Operating Instructions

Safety rules

Explanation of Safety Instructions

DANGER! Indicates an immediate danger. Death or serious injury may result if appropriate precautions are not taken.

WARNING! Indicates a possibly dangerous situation. Death or serious injury may result if appropriate precautions are not taken.

CAUTION! Indicates a situation where damage or injury could occur. Minor injury or damage to property may result if appropriate precautions are not taken.

NOTE! Indicates the possibility of flawed results and damage to the equipment.

General Safety Precautions

The device is manufactured using state-of-the-art technology and according to recognized safety standards. Incorrect or misused operation can cause serious or fatal injury to the operator or a third party, and damage to the device and other material assets.

All persons involved in start-up, operation, maintenance, and servicing must:

• Be suitably qualified.
• Have knowledge of and experience in dealing with electrical installations.
• Have fully read and precisely followed these Operating Instructions.

Keep these Operating Instructions readily available wherever the device is used. In addition, follow all applicable local rules and regulations regarding accident prevention and environmental protection.

All safety and danger notices on the device must:

• Be kept in a legible state.
• Not be damaged/marked.
• Not be removed.
• Not be covered, pasted, or painted over.

Terminals can reach high temperatures.

Only operate the device when all protection devices are fully functional. If protection devices are not functional, there is a risk of serious or fatal injury and damage to the device and other material assets.

Any safety devices that are not functioning properly must be repaired by an authorized specialist before the device is switched on.

Never bypass or disable protection devices.

Refer to the "General" section for the location of safety and danger notices.

Any equipment malfunctions which might impair safety must be remedied immediately before the device is turned on.

Your personal safety is at stake!

Environmental conditions

Operation or storage outside the stipulated area is considered not in accordance with the intended purpose. The manufacturer accepts no liability for damage resulting from improper use.

Qualified personnel

Servicing information is intended only for qualified service engineers. Electric shock can be fatal. Do not perform actions other than those described in the documentation.

All cables and leads must be secured, undamaged, insulated, and adequately dimensioned. Loose connections, scorched, damaged, or under-dimensioned cables and leads must be repaired immediately by an authorized specialist.

Maintenance and repair work must only be carried out by an authorized specialist.

Use only original spare parts. Externally procured parts are not guaranteed to meet demands or safety requirements.

Do not carry out any alterations, installations, or modifications without manufacturer's permission.

Components not in perfect condition must be changed immediately.

Copyright

Copyright of these Operating Instructions remains with the manufacturer. Text and illustrations were accurate at the time of printing. Fronius reserves the right to make changes. Suggestions for improvement or corrections are welcome.

Data backup

The user is responsible for backing up any changes made to factory settings. The manufacturer accepts no liability for deleted personal settings.

FCC / RSS Compliance

FCC: This device corresponds to the limit values for a digital device of class B in accordance with Part 15 of the FCC regulations, providing adequate protection against harmful interference in homes. This device creates and uses high frequency energy and can interfere with radio communications if not used according to instructions. Interference is not guaranteed against in a particular installation. If interference occurs with radio or television reception, try the following:

• Adjust or reposition the receiving antenna.
• Increase the distance between the device and the receiver.
• Connect the device to another circuit not including the receiver.
• For support, contact the retailer or an experienced radio/TV technician.

Industry Canada RSS: The device corresponds to license-free Industry Canada RSS standards, subject to the following conditions: (1) The device may not cause harmful interference. (2) The device must accept any interference received, including interference that may cause undesired operation.

General

Device description

The Fronius Smart Meter is a bidirectional electricity meter for optimizing self-consumption and recording the household's load characteristic curve. Together with the Fronius inverter, Fronius Datamanager, and Fronius data interface, it provides a clear overview of power consumption. The meter measures power flow to loads or the grid and forwards this information to the Fronius inverter via ModBus RTU/RS485 communication.

CAUTION! Observe and follow safety instructions! Failure to do so will result in damage to persons and equipment.

• Switch off power supply before establishing the mains connection.
• Follow all safety instructions.

