OCMF (Ethernet)
• Accuracy: ±1% (current/voltage/power), Energy Class 1
• Alarms & protections: Over-temperature, over-current, magnetic tampering detection, self-diagnostics, safety protections, line-loss compensation
• Compliance: MID and PTB Eichrecht certified for legal commercial billing
• Typical applications: DC EV fast chargers, solar PV monitoring, BESS, data centers, telecom base stations