Modular | smart | digital energy meter | 20A | 100-240V | DIN | Wi-Fi | SONOFF | POW Elite | POWR320D

Code: POWR320D

Barcode: 6920075777505

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Price 27.80 € VAT incl.
( 22.98 € VAT excl. )

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SONOFF POWR320D (POW Elite 20A) is a smart Wi-Fi relay with energy metering and an LCD display, mounted on a DIN rail. It switches loads up to 20 A (4400 W), shows power, voltage, current and kWh, and supports overload limits, schedules, eWeLink, Alexa and Google Assistant.

Product description

Modular | smart | digital energy meter | 20A | 100-240V | DIN | Wi-Fi | SONOFF | POW Elite | POWR320D

SONOFF POWR320D (POW Elite 20A) is a smart Wi-Fi relay with energy metering and an LCD display, mounted on a DIN rail. It switches loads of up to 20 A and shows power, voltage, current and consumed energy in real time.

Key idea:
A panel meter and a remotely controlled relay in one module: you see how much the water heater or heating uses and can switch it off, limit it or control it by schedule.

Load
20 A / 4400 W

Metering
V, A, W, kWh

Display
LCD

Mounting
DIN rail

How it works

The load line is connected via POWR320D: phase and neutral at the input, the controlled load at the output. The relay switches the line on or off, and the metering circuit continuously calculates consumption.

The LCD shows current power, voltage, current and energy, and the eWeLink app shows history and daily and monthly statistics.

Overload limits, schedules and scenes can be set: e.g. switch off the load when power is exceeded or switch it on during cheaper tariff hours.

Why choose POWR320D?
A 20 A relay, accurate metering and a display in the panel make it possible to control larger loads such as water heaters or heating cables and see their costs clearly.

Technical specifications

Product type	Smart DIN Wi-Fi relay with energy metering and LCD display
Manufacturer / model	SONOFF POWR320D (POW Elite 20A)
Supply voltage	100–240 V AC, 50/60 Hz
Max. current	20 A
Max. power	4400 W (230 V)
Measured values	voltage, current, power, consumed energy
Display	LCD
Wireless	Wi-Fi IEEE 802.11 b/g/n, 2.4 GHz
Apps and integrations	eWeLink, Amazon Alexa, Google Assistant
Housing	PC V0, white
Dimensions	98 × 54 × 31 mm
Mounting	DIN rail

Main functions

Real-time energy metering – power, voltage, current and kWh.
LCD display – data visible right in the panel.
Remote control – the load is switched on or off from the app.
Overload and limit settings – the load is switched off when set limits are exceeded.
Schedules and scenes – control by time, tariffs or sensors.
Consumption statistics – daily and monthly reports in the app.

Where is it used?

Water heaters and boilers
Electric underfloor heating
Heat pumps and air conditioners (via a contactor if needed)
EV charging lines (by power)
Office and commercial lines
Solar self-consumption management

Use by need

For homeowners.
You see the costs of the water heater or heating and control them by schedule or a cheaper tariff.

For electricians.
A modular DIN solution – meter and relay in one, without separate devices.

For smart home integrators.
Energy data and limits allow saving and load management scenarios.

Practical use

If a 2 kW water heater should heat only at night, POWR320D is installed in the panel on the heater line, a schedule of 23:00–07:00 is set in the app, and the saved consumption is visible on the display and in the history.

Pros

20 A relay for larger loads
Accurate energy metering
LCD display in the panel
DIN mounting
Overload limits and schedules
Alexa and Google Assistant support

Cons / limitations

2.4 GHz Wi-Fi only
A metal panel can weaken the signal
Inductive loads may require a contactor
Does not replace a circuit breaker

Safety and installation notes

Switch off the main supply and check for voltage before installation
Installation must be done by a qualified electrician
Protect the line with an appropriate circuit breaker
Do not exceed a 20 A load
Use a contactor for large inductive loads

Quick selection guide

20 A / 4400 W

Energy metering

LCD display

Wi-Fi 2.4 GHz

DIN rail

Overload limits

Suitable when you need:

meter and control a water heater or heating
limit the load by power
control a line by schedule or tariff

Check before use:

the load current and type
DIN rail space
the Wi-Fi signal in the panel
whether a contactor is needed for an inductive load

Important reminder: POWR320D is not a protective device – the line must be protected by a circuit breaker, and by an RCD in damp areas.

FAQ

What is the maximum load?
Up to 20 A, i.e. about 4400 W at 230 V.

Does it show consumption on the display?
Yes, the LCD shows power, voltage, current and energy.

Can a power limit be set?
Yes, the load can be switched off when the set limit is exceeded.

Is it suitable for a water heater?
Yes, for water heaters and heating cables up to 20 A.

Will it work in a metal panel?
Usually yes, but metal doors can weaken the Wi-Fi signal – check the connection.

How does it differ from POWR316D?
POWR320D switches up to 20 A, POWR316D up to 16 A.

Modular | smart | digital energy meter | 20A | 100-240V | DIN | Wi-Fi | SONOFF | POW Elite | POWR320D

SONOFF POWR320D (POW Elite 20A) is a DIN Wi-Fi relay with energy metering and an LCD display: up to 20 A, overload limits, schedules and statistics in the eWeLink app.

Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

Attributes

Manufacturer

Sonoff

CE certificate – a guarantee of safety, quality, and compliance

This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.

CE certification means that the product has been evaluated according to the main criteria:

Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purpose

CE marking allows this product to:

be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environments

The CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.

What does this mean for you as a buyer?

Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions

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