SONOFF Orb-ZBW2 2-Gang Zigbee Smart Switch – 2-gang, phase+neutral switch, Zigbee, white (MINI-ZB2GS-E)

The SONOFF Orb-ZBW2 (MINI-ZB2GS-E) is an ultra-compact dual-channel Zigbee 3.0 smart switch module that lets you replace your existing wall switch and upgrade it with smart features. The module fits into a standard electrical wall box and can control two independent lighting circuits. It supports a total load of up to 16 A (maximum 10 A per channel for resistive loads) and offers scheduling, scene creation, and group control.

The built-in Zigbee signal repeater improves network stability, while the external wall switch inputs allow you to retain traditional manual control. Compatible with popular platforms such as Home Assistant (ZHA / Zigbee2MQTT), Alexa, Google Home, and SmartThings, it easily integrates into your existing smart home system.

It’s an ideal solution for renovations or retrofitting smart control, when you want to manage two separate circuits discreetly from a wall-mounted module — offering quick installation and a reliable Zigbee connection.

About the SONOFF Brand

SONOFF (ITEAD) is one of the most well-known manufacturers in the DIY smart home community. Their affordable yet versatile Wi-Fi and Zigbee devices offer easy installation, stable operation, and broad compatibility with platforms such as eWeLink, Home Assistant, Google Home, and Amazon Alexa.

Key Product Features

• Dual-channel, compact design: control two independent circuits from a single in-wall module.
• Reliable Zigbee 3.0: fast pairing and stable network performance, with a built-in Zigbee signal repeater to enhance connectivity.
• External switch support: works with both rocker and push-button wall switches; switch type can be toggled via the module’s button.
• Timers and scenes: create schedules, group controls, and smart scenes for convenient automation.
• Power-On State: configure the device behavior after a power outage (ON / OFF / Last State).

Smart Home Protocols and Platform Compatibility

• Protocol: Zigbee 3.0 (IEEE 802.15.4)
• Compatible gateways/platforms: SONOFF ZBBridge-P / -U, NSPanel Pro, iHost, ZBDongle-P / -E; also works with Home Assistant (ZHA, Zigbee2MQTT)
• Voice assistants and ecosystems: Amazon Alexa, Google Home, Samsung SmartThings (depending on hub support)
• Local automation: scenes and rules configured on the Zigbee hub; module LED and button support pairing and status indication

Smart Features

• Remote ON/OFF and status feedback: control and monitor device state via app or hub
• Schedules and timers: time-based switching aligned with daily routines
• Scenes and groups: coordinate control of multiple devices (e.g. room-level switching)
• External switch modes: choose between momentary and toggle switches; switch mode toggled by pressing the button 3 times quickly
• Advanced Zigbee2MQTT features: including detach relay mode, external trigger mode, and pulse switching (availability depends on firmware/hub)

Technical Specifications

• Product/Series: MINI DUO / MINI Extreme series
• Type: 2-gang Zigbee smart switch (neutral wire required)
• Model: MINI-ZB2GS-E
• MCU/Radio: Silicon Labs EFR32MG21 (Zigbee 3.0)
• Input voltage: 110–240 V~ 50/60 Hz (single-phase)
• Rated load: 10 A per channel; max. 16 A total (resistive load)
• External switch inputs: S1 (channel 1), S2 (channel 2); do not connect to neutral or ground
• Recommended wire type: 16–14 AWG solid/stranded copper
• Dimensions / weight: 45 × 39.4 × 16.8 mm; approx. 36.2 g
• Housing / color: PC plastic, white
• Operating environment: indoor use; −10 to +40 °C; 5–95% RH (non-condensing)
• Certifications: CE / FCC / RoHS
• Button functions: press for 5s – pairing mode; press 3× quickly – toggle external switch mode; press for 10s – factory reset

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Available documents are organized by manufacturer in folders on Google Drive.

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