PC4713-W

Three-Phase WiFi Smart Energy Meter

Name: PC4713-W Three-Phase WiFi Smart Energy Meter
Brand: OWON Technology
SKU: PC4713-W

For self-hosted dashboards: open 3-phase meter with HTTP, MQTT and Modbus TCP, 50 ms refresh, four-quadrant data, Home Assistant ready.

Smart Meters Three Phase API WiFi TCP/IP Modbus

Overview

PC4713-W is the Wi-Fi member of the OWON Open API three-phase range, for projects that will not put consumption data through a vendor cloud. It reports over HTTP, MQTT or Modbus TCP straight to your own cloud or local server; there is no account to create and nothing between the meter and the receiving system.

Configuration needs no app either — the meter serves its own page over its hotspot, so a browser is enough to read values and to change settings. It covers three-phase four-wire, split-phase and single-phase supplies at 3×230/400 V AC (90–277 V range), with bidirectional measurement and three open-type CTs from 80 A to 750 A.

Where the PC4713-W Sits in the Range

The Open API family has two members. This one carries Wi-Fi only; the PC4713-W-485 adds an RS485 port carrying Modbus RTU with a maximum 50 ms response, for the PLC, BMS and SCADA loops that poll a serial bus. Both report to the same place, so the choice between them is the physical bus rather than the platform.

The Open API hardware is specified for three-phase four-wire, split-phase and single-phase supplies. A three-phase three-wire or delta service is metered by the Tuya-series PC4713-W-E-TY/3W; and where the requirement is the Tuya App rather than a self-hosted platform, the equivalents are the PC4713-W-TY and PC4713-W-E-TY. In this range the platform follows the hardware, not the firmware.

PC4713-W Platform and Integration Notes

Open-type CTs, no rewiring. Up to three split-core CTs from 80 A to 750 A clip around the existing conductors, so no circuit is cut and no supply is interrupted during installation.

Class B (1%) accuracy, with its bands stated. Voltage ±1%; current ±1% at rated current and ±2% at low current, banded per CT rating — on 300 A and above, ±1% from 6 A upwards, ±2% between 2 A and 6 A, and ±5% below 2 A.

Settings over the network. Reporting frequency, CT specification, OTA firmware update, data erase and remote reboot are all reachable over Wi-Fi, so a fleet can be reconfigured without visiting it.

Phase sequence error alarm. A mis-ordered phase is reported rather than left to surface later as an unexplained fault.

Home Assistant integration. The meter is supported on the HA platform as well as by direct polling over HTTP, MQTT or Modbus TCP.

PC4713-W Limits and What to Specify Instead

RS485 / Modbus RTU — not fitted. The PC4713-W-485 adds the serial bus and keeps the Wi-Fi path.
Three-phase three-wire and delta — the Open API hardware is four-wire, split-phase and single-phase only. Specify the Tuya-series PC4713-W-E-TY/3W.
Relay output — no model in the Open API range carries a dry contact.
The Tuya App, Tuya automation and Tuya Cloud history — readings go to your platform, not to a vendor app.

Specifications

Accuracy	±1% (Voltmeters)
Ammeter Accuracy	80A CT: ±1% (1-80A), ±2% (0-1A); 120A CT: ±1% (2-120A), ±2% (0-2A); 200A CT: ±1% (2-200A), ±2% (0-2A); 300A CT: ±1% (6-300A), ±2% (2-6A), ±5% (0-2A); 500A CT: ±1% (6-500A), ±2% (2-6A), ±5% (0-2A); 750A CT: ±1% (6-750A), ±2% (2-6A), ±5% (0-2A)
Voltage	3x230/400V AC, 50/60Hz (90-277V range)
Current	80A~750A (CT dependent)
Frequency	50/60Hz
Power Supply	<2W
Protocol	WiFi 802.11 b/g/n @ 2.4GHz (HTTP / MQTT / Modbus TCP)
Wi-Fi	802.11 b/g/n @ 2.4GHz — HTTP / MQTT / Modbus TCP
Data Refresh	50ms
reportTime	Configurable in integration
Supported Systems	Single-Phase, Split-Phase, Three-Phase 4-wire (3-Phase 3-Wire & Delta not supported)
Mounting	35mm DIN rail mounting
Dimensions	19(W) x 69(D) x 90(H) mm
Operating Temp	-20℃ to +55℃ (≤90% non-condensing)
Measured Parameters	Voltage, Current, Power Factor, Frequency, Active Power, Reactive Power, Apparent Power; Energy Usage / Solar Production
Clamp Inner Dimension	80A (optional): Ø10mm; 120A (default): Ø16mm; 200A (optional): Ø20mm; 300A (optional): Ø24mm; 500A (optional): Ø36mm; 750A (optional): Ø51mm
Certification	CE
Place of Origin	China
Brand	OWON

Wiring & installation

Filmed on a live panel: L1 to A, L2 to B, L3 to C, neutral to N, and one CT per phase landed on IA+/- IB+/- IC+/-.

