Zemismart SPM02-D2TZ | 3-phase 63A - Zigbee Smart Energy Meter

The Zemismart SPM02-D2TZ is a compact 3-phase smart energy meter that provides real-time insight into your power consumption per phase. With a width of 53mm and dimensions of 53 x 21 x 46 mm, this Zigbee energy meter fits perfectly above your 3-phase circuit breaker or main connection, without taking up extra space in the meter cupboard. Measures voltage, current, power, power factor and energy consumption of all three phases with an accuracy of 1% . Perfect for Home Assistant (via Zigbee2MQTT), Homey (via the official Zemismart app), Tuya Smart Life and Domoticz. The measurement data is updated every 5 seconds and is ideal for building your own Dynamic Load Balancing automations , for example to pause your 3-phase charging station in the event of an impending overload. The Zemismart SPM01-D2TZ is available for 1-phase monitoring.

Key Features

Compact 53mm width fits above 3-phase circuit breakers
Measuring 53 x 21 x 46 mm (W x H x D), the SPM02-D2TZ fits perfectly above standard 3-phase circuit breakers and mains connections. Mount it directly above your 3-phase RCD or main circuit breaker to measure power consumption per phase without taking up extra space in the meter cupboard. Its compact design supports a wide voltage range (110-240V AC per phase), ideal for Dutch 3-phase connections (3x230V) and international installations.

Measurement data for self-built Dynamic Load Balancing
The SPM02-D2TZ measures real-time power consumption across all three phases with a 5-second update interval. This fast measurement data allows you to build your own Dynamic Load Balancing automations in Home Assistant, Homey, Domoticz, or Tuya. For example, receive a notification when consumption per phase becomes too high, or automatically pause your 3-phase charging station to prevent overloading your main circuit breaker. The SPM02-D2TZ provides the data; you define the logic.

Homey integration via official Zemismart app
The SPM02-D2TZ works perfectly with Homey via the official Zemismart app from the Homey App Store. Use the 3-phase energy meter in Flows to create automations based on power consumption, power, and voltage per phase. Trigger actions when power exceeds the set limit, or create graphs of your energy consumption per hour, day, or month.

Home Assistant integration via Zigbee2MQTT
The SPM02-D2TZ supports Zigbee 2MQTT out of the box and instantly displays all measured values ​​per phase in Home Assistant. Create energy dashboards, consumption-based automations, and detailed hourly, daily, and monthly graphs.
Note: Does not work with ZHA, only with Zigbee2MQTT.

High-precision measurements within 1% tolerance
Measure voltage, current, power, and energy consumption per phase with 1% accuracy according to IEC 61557-12 Class 1. Reliable measurements for professional energy management and accurate cost calculations.

Alarm notifications for deviations
Set alarms for excessively high/low voltage per phase, high power, or high consumption. Receive notifications in your smart home app when values ​​deviate, so you can intervene immediately if problems arise.

Technical specifications

• Model: Zemismart SPM02-D2TZ (3-phase version)
• Dimensions: 53 x 21 x 46 mm (W x H x D)
• Width: 53mm (fits above 3-phase circuit breakers)
• Phases: 3-phase 4-wire (3P+N system, L1+L2+L3+N)
• Connectivity: Zigbee (Tuya compatible)
• Compatible with: Zigbee2MQTT, Home Assistant, Homey (official Zemismart app), Tuya Smart Life (Tuya Zigbee Hub required), Domoticz (with Zigbee4Domoticz plugin)
• Not compatible with: ZHA (Zigbee Home Automation)
• Update interval: 5 seconds (fast reporting)
• Voltage: 110-240V AC per phase, 50/60 Hz (suitable for 3x230V systems)
• Base current (Ib): 10A per phase
• Maximum current (Imax): 63A per phase
• Starting current: 50mA
• Nominal insulation voltage: 250V
• Measurement accuracy: Class 0.5 (voltage), Class 1 (current, power, energy) according to IEC 61557-12
• Measured values: Voltage, current, power, power factor per phase, total energy
• Alarms: Over/under voltage, high power, high consumption
• Protection class: IP20
• Operating temperature: -25°C to 60°C
• Overvoltage category: III
• Impulse voltage: 4kV
• Power consumption: 0.5W normal, 1W during pairing
• Also available: Zemismart SPM01-D2TZ (1-phase version)

Practical applications

Self-built Dynamic Load Balancing for 3-phase charging stations
Measure real-time power consumption across all three phases with a 5-second update and use this data to build your own automations in Home Assistant, Homey, Domoticz, or Tuya. For example, if total consumption exceeds 80% of your main fuse, automatically pause your 3-phase charging station. Or switch your charging station to single-phase charging when one phase is overloaded. The SPM02-D2TZ measures consumption, and you build the automation that suits your needs.