Warning notices on the device

Safety symbols:

• To avoid electric shocks: Do not dismantle or modify the device. Do not allow water or foreign substances to enter the device. Do not touch any connections directly.

RCM Symbol: The product complies with Australian laws [Australian compliance symbol].

Positioning

The Fronius Smart Meter can be installed at two locations: at the feed-in point and at the consumption point.

Positioning at the feed-in point

Textual description of the diagram: The diagram shows the Fronius Smart Meter positioned at the feed-in point of a system, connecting the inverter to the grid. It illustrates the flow of energy from the solar panels/inverter towards the grid.

Positioning at the consumption point

Textual description of the diagram: The diagram shows the Fronius Smart Meter positioned at the consumption point, measuring energy flow between the grid and household loads like a washing machine, TV, and lights.

Indicators and Connections

Textual description of the diagram: The diagram shows the front panel of the Fronius Smart Meter with numbered components:

• (1) Product designation: Fronius Smart Meter.
• (2) Placeholder for additional information.
• (3) AC connection area for line voltage inputs.
• (4) Placeholder for additional information.
• (5) LED Status Indicator: Green flashing indicates energy from the grid (consuming power). Red flashing indicates energy to the grid (generating power).
• (6) DIP Switch: Used for setting the Modbus address (see page 15), setting termination resistors (see page 16), and setting the baud rate (see page 18).
• (7) CT connection area for current transformers.
• (8) Data communication LED: Indicates communication status.
• (9) Data communication connection area: For connecting communication cables.

Installation

Installation Checklist

Follow these steps for installation:

1. Turn off power before making line voltage connections.
2. Mount the Fronius Smart Meter (see Mounting on page 9).
3. Connect circuit breakers or fuses and disconnects (see Circuit Protection on page 10).
4. Connect the line voltage wires to the meter's terminal block (see Line Wiring on page 10).
5. Mount the Current Transformers (CTs) around the line conductors. Ensure CTs face the correct direction (arrow indicates load or source) (see Connect Current Transformers on page 13).
6. Connect the twisted white and black wires from the CTs to the meter's terminal block, matching wire colors to the white and black dots on the label (see CT Wiring on page 14).
7. Check that the CT phases match the line voltage phases (see Connect Current Transformers on page 13).
8. Record the CT rated current for each meter, required for setup.
9. Connect the output terminals of the Fronius Smart Meter to the monitoring equipment (see Connecting data communication cables to inverters on page 14).
10. If necessary, set terminating resistors (see Terminating Resistors on page 16).
11. Check that all wires and plugs are securely installed in the terminal blocks by tugging on each wire.
12. Turn on the power to the Smart Meter.
13. Verify that the LEDs indicate correct operation. If power is consumed and sources are off, LEDs should flash green (see Power Status LEDs on page 30).
14. Check your Fronius System monitoring software. Ensure software is up-to-date for compatibility. Updates can be started via the inverter website or Solar.web.
15. Set CT-Ratio and Grid Type on the Fronius Datamanager web interface under Settings - Meter - Settings (see Commissioning on page 23).

Mounting

The Fronius Smart Meter has two mounting holes spaced 5.4 inches (137 mm) apart (center-to-center). These holes are usually covered by detachable screw terminals. Remove the terminals to mark hole positions and mount the meter.

Self-tapping sheet metal screws are included. Do not over-tighten screws, as long-term stress can crack the case.

Circuit Protection

The Fronius Smart Meter is considered "permanently connected equipment" and requires a disconnect means (circuit breaker, switch, or disconnect) and overcurrent protection (fuse or circuit breaker).

The Smart Meter draws only 10-30 mA. The rating of switches, disconnects, fuses, and circuit breakers is determined by wire gauge, mains voltage, and required current interrupting rating.

• The switch, disconnect, or circuit breaker must be within sight and as close as practicable to the Smart Meter, and must be easy to operate.
• Use circuit breakers or fuses rated for 20 amps or less.
• Use ganged circuit breakers when monitoring more than one line voltage.
• Circuit breakers or fuses must protect the mains terminals L1, L2, and L3. If neutral has overcurrent protection, it must interrupt both neutral and ungrounded conductors simultaneously.
• The circuit protection/disconnect system must meet IEC 60947-1 and IEC 60947-3, as well as all national and local electrical codes.

