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Sonoff Basic DIN Rail Zigbee Smart Switch

Sonoff Basic DIN Rail Zigbee Smart Switch

A single-channel DIN-rail switch with double-pole isolation, live power monitoring and Zigbee 3.0, built to put one high-load circuit under smart control.

4.5
111 ratings
$19.90
1

One relay per circuit you automate.

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Launch Year: 2026

Model: BASIC-ZB1GSP

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Our review

Sonoff Basic DIN Rail Zigbee Review: A 32A Panel Relay With Real Energy Metering

The verdict

The Sonoff Basic DIN Rail Zigbee (BASIC-ZB1GSP) is a 32A single-channel relay made to clip onto a DIN rail inside an electrical distribution board, so it belongs to the circuit it controls rather than to a wall plate. Zigbee 3.0 brings it into Home Assistant through Zigbee2MQTT or ZHA, and through a SONOFF or eWeLink hub into Alexa, Google Home, SmartThings, and Apple Home or Matter via a SONOFF bridge. It pairs that remote switching with live voltage, current, power and energy data and true double-pole isolation of live and neutral. The trade-offs are that it is not a circuit breaker, it always needs a Zigbee hub, and Sonoff publishes only a single general 32A rating with no separate inductive or capacitive figures.

Best for
  • Distribution board installs
  • Home Assistant users
  • High-load circuits
  • Energy monitoring
  • Zigbee mesh builders
1

One relay per circuit you automate.

Buy on Amazon USACheck price

Pros

  • Rated 32A and up to 7680W for one high-power circuit
  • Real-time voltage, current, power and energy monitoring with stored history and export
  • Zigbee 3.0 with full Zigbee2MQTT and Home Assistant support
  • Double-pole switching isolates both live and neutral
  • Physical button and status LEDs for local control
  • Standard 35mm DIN rail mounting inside a distribution board
  • Also acts as a Zigbee router to extend network coverage

Cons

  • Not a replacement for a circuit breaker or RCBO; upstream 32A protection is required
  • Requires a Zigbee hub or coordinator; it will not pair directly to a phone or Wi-Fi
  • No external switch input, so a wired wall switch cannot toggle it
  • Only a single general 32A rating, with no separate inductive or capacitive figures published
  • Single channel with no interlock mode for two-way motors
  • DIN rail is uncommon in US residential panels, so an enclosure or panel build is usually needed

Who is the Sonoff Basic DIN Rail Zigbee for?

This is a distribution-board component, not a plug-in switch: it mounts on a standard 35mm DIN rail behind the miniature circuit breaker and switches one single-phase circuit rated up to 32A and 7680W. Buyers use it for loads that live on their own breaker, such as immersion and water heaters, heat pumps, workshop or garage socket circuits, pool pumps, motorhome and campervan feeds, and EV charging points. It is a mains installation, so the manual asks for a professional electrician, and it needs a neutral conductor because it switches both L and N. For someone who just wants to make one lamp smart, the simpler in-line relays in this catalog are cheaper and easier.

What buyers love

The recurring theme across reviews is how little friction there is in getting it running on a Zigbee network: owners describe the DIN-rail fit and the screw terminals as straightforward and the pairing with Zigbee2MQTT or a hub as instant, with a stable signal afterwards. Energy monitoring is the feature that keeps coming up, with buyers reading voltage, current, wattage and accumulated kWh in Home Assistant and building automations and cost tracking on top of it. The high 32A rating is a draw for those switching heavy circuits, and the safety design earns repeated mentions: the double-pole output cuts both live and neutral for full isolation, the unit stays cool under load, and long-time Sonoff users rate the build and the value highly. Several reviewers also note the physical button as a useful manual fallback and the Zigbee radio as a bonus router that extends the mesh.