Main connection monitoring (3x25A)
Install the SPM02-D2TZ above the main connection of your meter box to monitor total consumption per phase. Thanks to the 5-second update interval, you can see real-time changes in power consumption per phase. Ideal for monitoring your entire household and preventing overload.

3-phase consumer monitoring
Place the SPM02-D2TZ above the circuit breaker of three-phase consumers such as heat pumps, electric charging stations, cooktops, or air conditioning systems. Discover energy guzzlers and see exactly which phases are under the most strain. At only 53mm wide, the meter fits in most meter boxes.

Solar panel monitoring (3-phase)
Measure consumption on specific 3-phase circuits and compare it with the yield from your solar panels. Build automations to automatically start large 3-phase loads when the sun is shining and sufficient solar energy is available.

Balancing phase distribution
Monitor consumption per phase and identify unbalanced loads. Build automations that alert you when one phase is loaded more than 20% higher than the others, allowing you to reposition large loads for better distribution.

Installation and use

1. Turn off the electricity at the main switch
2. Please refer to product images for correct installation and pay close attention to the flow direction.
3. Check that there is sufficient space above your 3-phase circuit breaker (53mm wide, 21mm high, 46mm deep required)
4. Mount the SPM02-D2TZ above the 3-phase circuit breaker or main connection
5. Connect the L1, L2, L3 (three phases) and N (neutral) cables to the SPM02-D2TZ according to the installation plan
6. Turn the power back on
7. Hold the reset button for 3-5 seconds until the LED flashes quickly (pairing mode)
8. Add the meter in Zigbee2MQTT, Homey (via Zemismart app), Tuya app (with Tuya Zigbee Hub) or Domoticz (with Zigbee4Domoticz plugin)
9. Configure alarms and graphs in your chosen platform

Note: Installation must be carried out by a certified electrician in accordance with NEN1010 standards. Never work on the meter box without switching off the main switch. Check the current direction and phase assignment (L1, L2, L3) on the product images for correct installation.

Homey integration via Zemismart app

The Zemismart SPM02-D2TZ works with Homey via the official Zemismart app from the Homey App Store. After installing the app and connecting the energy meter, you'll see the following information for each phase in Homey:

• Power (capacity) - Current consumption in watts per phase
• Voltage (voltage) - Current voltage in volts per phase
• Current (stroom) - Current in amperes per phase
• Energy (energy) - Total consumption in kWh
• Power Factor - Efficiency of power usage per phase

Use the SPM02-D2TZ in Homey Flows to create automations per phase. For example:

Flow example 1: If the power on one of the phases exceeds 5000W, send a push notification and switch off the 3-phase charging station.
Flow example 2: If the voltage on any of the phases drops below 220V, send a warning.
Flow example 3: Balance load: if one phase is loaded more than 80% higher than the other phases, send a notification.

The Zemismart app for Homey supports both Homey Pro and Homey Bridge . The 5-second updates ensure fast responses in your flows.

Home Assistant integration via Zigbee2MQTT

The Zemismart SPM02-D2TZ is automatically recognized in Zigbee2MQTT and provides the following measured values ​​per phase in Home Assistant:

• voltage_X, voltage_Y, voltage_Z - Voltage per phase (V)
• current_X, current_Y, current_Z - Current per phase (A)
• power_X, power_Y, power_Z - Power per phase (W)
• energy - Total energy consumed (kWh)
• Power factor - Labor factor
• Link quality - Zigbee signal strength

This data is updated every 5 seconds and can be used directly in the Home Assistant Energy Dashboard for detailed consumption graphs per phase. You can create your own automations for Dynamic Load Balancing. For example:

Automation example: If the SPM02-D2TZ measures that the total power (sum of X + Y + Z) exceeds 16kW (70% of 3x25A main connection), send a notification and automatically pause your 3-phase charging station via a switch entity. When consumption drops below 12kW again, the charging station automatically resumes.

Important: The SPM02-D2TZ does not work with ZIGBEE Home Automation (ZHA). Use Zigbee2MQTT for Home Assistant integration.

Tuya Smart Life integration

To use the Tuya Smart Life app, you need a Tuya Zigbee Hub (not included). Compatible hubs include:

• Tuya Zigbee Gateway
• Must Zigbee Hub
• Smart Life Zigbee Gateway
• Other Tuya-compatible Zigbee hubs

After connecting to your Tuya Zigbee Hub, you'll see real-time readings per phase (updated every 5 seconds), energy statistics, and alarms in the Smart Life app. You can also create your own scenes and automations to pause devices when power consumption exceeds the specified level per phase.

Domoticz integration

The SPM02-D2TZ works with Domoticz via the Zigbee4Domoticz plugin . After installing the plugin, the 3-phase energy meter is automatically recognized, and you can use all measured values ​​per phase (updated every 5 seconds) for graphs, custom automations, and energy monitoring in Domoticz.

