Smart energy meter mastersheet
On this page you can find all relevant information on the smart meters that we have tested and support.
Use the sidebar Contents list for ease of navigation.
Smart Energy Meters
description of what smart energy meters are and what they are for
Modbus RTU Smart Meters
Modbus RTU description
Carlo Gavazzi
Settings
Wiring
Model List / tech info
Siemens
Settings
Wiring
Model List / tech info
ABB
Settings
Wiring
Model List / tech info
Eastron
Settings
Wiring
Model List / tech info
Inepro
Settings
Wiring
Model List / tech info
Acrel
Settings
Wiring
Model List / tech info
Chint
Settings
Wiring
Model List / tech info
Entes
Settings
Wiring
Model List / tech info
Settings
Wiring
Model List / tech info
GoodWe
Settings
Wiring
Model List / tech info
Modbus TCP/IP (Network) Smart Meters
Modbus TCP meters allow for more flexibility in the installation. Since they use local network connectivity usually both wired and wireless options are available depending on the installation needs. The installation is also faster, since the meters need less space and work with the electrical cabinet, as the measurements are done via CT clamps that connect to the meter. It also allows for load balance in situations, where power cables have been prepared in advance, without preparing any data cables, or if the distances from electrical cabinet to the charger location are very long.
Shelly PRO-3EM
Wiring diagram
User and safety guide
Shelly Pro 3EM user and safety guide
Resources
Manufacturers documentation page
Certificates and conformity declarations
Technical data
| Type | Value |
|---|---|
| Physical | |
| Size (HxWxD): | 94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±0.02 in |
| Weight: | 62 ±1 g / 2.19 ±0.05 oz |
| Mounting: | DIN rail |
| Screw terminals max torque: | 0.4 Nm / 4.43 lbin |
| Conductor cross section: | 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded, and bootlace lugs) |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Shell material: | Plastic |
| Color: | White |
| Environmental | |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| Electrical | |
| Power supply voltage AC: | 100 - 260 V, 50/60 Hz |
| Power supply voltage DC: | N/A |
| Power consumption: | < 3 W |
| External protection: | Tripping characteristic B or C,
16A max. rated current, min. 6 kA interrupting rating, energy limiting class 3 |
| Sensors, meters | |
| Internal-temperature sensor: | Yes |
| Voltmeters (RMS for each phase): | 100 - 260 V |
| Voltmeters accuracy: | ±1 % |
| Ammeters (RMS via CT for each phase and the Neutral): | 0 - 120 A |
| Compatible CT | CT 120A |
| Ammeters accuracy: | ±1 % (2 - 120 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A) |
| Power and energy meters: |
|
| Channel-to-channel calibration minimum load | 500 W per channel |
| No load threshold: | 30 VA per channel |
| Measurement data storage: | At least 60 days of 1 min data resolution |
| Data export: |
|
| Radio | |
| RF band: | 2400 - 2495 MHz |
| Max. RF power: | <20 dBm |
| Wi-Fi protocol: | 802.11 b/g/n |
| Wi-Fi Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors
(Depends on local conditions) |
| Bluetooth Protocol: | 4.2 |
| Bluetooth Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions) |
| MCU | |
| CPU: | ESP32-D0WDQ6 |
| Flash: | 16 MB |
| Firmware capabilities | |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |
| CoAP: | No |
HomeWizard
Datasheet
Home Wizard P1 Meter Datasheet
Instructions
Set up guide Compatibility Compatible energy meters
Technical data
| Weight | 60 g |
|---|---|
| SKU | HWE-P1-AU |
| Compatibility | The P1 meter supports most modern meters in Europe. To make sure it's compatible, check the compatibility link. |
| Phases | 1 & 3 Phases |
| Connection | Wi-Fi 2.4GHz b/g/n |
| Usage | IP51 (indoor) |
| Power consumption | < 1 Watt |
| Power supply | No external power supply needed on SMR5 smart meters. USB-C power supply required for older smart meters (sold seperately) |
| Measurements | Electricity import/export, gas |
| Data frequency | Electricity up to every second, gas per 5 minutes (on SMR5 smart meters) |
| Data encryption | Yes |
| Local API | Yes |
| Bridge/hub required | No |
| History | Energy usage history of the past 12 months
Extend your energy usage history with an Energy+ subscription |
Mobile app setup
Mobile app setup progress with screenshots