Nous D4Z - Tuya Zigbee smart three-phase electricity meter on DIN-rail (3x120A)

Nous D4Z is a powerful smart power meter (3 x 120A) equipped with a Zigbee Tuya chip that supports contactless metering of three-phase systems. It is compatible with the Tuya/SmartLife smart home app. It can be connected to Nous E1 or other Tuya/SmartLife Zigbee gateways.

It consists of an 18 mm wide DIN rail mounting unit and three removable current clamps/current transformers. The device acts as a professional three-phase energy meter, accurately measuring voltage, current, power and energy in real time.

Main features:

• Precise energy measurement: 1 % measurement accuracy
• Bidirectional metering (consumption/input), suitable for solar systems
• Wide integration: e.g. Amazon Alexa, Google Home, Zigbee2MQTT, Tuya Zigbee
• App: Nous Smart or Tuya Smart
• High capacity: measuring up to 3 x 120A
• Easy DIN rail mounting in electrical boxes
• Smart home protocol: zigbee
• Tuya Zigbee Gateway is required for integration and remote management.

With Nous D4Z you can measure the power of three-phase electrical systems with contactless mounting - you only need to install three current clamps on three phase conductors.

You can easily monitor the load of each phase, the voltage and the current consumption of the network in real time via the app.

Tuya Zigbee compatibility The smart meter requires a Nous E1 or other Tuya Zigbee gateway, coordinator or hub to connect to the Zigbee network.

What is the Tuya/SmartLife smart home platform and app?

Tuya is a popular cloud platform for smart devices that makes it easy and fast to connect, remotely manage and control devices through a single app. Tuya, also known as SmartLife, offers users a complete smart home ecosystem with devices from a wide range of manufacturers.

It supports voice control, remote access and automated processes (e.g. notifications). The platform has integration with other smart home ecosystems such as Amazon Alexa, Google Assistant and SmartThings, so you can use Tuya devices on these platforms too. Like the global eWeLink platform, Tuya is a cloud-based solution, but the quality of devices on the market is quite varied.

Tuya offers Nous, a European manufacturer, which offers quality installations. Their devices can be used with the Nous app or the standard Tuya app.

Key features:

• Real-time monitoring
• Easy installation
• Alarm notifications
• Bi-directional measurement
• 1 % Energy measurement accuracy
• Flexible integration options
• Zigbee communication
• Bi-directional metering: monitoring of current and energy for both consumption and production
• Real-time monitoring: voltage, current and power monitoring
• Easy installation

What can the D4Z meter be used for?

• Monitoring energy consumption in households
• Energy monitoring for small business units: cafes, restaurants, shops, etc.
• Monitoring electricity consumption in commercial buildings and infrastructure: offices, hotels, shopping centres, etc.
• Monitoring electricity consumption in industrial projects to improve energy efficiency
• Dynamic load balancing and grid backfeed prevention for solar PV systems: in addition to monitoring the total consumption on the main input line, real-time monitoring of bidirectional currents can optimise loads and reduce solar energy discharges to the grid.