What to know before you buy

The most important point, repeated by buyers and in the manual, is that this is a smart switch and not a protective device: it does not replace a circuit breaker or an RCBO, and a 32A MCB or RCBO must sit upstream of it. It is also strictly Zigbee 3.0, so it will not pair straight to a phone or to Wi-Fi and needs a hub or coordinator (a SONOFF or eWeLink gateway, an Echo with a built-in Zigbee radio, a SmartThings hub, or a Home Assistant dongle) before it has any remote access at all. There is no external switch terminal, so a conventional wall switch cannot toggle it; the button on the case, the app, voice control or an automation does. It requires a neutral wire, it is single-phase 100-240V only, and Sonoff publishes a single 32A general rating without separate inductive or capacitive figures, so motors, transformers and LED drivers should be sized conservatively. A few owners also note the relay clicks audibly when it toggles, the small IN and OUT markings, and tight wire clearance inside shallow enclosures.

Is the Sonoff Basic DIN Rail Zigbee worth it?

Judged as a way to put one dedicated circuit under Zigbee control, the BASIC-ZB1GSP is a coherent and inexpensive package: 32A switching, live energy monitoring, double-pole isolation, a physical button and status LEDs, and deep Home Assistant support through Zigbee2MQTT. It sits in a specific niche between simple in-line relays on one side and full metering hardware on the other. It is a strong pick when a fixed circuit needs remote control, scheduling and consumption data and the panel has a spare DIN slot, a neutral and a Zigbee coordinator; it is not the right pick for a single appliance, for a circuit without a neutral, for a Wi-Fi-only setup, or where a wall switch must keep working alongside the smart control.

Frequently asked questions

Does the Sonoff Basic DIN Rail Zigbee need a hub?

Yes. It is a Zigbee 3.0 device and has no Wi-Fi radio, so it needs a Zigbee hub or coordinator (a SONOFF or eWeLink gateway, a Zigbee-enabled Echo, a SmartThings hub, or a Home Assistant dongle) before it can be controlled remotely.

Does the Sonoff Basic DIN Rail Zigbee need a neutral wire?

Yes. It wires L and N in and L and N out and switches both poles, so it needs a neutral conductor at the distribution board.

Can it replace a circuit breaker?

No. It is a smart switch, not a protective device. The manual requires a suitable MCB or RCBO upstream of it.

What load can the Sonoff Basic DIN Rail Zigbee switch?

It is rated 100-240V~ 50/60Hz, 32A Max, with a maximum load of 7680W on a single phase. Sonoff publishes only that general rating, so inductive and capacitive loads should be sized conservatively.

Does it support energy monitoring?

Yes. It reports voltage, current, power and energy consumption in real time, keeps daily, weekly, monthly and 180-day history, and allows the data to be exported.

Which ecosystems does it work with?

Home Assistant reads it through Zigbee2MQTT or ZHA. Through eWeLink hub account linking it reaches Alexa, Google Home and SmartThings, and via a SONOFF Matter bridge (ZBBridge-U, iHost or eWeLink CUBE) it reaches Apple Home and Matter.

At a glance

Summary

Everything this relay supports, grouped by category.

Size & Materials
3.3 × 2.6 × 0.7 in (84 × 66.5 × 18 mm)3.3 oz (94 g)
Power
Neutral Required
Safety
Overvoltage protectionOvercurrent protectionOverpower protection
Connectivity
Zigbee (Zigbee Hub required)
Integrations
Google HomeAlexaApple HomeKit (SONOFF Hub required)Samsung SmartThingsHome AssistantMatter (SONOFF Hub required)
Features
Relay Channels (1)Energy MonitoringPower Off MemoryWireless Switch ModeWet Contact ModeDIN rail mountOn/Off ButtonZibgee RouterOTA

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Company
Sonoff logo

Sonoff

4.3/ 5 avg ratingChina flagHeadquartered in China

Sonoff, a brand of ITEAD, makes affordable smart home devices including Wi-Fi and Zigbee switches, smart plugs, relays, sensors and the ZBBridge and Zigbee dongles. Its products work through the eWeLink app and integrate with Alexa and Google Home, and are popular with DIY users and Home Assistant fans for low-cost automation. Sonoff is well known for budget-friendly switches and Zigbee hardware.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Dimensions

3.3 × 2.6 × 0.7 in (84 × 66.5 × 18 mm)

Weight

3.3 oz (94 g)

Power
AC Power

YES

Rated 100-240V~ 50/60Hz 32A Max, single-phase only per the specification table

AC Load Voltage

100-240V

Resistive Load

YES

The specification table rates the relay 32A Max with a maximum load of 7680W

Max Resistive Load Power (Per Channel)

7680W

Max Resistive Load Current (Per Channel)

32A

Inductive Load

?