Line Wiring

Always turn off power before connecting line voltage inputs to the Fronius Smart Meter.

For line voltage wires, 16 to 12 AWG stranded wire, type THHN, MTW, or THWN, 600 V is recommended.

Do not place more than one wire per screw terminal; use separate wire nuts or terminal blocks if needed.

Verify that line voltages match the line-to-line and line-to-neutral values printed on the front label.

Connect each conductor to the appropriate phase; also connect ground and neutral (if applicable). The neutral connection "N" is not required on delta models, but connecting it to ground is recommended if neutral is not present.

The screw terminal handles wire up to 12 AWG. Connect each voltage line to the green terminal block as shown in the figures. Ensure terminal blocks are fully seated after connecting voltage lines.

Upon first power application, check LED behavior. If LEDs flash red-green-red-green, the voltage is too high for this model; disconnect power immediately!

Wiring Diagrams

Textual descriptions of wiring diagrams:

Single-Phase Three-Wire (Mid-Point Neutral) / Two-Phase Australia

This diagram shows the connection of a Fronius Inverter to a Fronius Smart Meter. The inverter's D+ and D- terminals connect to the meter's D+ and D- terminals. Current Transformers (CTs) are connected to CT L1, CT L2, and CT L3 terminals. The line voltage (Phase L1, Phase L2, Neutral) is connected to the AC terminals. Fuses or a Breaker rated ≤ 20 A are shown on Phase L1 and Phase L2. The diagram illustrates load and source faces for CTs and a shorting jumper.

Single-Phase Two-Wire without Neutral

Similar to the above, but the Neutral connection is not present on the Smart Meter's AC terminals. The diagram shows connections for Fronius Inverter, Smart Meter, CTs, and line voltage (Phase L1, Phase L2) with fuses/breaker.

Single-Phase Two-Wire with Neutral (up to hardware version 7.0)

This diagram shows a Fronius Inverter connected to a Fronius Smart Meter with a Neutral connection. It includes connections for D+/D-, CTs (L1, L2, L3), line voltage (Phase L1, Neutral), and fuses/breaker. Load and source faces for CTs are indicated, along with shorting jumpers.

Single-Phase Two-Wire with Neutral (from hardware version 8.0)

This diagram is similar to the previous one but specifies connections for hardware version 8.0, including D+/D-, CTs (L1, L2, L3), line voltage (Phase L1, Neutral), and fuses/breaker. It also shows load and source faces for CTs and shorting jumpers.

Three-Phase Four-Wire Wye

This diagram illustrates a three-phase system. A Fronius Inverter is connected to a Fronius Smart Meter. CTs are connected to CT L1, CT L2, and CT L3. Line voltage connections include Phase L1, Phase L2, Phase L3, and Neutral. Fuses or a Breaker rated ≤ 20 A are shown on each phase line. The diagram shows connections for load and source faces of CTs.

Three-Phase Three-Wire Delta without Neutral

This diagram shows a three-phase delta connection without a neutral wire. A Fronius Inverter is connected to a Fronius Smart Meter. CTs are connected to CT L1, CT L2, and CT L3. Line voltage connections are for Phase L1, Phase L2, and Phase L3. Fuses or a Breaker rated ≤ 20 A are shown on each phase line. Load and source faces for CTs are indicated.

Three-Phase Four-Wire Stinger

This diagram depicts a three-phase four-wire stinger configuration. It shows connections for a Fronius Inverter, Fronius Smart Meter, CTs (L1, L2, L3), line voltages (Phase L1, Phase L2, Phase L3, Neutral), and fuses/breaker. Specific voltage values (e.g., 120 Vac, 240 Vac, 208 Vac) are indicated for different parts of the system.

