Sonoff Basic DIN Rail Zigbee (BASIC-ZB1GSP) smart DIN rail relay, 32A, energy monitoring
Description
Sonoff Basic DIN Rail Zigbee (BASIC-ZB1GSP) – smart DIN rail relay, 32A, with energy monitoring
The Sonoff Basic DIN Rail in its Zigbee version is a Zigbee 3.0 smart relay that mounts on the standard DIN rail in the distribution board, with no drilling, and controls loads of up to 32A / 7680W, such as EV chargers, water heaters, underfloor heating or heat pumps. It monitors energy in real time, with data storage and export; data is kept locally while the device is offline but powered. Double-pole switching cuts both live and neutral, and the relay also acts as a Zigbee router, extending the network.
Note: the relay requires a compatible SONOFF Zigbee hub, for example SONOFF ZBBridge-U or eWeLink CUBE. Energy monitoring works only if the load neutral is connected to the device's output neutral terminal. The relay is installed after the circuit breaker, not directly on the mains. Installation must be carried out only by a qualified electrician. Indoor use only.
Features:
- 32A maximum current, 7680W maximum load, for EV chargers, water heaters, underfloor heating and heat pumps
- Real-time energy monitoring with data storage and export; data is kept locally while the device is offline but powered
- Overload protection with configurable voltage, current and power thresholds
- Double-pole switching: cuts live and neutral
- UL94 V-0 housing and SONOFF UniBusbar relay
- Zigbee router that extends the Zigbee network
- Timer, inching mode and voice control
- Works with eWeLink, Apple Home (via Matter Bridge) and open-source platforms via Zigbee 3.0 (Home Assistant / Zigbee2MQTT)
Practical use cases:
- Heat pump: follow consumption in real time and export the data to compare months.
- EV charger: charging is scheduled with the timer, and the protection thresholds switch off the circuit when the set values are exceeded.
- Electric water heater: controlled from the distribution board, from the app or by voice, without touching the wiring.
- Extended Zigbee network: the relay in the distribution board acts as a router for nearby Zigbee sensors.
Technical specifications:
| Model | BASIC-ZB1GSP |
| Wireless protocol | Zigbee 3.0 |
| Power supply | 100-240V~ 50/60Hz |
| Maximum current | 32A |
| Maximum load | 7680W |
| Switching | double-pole (live and neutral) |
| Energy monitoring | real time, with data storage and export (with the load neutral connected to the output neutral terminal) |
| Wire size | 4–10 mm² (11–6 AWG), SOL/STR copper |
| Mounting | standard DIN rail, after the circuit breaker; indoor only |
| Dimensions | 84 × 66.5 × 18 mm |
| Weight | 93.5 g |
| Operating temperature | -15 °C ~ 50 °C |
| Operating humidity | 10–90% RH, non-condensing |
| Housing | PC, white, UL94 V-0 |
| Certifications | CE, RoHS, FCC, CP65, Zigbee 3.0, WWA |
It is the right choice for anyone who already has a Zigbee network and wants to control and measure loads of up to 32A from the distribution board.