Max Inductive Load Power (Per Channel)

?

Max Inductive Load Current (Per Channel)

?

Capacitive Load

?

Max Capacitive Load Power (Per Channel)

?

Max Capacitive Load Current (Per Channel)

?

DC Power

NO

Mains AC only: the specification table limits it to single-phase 100-240V use

Max DC Load Power (Per Channel)

-

Max DC Load Current (Per Channel)

-

DC Load Voltage

-

Neutral Required

YES

It wires L and N in and out (double-pole switching), so a neutral conductor is required

Idle Consumption

?

Safety
Overheating protection

NO

Overvoltage protection

YES

Overload protection cuts output when a customizable voltage threshold is exceeded

Overcurrent protection

YES

Overload protection cuts output when a customizable current threshold (up to 32A) is exceeded

Overpower protection

YES

Overload protection cuts output when a customizable power threshold is exceeded

Connectivity
2.4 GHz WiFi

NO

5 GHz WiFi

NO

Bluetooth

NO

Z-Wave

NO

Zigbee

Zigbee Hub required

Zigbee 3.0 over IEEE 802.15.4, TLSR8656 chip, per the specification table and Zigbee2MQTT

Thread Protocol

NO

Radio Frequency

NO

Integrations
Google Home

YES

The SONOFF knowledge center lists Google Home voice control (open/close) after the device is added to the eWeLink app and the account is linked

Alexa

YES

The SONOFF knowledge center lists Alexa voice control (open/close) through eWeLink account linking

Apple HomeKit

SONOFF Hub required

The product page states it works with Apple Home via a SONOFF Matter bridge (ZBBridge-U, iHost or eWeLink CUBE). Apple Home has no Zigbee radio of its own.

Samsung SmartThings

YES

The SONOFF knowledge center lists SmartThings voice control (open/close), and the compatibility table pairs it through the Aeotec Smart Home Hub V3 as a standard Zigbee device

Home Assistant

YES

Zigbee2MQTT supports this exact model and exposes state, power-on behaviour, inching, voltage, current, power and energy totals, plus the overload thresholds

Matter

SONOFF Hub required

The switch itself is Zigbee, not Matter: SONOFF republishes it into Matter through its own bridges (ZBBridge-U, iHost, eWeLink CUBE with a SONOFF Zigbee dongle).

Features
Relay Channels

1

Energy Monitoring

YES

Real-time monitoring of voltage, current, power and energy consumption, with 180 days of stored history and export

Power Off Memory

YES

Power-On State is a documented setting: ON, Off or Last state after an outage

Wireless Switch Mode

YES

No external switch terminal: the single circuit is switched from the app, Zigbee or an automation

Dry Contact Mode

NO

The double-pole output switches the live and neutral conductors, so the contact is not potential-free

Wet Contact Mode

YES

The output terminals carry the switched live and neutral wires to the load

Interlock/Cover/Roller mode

NO

DIN rail mount

YES

Standard 35mm DIN rail mounting inside an electrical distribution box

On/Off Button

YES

A physical button controls on/off and enters pairing mode on a long press

Automations

YES

Smart timer schedules, loop timers, inching and smart scenes in eWeLink

Zibgee Router

YES

The product page states it also functions as a Zigbee router to extend network coverage

OTA

YES

Zigbee2MQTT lists this device as supporting OTA updates

Required to work

You need a Zigbee hub for this

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Why it needs a Zigbee coordinator

The Sonoff Basic DIN Rail Zigbee Smart Switch speaks Zigbee, not Wi-Fi. On its own it cannot reach your phone, your voice assistant or any automation: it needs a Zigbee coordinator to join. These are the ones in our catalog that can run it.

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