As the new energy charging sector grows rapidly, metering accuracy has become a critical pain point: Users worry about being overcharged, operators risk revenue loss from faulty readings, and power grids demand compliant equipment to maintain energy data integrity. Ordinary energy meters simply can’t keep up with EV chargers’ unique challenges—high current fluctuations, bidirectional energy flow (for V2G), and strict compliance rules. That’s where the three-phase CT-type energy meter EM719028 steps in, designed to solve these issues at the source.
Why EM719028 Is Non-Negotiable for EV Chargers
EV chargers (especially three-phase models) need a meter that can handle their tough operating conditions. EM719028 delivers with three unbeatable strengths:
1. Precision for High-Current Scenarios: Most three-phase EV chargers run on tens to hundreds of amps—too much for ordinary meters, which burn out or give wrong readings. EM719028 uses a current transformer (CT) to convert this high current to a manageable 0.1-5(6)A. Paired with its Class 0.5 accuracy rating (error <0.5%), it captures every kilowatt-hour of charging—no more lost revenue from undercounting or user complaints from overcounting.
2. Bidirectional Metering for V2G Readiness: With V2G (Vehicle-to-Grid) technology on the rise, EVs now feed power back to the grid during peak hours. EM719028 supports 4 measurement modes (default: total energy = forward + reverse), so it tracks both the power used to charge the vehicle and the power the vehicle sends back to the grid. This ensures operators can bill for charging and compensate users for grid feedback—future-proofing your charger setup.
3. MID Compliance to Avoid Operational Risks: Without official compliance, EV chargers can’t connect to the grid or offer commercial services. EM719028 is fully MID-approved (meets EN 50470-3 standards), giving you the green light for legal grid connection and trusted commercial charging operations.
Beyond Metering: EM719028 Boosts Charger Efficiency
EM719028 isn’t just a meter—it streamlines day-to-day operations for charger operators:
Hassle-Free Connectivity: It supports RS485 Modbus/DLT645 dual protocols, so it connects directly to your charger’s control system or remote monitoring platform. No extra converters needed—you get real-time data on voltage (V), current (A), power (W), and cumulative energy (kWh) right from your backend, cutting out manual meter-reading errors.
Durable for Outdoor/Charger Environments: EV chargers often sit outdoors, facing high temperatures, humidity, and electromagnetic interference. EM719028’s DIN rail mounting fits perfectly into charger interiors, while its built-in lithium battery preserves data during power outages. The backlight display also makes it easy for technicians to check readings in bright or dim conditions.
Flexible Multi-Tariff Support: Grid peak/valley pricing is key to optimizing charger usage and revenue. EM719028 automatically counts energy use across peak, flat, and valley periods, letting you set dynamic pricing (e.g., lower rates off-peak to attract users). This not only aligns with grid “peak-shaving” goals but also boosts your charger’s utilization.
Fits Every EV Charger Scenario
Whether you’re running a 10kW residential three-phase charger or a 60kW commercial fast-charging station, EM719028’s 3P4W (three-phase four-wire) design works seamlessly. Its compact size won’t take up extra space in your charger, making integration quick and easy.
For EV charger operators, EM719028 isn’t just a meter—it’s a safeguard against disputes, a driver of efficiency, and a ticket to compliant operations. If you’re building new chargers or upgrading existing metering systems, contact us today for EM719028’s technical specs and quotes. Let accurate, reliable metering power your charging business forward!
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