Isolate the supply before touching any conductor. Wire colours in the clip are the demo panel's, not a requirement.

Numbered steps, the terminal table and the mistakes that happen on site: full wiring tutorial .

Key Benefits

Open API With No Vendor Cloud

HTTP, MQTT or Modbus TCP straight to your own cloud or local server — the data never passes through a third-party platform.

Four-Quadrant Measurement and Demand

Active, reactive and apparent power in all four quadrants with switchable RMS / PQS modes, plus current demand and maximum demand.

Configured in a Browser, No App

Open the meter own configuration page from any browser: no app to install and no account to create.

Minute-Level Offline Storage

Data is buffered locally at minute intervals and re-reported automatically, so an outage does not leave a hole in the dataset.

Ideal For

Common deployment scenarios where Three-Phase WiFi Smart Energy Meter delivers the most value.

Reporting Into Your Own Platform

Direct HTTP, MQTT or Modbus TCP to a cloud or local server you control, with no third-party cloud in the path.

Solar and Storage Export Control

Four-quadrant measurement with current and maximum demand supports export limitation and anti-backflow logic.

Demand and Power-Quality Studies

Reactive and apparent power with RMS / PQS switching, for analysis beyond energy totals.

Multi-Tenant Submetering

Consumption data stays on the customer own infrastructure, which is what tenant billing projects usually require.

Browser-Only Commissioning

No app and no account: the installer opens the meter own page and configures it on site.

Data-Loss-Sensitive Sites

Minute-level offline storage re-reports automatically, so a network outage does not leave a gap.

Frequently Asked Questions

What is the difference between the PC4713-W and the PC4713-W-485?

Both variants share the same metering core, accuracy, housing and power supply. The PC4713-W communicates over Wi-Fi only, using HTTP, MQTT and Modbus TCP; the PC4713-W-485 adds an RS485 port for Modbus RTU.

Does the PC4713-W need a gateway or a third-party cloud?

No. It reports directly to your own cloud server over MQTT, HTTP or Modbus TCP and can also be read locally. No vendor cloud and no gateway are required.

Can I read the PC4713-W locally without any cloud?

Yes. Connect to the device with a browser to view real-time data and change settings; no app is required. It also integrates with Home Assistant.

Is the PC4713-W suitable for anti-backflow applications?

Yes. It provides real-time import and export energy data, which is what export limitation, zero-export control and anti-backflow monitoring are built on.

What electrical systems are supported?

Single-phase, split-phase and three-phase four-wire. Three-phase three-wire and delta are not supported — those need the Tuya-series PC4713-W-E-TY/3W.

How fast can it report?

The interval is set in your integration through the report_interval setting in device.measure.config: range 0 to 3600 seconds, default 10/600, with 1 second as the shortest interval. The Tuya versions report on the platform cycle of about 15 seconds; here the rate is yours to choose.

Which CT rating and aperture for a three-phase feeder?

80 to 750 A in six bores of Ø10 / 16 / 20 / 24 / 36 / 51 mm. Pick the first rating above the feeders maximum current; 100 A and 150 A are non-standard and start at 100 pieces per rating.

Which protocol documents do you provide?

The MQTT API with the data point table, the configuration API, the device certificate API, a protocol overview, MQTT topic definitions, the TCP communication mechanism and the device model mapping table — for project customers, under NDA where a document is not public.

Can it be re-flashed to the Tuya version later?

No. Open API and Tuya are different hardware, not firmware variants.

Is the link encrypted, and does it support client certificates?

Yes — TLS/SSL on MQTT with mutual (mTLS) certificate authentication, which activates when both the client certificate and the client private key are present. Certificates are uploaded in chunks through the link.mqtt.security.certificate interface, or pulled from your own server for rotation. Modbus TCP and Modbus RTU over RS485 are not encrypted.

PC4713 Series — choose the right variant

PC4713-W — this page	WiFi + open protocol (HTTP / MQTT / Modbus TCP)
PC4713-W-TY	WiFi + Tuya Cloud
PC4713-W-TY/R	+ dry-contact relay (remote on/off)
PC4713-W-E-TY	+ wired Ethernet 10/100
PC4713-W-E-TY/R	+ Ethernet + dry-contact relay
PC4713-W-E-TY/3W	3-phase 3-wire (3P3W) supplies
PC4713-W-485	+ RS485 Modbus RTU (BMS / SCADA)

Not sure which variant fits your project? See the PC471 selection guide.

Interested in Three-Phase WiFi Smart Energy Meter?

Download the datasheet or request pricing — our team will respond within 24 hours.

Download Datasheet PC471 Series Selection Guide WhatsApp +86 186 50139895

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