Sonoff · POWR320D

Sonoff POW Elite POWR320D 20 A Wi-Fi DIN-rail power meter switch with LCD display

Name: Sonoff POW Elite POWR320D 20 A Wi-Fi DIN-rail power meter switch with LCD display
Brand: Sonoff
SKU: SONOFF-POWR320D
Price: 599 MDL
Availability: InStock

599 MDLIn stock

Energy metering relays

Wi-Fi

Manufacturer image shared by the series. Check the colour, dimensions and variant in the model name and specifications.

599 MDLIn stock

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Max load current per channel: 20 A
Connectivity: Wi-Fi
Mounting: DIN rail (panel)

A storage water heater keeps its relay loaded for hours; the POWR320D is rated up to 20 A (factory protection at 4500 W), needs a breaker no larger than C20A upstream and logs every kilowatt-hour of heating, hour by hour.

No separate hub required

Connects straight to the router over Wi-Fi; no gateway needed.

Source ↗

28 specifications from manufacturer documents

We deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.

The right choice starts with specifications

Device passport

SKU: SONOFF-POWR320D · Document model: POWR320D

Specifications checked against the linked manufacturer documents. Load limits, package details and measurement conditions are retained.Checked 18 October 2026

Power and load6

Max load current per channel — what it means The highest current the relay switches and measures on one channel. As a guide at 230 V: 16 A ≈ 3.7 kW, 20 A ≈ 4.6 kW, 25 A ≈ 5.8 kW, 32 A ≈ 7.4 kW — compare with your water heater, underfloor heating or heater.	20 AInput and output: 100–240 V ~, 50/60 Hz, max. 20 A [1]
Max power per channel (resistive) — what it means Maximum resistive load per channel per the documentation: water heater, heater, underfloor heating. For motors and large power supplies the permitted power is lower.	4500 WMaximum allowable load power per the built-in protection (enabled by default) [1]
Max total current — what it means Current the device handles across all channels at once. On multi-channel models the total is often lower than per-channel current × number of channels.	20 ASingle channel — total equals the channel current [1]
Supply voltage — what it means The supply voltage (and current, if stated) as the maker gives it. It must match your mains or adapter.	100–240 V AC, 50/60 Hz [1]
Standby power — what it means How much power the device draws on its own while idle. It matters for devices that run around the clock.	Not stated by the manufacturer
Rated impulse voltage	2500 V [1]

Connectivity and compatibility7

Connectivity — what it means The wireless link or network the device uses. Wi-Fi connects straight to the router; Zigbee, Thread and Bluetooth Mesh work through a hub or gateway.	Wi-Fi2.4 GHz Wi-Fi (IEEE 802.11 b/g/n), no 5 GHz. The phone's Bluetooth is only needed when first adding the device in eWeLink [1]
Hub required — what it means Whether the device needs a separate hub, gateway or coordinator to work in a smart home. If so, it is sold separately unless stated otherwise.	No hub neededConnects straight to the router over Wi-Fi; no gateway needed [1]
Matter support — what it means Whether the device supports the Matter standard, directly or through a bridge. Matter lets you add it to Apple Home, Google Home, Alexa and Home Assistant.	Not stated by the manufacturer
Works without internet — what it means Whether the device keeps working over the local network or through a hub when the internet is down. Cloud features (remote access, voice assistants) need the internet.	YeseWeLink LAN mode: the app controls the relay directly through the router, without the cloud. Without internet, notifications, logs, updates, scenes and sharing do not work [1]
Home Assistant — what it means How the device connects to Home Assistant: a built-in integration, a Zigbee coordinator, Matter or the maker’s cloud integration.	Not stated by the manufacturer
App — what it means The maker’s app used to set up and control the device.	eWeLink [1]
Wi-Fi	IEEE 802.11 b/g/n, 2.4 GHz [1]