Three-Phase Two-Wire Corner Grounded Delta

This diagram illustrates a three-phase two-wire corner grounded delta system. It shows connections for a Fronius Inverter, Fronius Smart Meter, CTs (L1, L2, L3), line voltages (Phase L1, Phase L2, Phase L3), and fuses/breaker. A shorting jumper is shown for the CT inputs.

Connect Current Transformers

The current transformer must generate 333.33 millivolts AC at rated current. Refer to CT data sheets for ratings (e.g., Fronius CT, 41,0010,0104).

• Do not use 1 amp or 5 amp output models.
• Consult CT data sheets for maximum input current ratings.
• Match CTs with voltage phases: CT L1 should measure current on the phase monitored by L1 voltage input, and similarly for L2 and L3. Use supplied colored labels or tape to identify CT leads.
• To minimize noise, avoid extending CT wires, especially in noisy environments. If extension is necessary, use twisted pair cable (22-14 AWG, 300V or 600V rated, shielded if possible).
• Ensure CTs face the correct direction; an arrow indicates load or source (public grid).
• For unused phases showing strange readings, jumper unused CT inputs by connecting a short cable from the terminal marked with a white dot to the terminal marked with a black dot.

CT Wiring

Current transformers connect to the six-position black screw terminal block. Connect the white and black CT wires to the Fronius Smart Meter terminals marked CT L1, CT L2, and CT L3. Trim excess wire length if desired. Align the white wire with the white dot and the black wire with the black dot on the label. Note the phase connection order, as line voltage phases must match current phases for accurate measurement.

Connecting data communication cables to inverters

Fronius SnapINverter

Connect the data communication ports of the Fronius Smart Meter to the Fronius system monitoring in the inverter. Multiple Smart Meters can be installed. See "Multi meter system - Fronius SnapINverter" on page 19.

Textual description of diagram: Shows connections between Fronius Smart Meter (OUTPUT RS 485 Tx, Rx, GND, D+, D-) and Fronius SnapINverter (D+, D-, -). Connections are: 1. D- to D-, 2. D+ to D+, 3. - to -.

Fronius GEN24 inverter

Connect the data communication ports of the Fronius Smart Meter to the Modbus interface of the Fronius GEN24 inverter. Multiple Smart Meters can be installed. See "Multi meter system - Fronius GEN24 inverter" on page 21.

Textual description of diagram: Shows connections between Fronius Smart Meter (OUTPUT RS 485 Tx, Rx, GND, D+, D-) and Fronius GEN24 (GND, M1+, M1-). Connections are: 1. D- to M1-, 2. D+ to M1+, 3. - to GND.

IMPORTANT! Further information on successful start-up:

• Use a CAT5 type cable or higher.
• For data lines (D+, D-, M1+, M1-), use a twisted pair of cables.
• If output cables are near mains wiring, use wires/cables rated at 300V to 600V.
• Use double insulated or sheathed output cables near bare conductors.
• Use shielded twisted pair cables to avoid interference.
• Fronius Smart Meter outputs are galvanically isolated from dangerous voltages.

Set the address of the Fronius Smart Meter

The Fronius Smart Meter must be connected to the Fronius Datamanager. If only one Smart Meter is installed, the Modbus Address is 1.

DIP Switch Configuration:

Examples:

Modbus Address 1

DIP Switch Position: 1 2 3 4 5 6 (all 0s)

Modbus Address 2

DIP Switch Position: 1 2 3 4 5 6 (0 1 0 0 0 0)

Modbus Address 3 (value 1 + 2 = 3)

DIP Switch Position: 1 2 3 4 5 6 (1 1 0 0 0 0)

Modbus Address 4

DIP Switch Position: 1 2 3 4 5 6 (0 0 1 0 0 0)

Modbus Address 7 (value 1 + 2 + 4 = 7)

DIP Switch Position: 1 2 3 4 5 6 (1 1 1 0 0 0)

Modbus Address 20 (value 4 + 16 = 20)

DIP Switch Position: 1 2 3 4 5 6 (0 0 1 0 1 0)

Terminating resistors - explanation of symbols

• Inverter in the system: e.g., Fronius Symo.
• Meter - Fronius Smart Meter: Terminating resistor is integrated in the meter.
• Modbus RTU slave: e.g., Fronius Ohmpilot, Fronius Solar Battery, etc.
• Termination resistance: R 120 Ohm.