SPM02-D2TZ vs SPM01-D2TZ

SPM02-D2TZ (3-phase): Measure all three phases simultaneously (L1, L2, L3). Ideal for mains connections, 3-phase consumers, heat pumps, and large systems. Dimensions: 53 x 21 x 46 mm (W x H x D).

SPM01-D2TZ (1-phase): Measures a single phase. Ideal for individual groups and single-phase circuits. Dimensions: 21 x 18 x 48 mm (H x W x D), more compact than the SPM02-D2TZ.

Choose the SPM02-D2TZ for three-phase applications, mains connection, heat pumps, and large consumers. Choose the SPM01-D2TZ for individual circuits and single-phase monitoring. Both operate identically, only the number of phases measured differs.

Plus points

• Compact 53mm width fits above 3-phase circuit breakers
• 3-phase monitoring of all three phases simultaneously
• Fast updates every 5 seconds for real-time monitoring per phase
• Official Homey app for easy integration with Homey Pro and Homey Bridge
• Provides measurement data for custom-built Dynamic Load Balancing automations
• High accuracy within 1% tolerance for energy measurement (IEC 61557-12 Class 1)
• Suitable for Dutch 3-phase connections (3x230V)
• Native Zigbee2MQTT support for Home Assistant
• Works with Domoticz via Zigbee4Domoticz plugin
• Measures up to 63A per phase, suitable for main connections
• Alarm notifications for abnormal voltage and consumption per phase
• Energy statistics per hour/day/month
• Low power consumption (0.5W typical)
• Affordable for 3-phase monitoring

Negative points

• Does not work with ZHA (only Zigbee2MQTT for Home Assistant)
• Tuya Zigbee Hub required for Smart Life app (not included)
• Installation requires a certified electrician and knowledge of 3-phase systems
• Larger than SPM01-D2TZ (53mm vs 18mm wide)
• Zigbee hub/coordinator required for use
  

Frequently Asked Questions

Does the Zemismart SPM02-D2TZ work with Homey?

Yes, the SPM02-D2TZ works perfectly with Homey via the official Zemismart app from the Homey App Store. The app works with both Homey Pro and Homey Bridge. You can use the 3-phase energy meter in Flows for automations based on power, voltage, and energy consumption per phase.

Does the Zemismart SPM02-D2TZ work with Home Assistant?

Yes, via Zigbee 2MQTT. The SPM02-D2TZ is automatically recognized and provides all measured values ​​per phase as entities in Home Assistant. ZHA is not supported.

What is the difference between SPM01-D2TZ and SPM02-D2TZ?

The SPM01-D2TZ is for single-phase monitoring (18mm wide, 21x18x48mm). The SPM02-D2TZ is for three-phase monitoring (53mm wide, 53x21x46mm). Both operate in the same way and have the same functions; only the number of phases measured differs. Choose the SPM02-D2TZ for main connections, heat pumps, and three-phase consumers. Choose the SPM01-D2TZ for individual circuits.

How quickly are the measurements updated?

The SPM02-D2TZ sends an update to your ZigBee hub/coordinator every 5 seconds . This enables real-time monitoring per phase and is ideal for Dynamic Load Balancing automations where fast response is important.

Can the SPM02-D2TZ automatically control Dynamic Load Balancing?

No, the SPM02-D2TZ is a measuring instrument that only provides data per phase. You need to build Dynamic Load Balancing yourself using automations in Home Assistant, Homey, Domoticz, or Tuya. The SPM02-D2TZ measures consumption per phase every 5 seconds; you build the logic that, for example, pauses your charging station or switches to single-phase charging in the event of overload.

Do I need a Tuya Zigbee Hub?

Only if you want to use the Tuya Smart Life app. For Home Assistant (via Zigbee2MQTT), Homey (via the Zemismart app), or Domoticz (via Zigbee4Domoticz), use your own Zigbee coordinator/dongle or the built-in Zigbee in Homey Pro.

Does this work with ZHA?

No, the SPM02-D2TZ does not work with ZIGBEE Home Automation (ZHA). Use ZigBEE2MQTT for Home Assistant integration.

How many SPM02-D2TZ meters can I use?

As much as your Zigbee network can handle. With a good Zigbee coordinator and routers, you can install multiple 3-phase meters in a single meter box to monitor different circuits.

Does an electrician need to install this?

Yes, installation in the meter box must be carried out by a certified electrician in accordance with NEN1010 standards. Never work on the meter box without switching off the main switch. Pay close attention to the phase assignment (L1, L2, L3) during installation.

Does this fit above any 3-phase circuit breaker?

The SPM02-D2TZ is 53mm wide and fits above 3-phase circuit breakers. Before installation, check for sufficient space (53mm wide, 21mm high, and 46mm deep required).

Does this work with Domoticz?

Yes, via the Zigbee4Domoticz plugin. After installing the plugin, the SPM02-D2TZ is automatically recognized in Domoticz.

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