Housing and installation7

Mounting — what it means How and where it is installed: in a wall box, on a wall or ceiling, on a DIN rail, on a table or in a socket.	DIN rail (panel)Clips onto a 35 mm DIN rail in the panel [2]
Terminal wire size — what it means Which wire sizes the terminals accept, in mm². High loads need cable of matching size, chosen by an electrician for the current and run length.	1.5–6.0 mm²Power terminals [1]
Dimensions (W × H × D) — what it means The device’s size in millimetres as the maker states it. Check that it fits the wall box, niche or shelf.	98 × 54 × 31 mmPer the manual, help page, store page and SONOFF 2026 catalogue [2]
Housing material	Polycarbonate (PC), flammability class V0 [1]
Upstream circuit breaker	A circuit breaker of max. C20 A on the supply line is required [1]
Weight — what it means The device’s weight without packaging, per the maker.	120 g [3]
Certifications — what it means Standards and certifications the maker lists for this model (for example CE, RoHS, Zigbee 3.0, Matter).	TÜV, CE, FCC, RoHS, SRRC, WWA, CFH [3]

Control and features7

Channels — what it means How many separate circuits the relay switches and measures. A multi-channel unit tracks each panel circuit separately.	1 [1]
Built-in display — what it means A screen on the housing shows power, voltage and consumption right at the panel, no phone needed.	YesA 43 × 33 mm LCD shows voltage, current, power and cumulative kWh; the on-screen counter rolls over to 0 after 9999 kWh or can be reset in the app [1]
Cut-off on set limits — what it means The device switches the load off by itself if current, power or voltage limits set in the app are exceeded. It does not replace the circuit breaker in the panel.	YesPower, voltage and current thresholds are set in eWeLink; 4500 W / 20 A protection is on by default. Does not replace the panel circuit breaker [1]
Wired wall switch input — what it means Whether you can keep an ordinary wall switch or push button and wire it to the module, so the light works from both the switch and the app. Shows which switch types are supported; on dimmers a momentary button usually also adjusts brightness when held.	No inputTerminals are L In, L Out and two N only — there is no wall-switch input; the housing has its own button [1]
Display	LCD, 43 × 33 mm [1]
Power-on state after outage	On / Off / Last state (set in eWeLink) [1]
Inching mode	YesIn eWeLink: automatic off or on after a set time, from 0.5 s to 59 min 59.5 s [1]

Measurement and detection3

Measured values — what it means Which values the device reports in the app. Energy in kWh lets you work out costs; voltage helps spot sags and surges on the line.	Voltage (V), current (A), power (W), energy (kWh)Real-time voltage, current and power, cumulative consumption (kWh) [1]
Measurement accuracy — what it means Measurement error per the documentation, e.g. ±2 % for power. Unless meter certification (such as MID) is stated, readings are for tracking use, not for billing with the supplier.	Not stated by the manufacturer
History and cost tracking	Hourly history for 6 months, export to Excel (.xlsx) from eWeLink; totals for today, yesterday and the current month [1]

Operating conditions1

Operating temperature — what it means The air temperature range the device is rated for. The lower limit matters outdoors, on balconies and in unheated rooms.	−10…40 °C [1]

Package contents1

Manufacturer warranty — what it means The warranty period the maker states. Confirm warranty terms in Moldova with the seller.	24 months“2-Year Hassle-Free Warranty” on the official SONOFF store page; warranty terms of the regional seller may differ [4]

Manufacturer documents

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Delivery and stock

We deliver across Moldova. Availability, delivery timing and cost are confirmed with a manager before order fulfilment.

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A website order is submitted for confirmation without charging your card. The payment method and final amount are agreed with a manager before payment.

Warranty and documents

The warranty is at least 12 months. The exact period and conditions for equipment and installation work are stated in the sales documents and the accepted proposal. Further support is agreed for each project.

Can I return the product?

Current conditions are published on the Return policy page. Email office@casasmart.md with your order number for the steps relevant to your situation. Statutory consumer rights continue to apply.

Delivery, payment and returns

In your home

See consumption. Control what stays on.

A whole-home meter does not show which appliances consume more. Separate monitoring helps reveal habits and useful changes.

See the complete solution

An electrical panel, a washing machine and an electric car charging in the garage — An example routineSee which circuit uses electricity.

What to check before buying

Check for a neutral in the back box, its depth, the rated load and the manufacturer wiring diagram.
Check Wi-Fi band, app, region and internet requirements.

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