Terminating Resistors

The system might work without terminating resistors. Due to interferences, using terminating resistors according to the following schemes is recommended.

Textual description of diagram: Shows activating the Fronius Smart Meter terminating resistor (R 120 Ohm) by switching pin 7 to ON (1).

Set Baud Rate

Select the baud rate by setting DIP switch position 8. The change takes effect immediately.

Multi meter system - Explanation of symbols

• Grid: Supplies loads if PV modules or battery generate insufficient power.
• Inverter in the system: e.g., Fronius Primo, Fronius Symo, etc.
• Fronius Smart Meter: Measures metering data for electricity billing (grid purchases and grid power feed). It invoices grid purchases and pays for grid power feed.
• Primary meter: Records system load curve, makes data available for energy profiling in Fronius Solar.web, and regulates dynamic feed-in control.
• Secondary meter: Records load curve of individual loads (e.g., washing machine, TV) in the consumption branch and makes data available for energy profiling in Fronius Solar.web.
• Generator meter: Records load curve of individual generators (e.g., wind power plant) and makes data available for energy profiling in Fronius Solar.web.
• Modbus RTU slave: e.g., Fronius Ohmpilot, Fronius Solar Battery, etc.
• Loads in the system: e.g., washing machine, lights, television, etc.
• Additional loads in the system: e.g., heat pump.
• Additional producers in the system: e.g., wind power plant.
• Termination resistance: R 120 Ohm.

Modbus participant - Fronius SnapINverter

A maximum of 4 Modbus stations can be connected to the Modbus connection terminal.

IMPORTANT! Only one primary meter, one battery, and one Ohmpilot can be connected per inverter. The battery occupies 2 subscribers due to high data transfer.

Example:

Multi meter system - Fronius SnapINverter

If multiple Fronius Smart Meters are installed, each requires a separate address (see "Set the address of the Fronius Smart Meter" on page 15). The primary meter always gets address 1. Other meters are numbered consecutively from 2 to 14. Different Fronius Smart Meter power categories can be used together.

IMPORTANT! Use no more than 3 secondary meters. To avoid interference, install terminating resistors as per the "Terminating Resistors" chapter on page 16.

Textual description of diagrams: Two diagrams illustrate system configurations with primary meters at consumption and feed-in points, showing connections and termination resistors.

Modbus participant - Fronius GEN24

Inputs M0 and M1 can be freely selected. A maximum of 4 Modbus participants can be connected to the Modbus terminal on inputs M0 and M1.

IMPORTANT! Only one primary meter, one battery, and one Ohmpilot can be connected per inverter. The battery occupies 2 subscribers due to high data transfer.

Example 1:

Example 2:

Multi meter system - Fronius GEN24 inverter

If multiple Fronius Smart Meters are installed, each requires a separate address (see "Set the address of the Fronius Smart Meter" on page 15). The primary meter always gets address 1. Other meters are numbered consecutively from 2 to 14. Different Fronius Smart Meter power categories can be used together.

IMPORTANT! Use no more than 7 secondary meters. To avoid interference, install terminating resistors as per the "Terminating Resistors" chapter on page 16.

Textual description of diagrams: Two diagrams illustrate system configurations with primary meters at consumption and feed-in points, showing connections and termination resistors.

Commissioning

Fronius SnapINverter

General

IMPORTANT! Settings in the "Meter" menu item may only be entered by trained staff. The service password is required.

Three-phase or one-phase Fronius Smart Meters can be used. The Fronius Datamanager automatically detects the meter type.

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

Connect to Fronius Datamanager

Access Point:

1. Select "Setup" on the inverter display and activate "WLAN Access Point".
2. Connect to the inverter in network settings (inverter name: "Fronius_240.XXXXXX").
3. Enter and confirm the password from the inverter display.
4. In the browser's address bar, enter the IP address http://192.168.250.181 and confirm. The Fronius Datamanager start page appears.

