Fronius Smart Meter WR Reveals Household Consumption
The Fronius Smart Meter WR is a bidirectional electricity meter that measures energy flowing to your loads and to or from the grid. It passes that data to your Fronius inverter or Fronius Datamanager 2.0 over Modbus RTU (RS485).
The result is a full picture of what your home produces, uses, imports and exports.
Why You'll Love The Fronius Smart Meter WR
See your real consumption. Add the meter and Fronius Solar.web shows your household load curve, not just solar production.
Use more of your own power. Fronius built the meter to optimize self-consumption, so your system can make smarter use of the energy you generate.
Accurate readings. Rated at plus or minus 0.5% of reading with a 0.1 second measurement update rate.
Fits almost any US service. Handles single, split and three-phase services from 120 to 600VAC line to line.
Your life, with the Fronius Smart Meter WR
You open the app in the evening and see exactly when the dryer ran and how much came from your roof. You start running big loads in the sunny hours. Your bills drop, and you finally understand where your energy goes.
The Fronius Smart Meter WR in a nutshell
Bidirectional metering
Measures energy flow to the loads or to the public grid and reports it to the inverter or Datamanager 2.0.
Wide voltage range
Line voltage 90 to 347VAC line to neutral, 120 to 600VAC line to line, 1 to 3 phases with 2 to 4 wires.
CT-based measurement
Reads current through external current transformers that output 333.33 mV AC at rated current, such as the Accu-CT ACTL series.
GEN24 and SnapINverter ready
The operating instructions cover setup with Fronius SnapINverters via Datamanager 2.0 and with Fronius GEN24 inverters, including multi-meter systems.
Fronius Smart Meter WR specifications
Measurement
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Line voltage: 90 to 347VAC (L-N), 120 to 600VAC (L-L)
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Frequency: 45 to 65 Hz
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Accuracy: Plus or minus 0.5% of reading (CT current 5 to 100% of rated)
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Measurement update rate: 0.1 second
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Startup time: Approx. 1 second
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CT input: 0.33333 VAC RMS at CT rated current
Protection and installation
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Meter current draw: 10 to 30 mA
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Circuit protection: Fuses or breakers rated 20A or less, plus a disconnect
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Measurement category: CAT III
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Overvoltage limit: 125% of nominal
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Overcurrent limit: 120% of rated CT current
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Surge: 4kV (EN 61000-4-5)
Communication and size
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Interface: Modbus RTU / RS485
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Dimensions: Approx. 6.1 x 3.35 x 1.5 in (155 x 85 x 38.1 mm)
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Part number: 43,0001,3591
Let the experts help you find your perfect Fronius Smart Meter WR setup
The right CT size depends on your service and where you meter. Tell us your panel rating and inverter model and we will match the meter and CTs for you.
Email support@kratopower.com or call +1 888-855-7286.
Fronius Smart Meter WR documents and materials
Safety disclaimer: Meter and CT installation involves live service conductors. Installation should be carried out by a licensed electrician in line with the NEC, local codes and the manufacturer's instructions. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
