Schneider Electric continues to lead the way in energy monitoring and power management with the EasyLogic EM6459H VAF PF DPM Meter (Model: METSEEM6459HCL10RS). A part of the EasyLogic Hexa-Series, this advanced energy meter exemplifies accuracy, functionality, and reliability—empowering industrial and commercial facilities to take control of their power usage effectively.
The EM6459H is a versatile device designed to monitor and manage power factor, load conditions, and energy consumption. It is ideal for applications including:
Power Factor Control
Load Control
Comprehensive Power Monitoring
The meter supports an extensive range of measurements such as voltage, current, frequency, RPM, unbalanced voltage and current, calculated neutral current, and phase currents. It also displays vital data like average current and voltage, power factor (signed, four-quadrant), displacement PF, and percentage load.
The EM6459H stands out for its high precision, offering measurement accuracies of:
±1% for current and voltage,
±0.05% for frequency,
±0.01 for power factor.
This ensures that power parameters are monitored with utmost confidence, minimizing errors and optimizing system performance.
Designed with ease of use in mind, the EM6459H is:
Flush-mounted with clamp fixation
Suitable for indoor installation
Rated for installation category III, making it suitable for industrial environments
Its compact build—96mm x 96mm with a depth of 49mm (panel)—makes it a perfect fit for control panels and distribution boards.
Equipped with RS485 communication port and supporting the Modbus protocol (4800 to 38400 bps), the meter seamlessly integrates into existing monitoring systems. Its communication terminals are screw-clamp type with 2500V insulation, ensuring both durability and safety.
Data such as load percentage, revolution speed, counters, and measurements can be communicated and logged effortlessly, allowing real-time and historical data analysis.
The red 7-segment LED display presents:
3 fields of 4 characters each
12-digit display with 14.2 mm character height
This ensures high visibility and easy readability of power parameters, even from a distance or under harsh lighting conditions.
Constructed using polycarbonate housing with UL 94 V-0 flame retardance, the EM6459H ensures long-term operational safety. It features:
IP51 protection (front)
IP30 protection (body)
Operating temperature: -10°C to +60°C
Storage temperature: -20°C to +70°C
Humidity tolerance: 5% to 95% at 50°C
Service life: 7 years
As part of Schneider Electric’s commitment to sustainability, the EM6459H supports the company’s “Use Better, Use Longer, Use Again” campaign. Highlights include:
Carbon footprint: 171 kg CO₂ equivalent (total lifecycle)
Packaging: Made with recycled cardboard
ROHS and REACH compliant
SCIP Number: 2e6b556c-15aa-4f88-b35e-16e68ae215e5
The meter complies with key international environmental and safety standards, including IEC 61010-1, UL 61010-1, CSA C22.2, and multiple EMC standards (IEC 61000-4-x, FCC Part 15).
With zero output relays and a sampling rate of 32 samples/cycle, the EM6459H offers real-time accuracy in detecting electrical anomalies such as power outages and interruptions. Its tamper-proof settings, safeguarded by access code protection, enhance security and data integrity.
Each unit is:
300g net weight
Shipped in 9x12x12.4 cm packaging
Bulk packaging option available (18 units per box
| # | Issue | Possible Cause | Recommended Action |
|---|---|---|---|
| 1 | No display on power-up | No power or wrong wiring | Verify AC/DC power (44–277V) and connections |
| 2 | Display is blank but LED flashes | Display config error | Check display settings in setup menu |
| 3 | LED always ON, not flashing | Internal fault | Power cycle; if unresolved, contact support |
| 4 | RS485 communication failure | Baud/parity/ID mismatch | Match Modbus config with host settings |
| 5 | Incorrect voltage readings | Miswired voltage inputs | Verify phase-to-neutral/phase connections |
| 6 | Current reading zero | CTs not connected/wired wrongly | Check CT terminals, polarity, and ratios |
| 7 | Incorrect power factor (PF) | CT reversed/displacement PF issue | Correct CT orientation or review PF setup |
| 8 | Frequency values incorrect | Noisy voltage signal | Check source voltage waveform |
| 9 | Fluctuating current or voltage | Loose wires or interference | Tighten connections and improve shielding |
| 10 | Unbalanced current shown | Unbalanced load or CT mismatch | Compare load, check CT specifications |
| 11 | RPM values incorrect | Wrong pulses/rotation config | Check RPM input settings |
| 12 | Meter doesn't log outages | Logging config error | Verify power interruption settings |
| 13 | Wrong average voltage/current | Misconfigured measurement interval | Adjust averaging method in settings |
| 14 | Cannot change parameters | Settings are locked | Unlock via access code |
| 15 | Tamperproof settings enabled | Admin access not used | Use correct admin credentials |
| 16 | Energy pulses not working | Output disabled or bad wiring | Enable output and inspect terminals |
| 17 | Green LED not blinking | No activity on bus | Confirm RS485 lines are live |
| 18 | Red LED not indicating output | Load too small or output off | Load test or check pulse setting |
| 19 | Wrong percentage load shown | CT ratio or config wrong | Verify CT ratio, transformer data |
| 20 | Wrong neutral current value | Load imbalance or wrong setting | Check configuration and wiring |
| 21 | No pulse output | Pulse constant not set | Set kWh/kVAh pulse constant correctly |
| 22 | Display frozen | Software hang | Restart power; reset to default |
| 23 | Wrong U12/U23/U31 shown | Phase sequence error | Check phase connections and sequencing |
| 24 | Wrong frequency range | Wrong input voltage | Ensure input is 50–60 Hz range |
| 25 | Communication cable heat | Overcurrent or wrong terminals | Check RS485 cable gauge, terminal torque |
| 26 | Burnt smell from meter | Overvoltage or short circuit | Disconnect immediately, inspect for damage |
| 27 | Control circuit not responding | Loose terminal or signal loss | Inspect top screw terminals (0.82–3.31 mm²) |
| 28 | Settings lost after power cycle | Non-saved configuration | Save settings before shutdown |
| 29 | Display shows “Err” or fault | Internal error or setup error | Refer to user manual error code list |
| 30 | Unable to mount properly | Incorrect panel cutout or loose clamps | Ensure correct panel size and clamp torque |
Always power down the system before checking terminals.
Use Philips No. 2 screwdriver for correct torque (0.9–1.0 N·m).
Observe RS485 polarity and proper shielding for communication.
The Schneider Electric EasyLogic EM6459H is more than just a power meter—it’s a robust tool for enhancing energy efficiency, reducing operational costs, and ensuring power quality compliance in any facility. With precision engineering, smart connectivity, and sustainable design, it is an ideal choice for energy-conscious industries looking to modernize their power infrastructure.