LAN:

1. Connect the Fronius Datamanager and computer with a LAN cable.
2. Switch the Fronius Datamanager IP switch to position "A".
3. In the browser's address bar, enter the IP address http://169.254.0.180 and confirm.

Configure Fronius Smart Meter as primary meter

1. Call up the Fronius Datamanager website (open web browser, enter IP address or host/domain name).
2. Click "Settings".
3. Log in with user "Service" and service password.
4. Call up the "Meter" menu.
5. Select the primary meter from the drop-down list.
6. Click "Settings".
7. Set the meter position (feed-in or consumption point) in the pop-up window (see Positioning on page 7).
8. Set the converter ratio and network type.
9. Click "OK" when status is OK. Repeat if timeout status is displayed.
10. Click the save button to save settings.

The Fronius Smart Meter is configured as a primary meter. In the "Current Total View" menu, PV module power, self-consumption, grid feed, and battery charging are displayed.

Configure Fronius Smart Meter as a secondary meter

1. Call up the Fronius Datamanager website (open web browser, enter IP address or host/domain name).
2. Click "Settings".
3. Log in with user "Service" and service password.
4. Call up the "Meter" menu.
5. Select the secondary meter from the drop-down list.
6. Click "Add".
7. Enter the secondary meter's name.
8. Enter the assigned address in "Modbus address".
9. Set the converter ratio and network type.
10. Complete the meter description.
11. Click the save button to save settings.

The Fronius Smart Meter is configured as a secondary meter.

Fronius GEN24 inverter

General

IMPORTANT! Settings in the "Device configuration" menu item may only be entered by trained staff. The service password is required.

Three-phase or one-phase Fronius Smart Meters can be used. Selection is made via the "Components" menu area. The meter type is automatically determined.

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

Installation with the browser

WLAN:

1. Open the access point by touching the sensor once. Communications LED flashes blue.
2. Connect to the inverter in network settings (inverter name: "FRONIUS_PILOT" and serial number).
3. Enter password: 12345678 and confirm. (For Windows 10, select "Connect using a security key instead").
4. Enter IP address 192.168.250.181 in the browser address bar and confirm. The installation wizard opens.
5. Follow the installation wizard and complete installation.
6. Add system components in Solar.web and commission the PV system. Network connection is required for Solar.web installation.

Ethernet:

1. Establish a connection to the inverter (LAN1) using a network cable (min. CAT5 STP).
2. Open the access point by touching the sensor once. Communications LED flashes blue.
3. Enter IP address 169.254.0.180 in the browser address bar and confirm. The installation wizard opens.
4. Follow the installation wizard and complete installation.
5. Add system components in Solar.web and commission the PV system. Network connection is required for Solar.web installation.

Configure Fronius Smart Meter as primary meter

1. Call up the inverter's website (open web browser, enter IP address or host/domain name).
2. Click "Device configuration".
3. Log in with user "Technician" and technician password.
4. Call up the "Components" menu.
5. Click "Add components".
6. Set meter position (feed-in or consumption point) in "Position" drop-down list (see Positioning on page 7).
7. Set converter ratio and network type.
8. Click "Add".
9. Click "Save" to save settings.

The Fronius Smart Meter is configured as a primary meter.

Configure Fronius Smart Meter as a secondary meter

1. Call up the inverter's website (open web browser, enter IP address or host/domain name).
2. Click "Device configuration".
3. Log in with user "Technician" and technician password.
4. Call up the "Components" menu.
5. Click "Add components".
6. Select meter type (generator/load meter) in "Position" drop-down list.
7. Enter address in "Modbus address" input field.
8. Enter meter name in "Name" input field.
9. Set converter ratio and network type.
10. Select category (generator or load) in "Category" drop-down list.
11. Click "Add".
12. Click "Save" to save settings.

The Fronius Smart Meter is configured as a secondary meter.

Operation

Power Status LEDs

Three status LEDs on the Fronius Smart Meter indicate measurements and operation (L1, L2, L3 represent phases).

