{"product_id":"tuya-wifi-zigbee-three-phase-bidirectional-energy-kwh-meter-modbus-rtu-1","title":"Tuya WiFi\/ZigBee 3-Phase Bidirectional KWh Energy Meter | Modbus RTU","description":"\n\u003ch2\u003eTuya WiFi\/ZigBee Three-Phase Bidirectional Energy KWh Meter with Modbus RTU Support\u003c\/h2\u003e\n\u003cp\u003eTake full control of your three-phase electrical system with this smart, bidirectional energy meter powered by the Tuya IoT platform. Whether you're managing a commercial facility, solar installation, or industrial setup, this advanced wattmeter delivers real-time monitoring, remote control, and comprehensive data logging — all accessible from your smartphone via WiFi or ZigBee connectivity.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart IoT Integration:\u003c\/strong\u003e Built on the Tuya Smart platform for automatic wireless networking, remote meter reading, and remote relay (pull-close) control from anywhere.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Parameter Measurement:\u003c\/strong\u003e Simultaneously monitors voltage, current, active power, reactive power, apparent power, power factor, and phase angle across all three phases.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBidirectional Energy Tracking:\u003c\/strong\u003e Accurately measures both imported and exported energy — ideal for solar and renewable energy systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Data Logging:\u003c\/strong\u003e Stores monthly electricity consumption statistics for the last 12 months and daily statistics for the last 31 days, plus demand tracking and bidirectional energy totals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEvent \u0026amp; Relay History:\u003c\/strong\u003e Logs the last 50 relay operations and 10 SOE (Sequence of Events) records for full operational transparency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Relay with Prepaid Management:\u003c\/strong\u003e Integrated relay supports remote ON\/OFF switching and prepaid energy management control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRS485 Bus Communication:\u003c\/strong\u003e Supports Modbus RTU (default) and DL\/T645-2007 protocols with baud rates up to 9600 bps for seamless integration into existing BMS or SCADA systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Overcurrent Protection:\u003c\/strong\u003e Configurable overcurrent protection from 10A to 80A to suit a wide range of applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge Backlit LCD Display:\u003c\/strong\u003e White-backlit LCD with adjustable illumination time for easy on-site reading in any lighting condition.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN Rail Mounting:\u003c\/strong\u003e Standard TH35-7.5 DIN rail mounting for quick, tool-friendly panel installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWiFi \/ ZigBee (Tuya Smart)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-wire RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Protocols\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModbus RTU (default), DL\/T645-2007\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBaud Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1200 \/ 2400 \/ 4800 \/ 9600 bps (default: 9600)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–80A (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×H×D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e126 × 98 × 80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTH35-7.5 DIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeter Case Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL 94 V-0 (flame retardant)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-25°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;90%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLarge LCD with adjustable white backlight\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot required\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Three-Phase Bidirectional Energy Meter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor further guidance on safe electrical metering installation practices, refer to the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety Guidelines\u003c\/a\u003e. For information on energy efficiency standards and smart metering, visit \u003ca href=\"https:\/\/www.energy.gov\/oe\/grid-modernization-and-smart-grid\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eU.S. Department of Energy – Grid Modernization \u0026amp; Smart Grid\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does this three-phase energy meter work with solar or net-metering systems?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the bidirectional (two-way) energy measurement capability makes this KWh meter ideal for solar installations and any net-metering application. It accurately tracks both energy consumed from the grid and energy exported back to it, providing a complete picture of your energy flow.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What smart home or building management systems is this Tuya meter compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This meter integrates with the Tuya Smart IoT platform, which is compatible with Amazon Alexa, Google Home, and a wide range of Tuya-enabled apps and devices. For industrial or commercial BMS\/SCADA integration, the RS485 interface with Modbus RTU and DL\/T645-2007 protocol support enables seamless connectivity with most building management and automation systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I control this energy meter remotely?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Via the Tuya Smart app over WiFi or ZigBee, you can remotely read meter data, switch the built-in relay ON or OFF, configure prepaid energy management, and review historical consumption statistics — all from your smartphone, wherever you are.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum current this meter can handle, and is overcurrent protection adjustable?\u003c\/h4\u003e\n\u003cp\u003eA: The meter supports an adjustable overcurrent protection range of 10A to 80A, allowing you to set the threshold appropriate for your specific load. The built-in relay will activate based on your configured protection settings to help safeguard your connected equipment.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does this three-phase energy meter work with solar or net-metering systems?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the bidirectional (two-way) energy measurement capability makes this KWh meter ideal for solar installations and any net-metering application. 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