Smart relay switch | no neutral | 1-channel | 6A | 100-240V | Zigbee 3.0 | SONOFF | ZBMINI-L2

Code: SONOFF-ZBMINI-L2

Barcode: 6920075778298

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Price 12.10 € VAT incl.
( 10.00 € VAT excl. )

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SONOFF ZBMINI-L2 is a Zigbee 3.0 relay that needs no neutral wire (1 channel, 6 A, min. 3 W) for installation in the box behind an existing switch. It works via a Zigbee hub (ZBBridge, NSPanel Pro, iHost, Home Assistant) and supports two-way control.

Product description

Smart relay switch | no neutral | 1-channel | 6A | 100-240V | Zigbee 3.0 | SONOFF | ZBMINI-L2

SONOFF ZBMINI-L2 (ZBMINI Extreme) is a Zigbee 3.0 relay that needs no neutral wire. It is installed in the box behind an existing switch and lets you control lighting by the switch, app, voice or automations via a Zigbee hub.

Key idea:
In older installations the switch box often contains only the phase and the wire to the luminaire. ZBMINI-L2 is designed exactly for that case – lighting becomes smart without pulling new cables. A Zigbee hub is required.

N wire
not required

Load
up to 6 A, min. 3 W

Connectivity
Zigbee 3.0 (hub required)

Dimensions
39.5 × 32 × 18.4 mm

How it works

The relay is wired in series with the load: the phase (L) comes in, the wire to the luminaire goes out, and the existing switch is connected to terminals S1/S2. No neutral wire is needed – the relay is powered through the load.

The relay is paired with a Zigbee hub (SONOFF ZBBridge, NSPanel Pro, iHost, ZBDongle with Home Assistant, Amazon Echo with Zigbee). It is then controlled with eWeLink or another hub app, by voice and by automations.

The result: lighting can be controlled by the switch and remotely, schedules or sunrise / sunset modes can be created, and two-way control on a staircase is also supported.

Why choose ZBMINI-L2?
It is one of the smallest Zigbee modules and fits into EU, 86 and 120 type boxes. It solves the most common retrofit problem – the absence of an N wire in the switch box.

Technical specifications

Product type	Zigbee 3.0 no-neutral relay (1 channel) for wall box installation
Manufacturer / model	SONOFF ZBMINI-L2 (ZBMINI Extreme)
Number of channels	1
Supply voltage	100–240 V AC, 50/60 Hz
Max. current	6 A
Minimum load	3 W
Suitable loads	LED, incandescent and halogen lamps (mainly resistive)
Neutral wire	not required
Wireless	Zigbee 3.0 (IEEE 802.15.4, 2.4 GHz)
Zigbee role	end device (does not repeat the signal)
External switch	latching or push-button, terminals S1/S2, two-way control
Compatible hubs	SONOFF ZBBridge-P / U, NSPanel Pro, iHost, ZBDongle-P / E (Home Assistant), Amazon Echo with Zigbee
Housing	PC V0
Operating temperature	-10 °C … +40 °C
Dimensions	39.5 × 32 × 18.4 mm
Installation	in EU / 86 / 120 type boxes, dry indoor locations

Main functions

Works without an N wire – suitable for old installations where the box contains only the phase and the wire to the luminaire.
Works with the existing switch – manual control remains; latching switches and push buttons are supported.
Two-way control – suitable for staircases and corridors with two switches.
Zigbee 3.0 – low-power communication and local automations via the hub.
Schedules and sun modes – the light switches on at sunset and off at sunrise.
Voice control – Amazon Alexa and Google Assistant via the hub.

Where is it used?

Lighting retrofits in old apartments and houses
Switch boxes without a neutral wire
Staircases and corridors with two switches
Bedroom and living room luminaires
Home Assistant systems with Zigbee
Rental properties without renovation

Use by need

For homeowners.
The light becomes smart without breaking walls or pulling new cables.

For electricians.
A solution for boxes without N – no need to run an extra neutral.

For Home Assistant users.
Works via ZHA or Zigbee2MQTT with a ZBDongle, without the cloud.

Practical use

If the switch box in an apartment contains only two wires and you want to control the ceiling light from the phone, install ZBMINI-L2 in the box behind the switch in series with the load, pair it with a Zigbee hub and set an evening schedule in the app.

Pros

No neutral wire required
Very small housing
Works with the existing switch and push buttons
Two-way control
Zigbee 3.0 – less Wi-Fi load
Compatible with Home Assistant

Cons / limitations

A Zigbee hub is required
Max. 6 A and min. 3 W load
Not suitable for inductive loads (fans, motors)
End device – does not extend the Zigbee network
Not compatible with anti-flicker modules

Safety and installation notes

Before installation switch off the circuit breaker and verify that no voltage is present
Installation must be carried out by a qualified electrician
Do not exceed 6 A and do not connect inductive loads
Do not connect anti-flicker modules – they may damage the relay
Very low-power LED lamps (below 3 W) may flicker
Install only in dry indoor locations

Quick selection guide

No N wire

1 channel

6 A

Min. 3 W

Zigbee 3.0

EU / 86 / 120 box

Suitable when you need:

smart lighting in boxes without a neutral wire
control by switch and app together
integration into a Zigbee system or Home Assistant

Check before use:

whether you have a compatible Zigbee hub
the load power (3 W – 6 A)
that the load is not inductive
that the luminaire has no anti-flicker module

Important reminder: ZBMINI-L2 is not a protective device – it does not replace a circuit breaker or a residual current device and does not work remotely without a Zigbee hub.

FAQ

Is a neutral wire really not needed?
Yes, the relay is wired in series with the load and is powered through it.

Is a hub required?
Yes, a Zigbee hub is needed, e.g. ZBBridge, NSPanel Pro, iHost or a ZBDongle with Home Assistant.

What is the minimum load?
3 W; lower-power LED lamps may flicker.

Can a fan be controlled?
No, inductive loads are not supported.

Does two-way control work?
Yes, staircase-type control from two places is supported.

Does ZBMINI-L2 extend the Zigbee network?
No, it is an end device and does not repeat the signal.

Smart relay switch | no neutral | 1-channel | 6A | 100-240V | Zigbee 3.0 | SONOFF | ZBMINI-L2

SONOFF ZBMINI-L2 is a 6 A Zigbee 3.0 relay without a neutral wire for EU / 86 / 120 boxes: control by switch, app, voice and Home Assistant via a Zigbee hub.

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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