Normal Startup

The Smart Meter displays the following startup sequence when power is first applied:

Consuming Power

Flashing green LEDs indicate normal positive power (import from grid). This is normal when the inverter is in its 5-minute startup cycle.

No Power

Solid green LED indicates no power, but line voltage is present.

No Voltage

LED off indicates no voltage on that phase.

Generating Power

Red flashing indicates negative power for that phase (export to grid). If no power is produced, this may indicate reversed CTs, swapped CT wires, or mismatched CTs with line voltage phases.

Overvoltage Warning

The following indicates line voltage is too high. Disconnect power immediately! Check line voltages and meter ratings.

Meter Not Operating

If no LEDs are illuminated, check line voltages. If correct, call customer service.

Error

If an internal error occurs, all LEDs light up red for 3+ seconds. If this repeats, call customer service.

Modbus Communication LEDs

The diagnostic Com (communication) LED indicates:

• Green flash: Valid packet addressed to this device.
• Yellow flashes: Valid packets addressed to different devices.
• Red flash (1 sec): Invalid packet (bad baud rate, CRC, noise, parity, etc.).
• Rapid red/yellow flashing: Possible address conflict (two devices with the same DIP switch address).
• Solid red: Address is set to zero (invalid choice).

Technical data

Accuracy

Normal Operation:

• Line voltage: 90 - 347 Vac (Line to Neutral), 120 - 600 Vac (Line to Line)
• Power factor: 1.0
• Frequency: 45 - 65 Hz
• Ambient Temperature: 23°C ± 5°C
• CT Current: 5% - 100% of rated current
• Accuracy: ± 0.5% of reading

Measurement

• Update Rate: 0.1 second.
• Startup Time: ~1.0 second. Communication starts after AC voltage is applied. Energy measurement starts 50-100 milliseconds after AC is applied.
• Default CT Phase Angle Correction: 0.0 degrees.

Models and Electrical

The Fronius Smart Meter has an optional neutral connection for wye circuits. In the absence of neutral, voltages are measured with respect to ground. The meter uses Phase L1 and Phase L2 for power.

• Over-Voltage Limit: 125% of nominal Vac. Extended over-voltage can damage the meter and void the warranty.
• Over-Current Limit: 120% of rated current. Exceeding this limit will not harm the meter but will affect measurement accuracy.
• Maximum Surge: 4 kV according to EN 61000-4-5.

Certifications

EMC:

• EN55011:2007, CISPR 11:2009 - Class B
• FCC Part 15 - Class B
• EN 61326-1:2012, includes:
• Harmonics: IEC 61000-3-2
• Flicker: IEC 61000-3-3
• Electrostatic Discharge: IEC 61000-4-2
• Radiated RF Immunity: IEC 61000-4-3
• Electrical Fast Transient / Burst: IEC 61000-4-4
• Surge Immunity: IEC 61000-4-5
• Conducted RF Immunity: IEC 61000-4-6
• Power Frequency H-Field: IEC 61000-4-8
• Voltage Dips, Interrupts: IEC 61000-4-11

Safety:

• UL 61010-1
• CAN/CSA-C22.2 No. 61010-1-12
• IEC 61010-2

Environmental

• Operating Temperature: -40°C to +80°C (-40°F to 176°F)
• Altitude: Up to 3000 m (9842 ft)
• Operating Humidity: non-condensing, 5 to 90% RH up to 40°C, decreasing linearly to 50% RH at 55°C.
• Pollution: POLLUTION DEGREE 2 - Normally only non-conductive pollution; occasional temporary conductivity due to condensation may be expected.
• Indoor Use: Suitable for indoor use.
• Outdoor Use: Suitable for outdoor use if mounted inside an electrical enclosure (e.g., Hammond Mfg., Type EJ Series) rated NEMA 3R or 4 (IP 66).

Fronius manufacturer's warranty

Detailed warranty conditions specific to your country can be found online at: www.fronius.com/solar/garantie

To take advantage of the full warranty duration for your newly installed Fronius inverter or storage system, register your product at: www.solarweb.com