WiFi Smart Bidirectional Energy Meter 100A/300A with 3 CT Clamps
WiFi Smart Bidirectional Energy Meter 100A/300A with 3 CT Clamps
WiFi Smart Bidirectional Energy Meter — 100A / 300A with 3 CT Clamps
Take full control of your home or business electricity usage with this Tuya WiFi Smart Bidirectional Energy Meter. Supporting both 100A and 300A rated currents, this three-phase smart meter delivers accurate real-time energy monitoring, over/undervoltage circuit protection, and seamless app-based management — all in a compact DIN-rail-mounted unit. Made in Mainland China.
Key Features
- Stable & Accurate Monitoring: Three-phase WiFi smart bidirectional energy measurement ensures precise kWh tracking and uninterrupted operation across import and export circuits.
- Over & Undervoltage Protection: Three clamp-on current transformer (CT) relays with built-in limit switches automatically guard your appliances against damaging voltage fluctuations and power surges.
- Smart Energy Management: Track consumption in real time to identify energy waste, reduce electricity costs, and improve overall efficiency — ideal for homes, workshops, and small commercial setups.
- Easy App Control: Connect to your distribution box, pair with the Tuya WiFi app, and view live energy data from anywhere on your smartphone — no professional software required.
- Always-On LCD Display: The built-in LCD screen shows readings at a glance, even without a phone nearby. Maximum recordable capacity: 999,999 kWh.
- DIN Rail Mounting: Standard 35 mm DIN rail installation makes integration into existing electrical panels straightforward.
Specifications
| Rated Voltage | AC 80–240 V (L+N) |
| Rated Frequency | 50 / 60 Hz |
| Rated Current | 100 A / 300 A (selectable) |
| Max kWh Record | 999,999 kWh |
| Power Consumption | <1.5 W |
| Display | LCD — Always On |
| Wireless | WiFi (Tuya App) |
| Material | ABS + Metal |
| Color | White |
| Dimensions | 88 × 72 × 58 mm (L×W×H) |
| Mounting | 35 mm DIN Rail |
| Operating Temp. | -10 °C to +55 °C |
| Storage Temp. | -40 °C to +70 °C |
| Operating Humidity | 5% – 95% RH |
CT Clamp Options Included
- C/T-3000: 1–120 A — 16 mm aperture
- C/T-3000: 1–200 A — 24 mm aperture
- C/T-3000: 1–300 A — 24 mm aperture
What's in the Box
- 1 × Smart Bidirectional Energy Meter
- 3 × CT Clamps
Important Notes
Due to manual measurements, please allow a ±1–3 cm tolerance. Colors may appear slightly different on various screens due to monitor calibration differences.
For guidance on electrical safety standards and smart metering, visit the U.S. Department of Energy — Home Energy Audits.
Frequently Asked Questions
Q: What app does this WiFi smart energy meter use?
A: This smart bidirectional energy meter uses the Tuya WiFi app, available free on iOS and Android. Once paired, you can monitor real-time power consumption, review historical usage data, and receive alerts remotely from your smartphone.
Q: What is the difference between the 100A and 300A versions?
A: The rated current rating determines the maximum load the meter can accurately measure. The 100A version is suitable for most residential applications, while the 300A version is designed for higher-demand environments such as workshops, small commercial premises, or properties with large HVAC systems or EV chargers.
Q: How does the over/undervoltage protection work?
A: The three included CT clamps continuously monitor line voltage. When voltage rises above or falls below the configured threshold, the built-in relay switch automatically disconnects the circuit to protect connected appliances from damage caused by voltage irregularities.
Q: Is this meter compatible with solar or bidirectional energy setups?
A: Yes. The meter is specifically designed for bidirectional energy measurement, making it well-suited for solar panel installations, battery storage systems, and grid-tied setups where electricity may flow both to and from the grid.
Q: How is the meter installed?
A: The meter mounts onto a standard 35 mm DIN rail inside your electrical distribution box. Attach the CT clamps around the relevant conductors, connect the L+N supply wires, and configure the device through the Tuya app. Always consult a qualified electrician for installation.