Sonoff Basic DIN Rail (BASIC-1GSP) smart DIN rail relay, 32A, Matter over Wi-Fi, energy monitoring
Description
Sonoff Basic DIN Rail (BASIC-1GSP) – smart DIN rail relay, 32A, Matter over Wi-Fi, with energy monitoring
The Sonoff Basic DIN Rail in its Matter over Wi-Fi version is a 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 or underfloor heating. It measures voltage, current, power and consumption in real time, with daily, monthly and half-yearly history and cost calculation. Double-pole switching cuts both live and neutral, and local control also works without internet.
Note: 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. The relay does not need a Zigbee hub, but integration with the Matter ecosystem requires a Matter hub. Indoor use only.
Features:
- 32A maximum current, 7680W maximum load, for EV chargers, water heaters and underfloor heating
- Real-time energy monitoring (voltage, current, power, consumption), with daily, monthly and half-yearly history and cost
- Overload protection with configurable current (up to 32A), voltage and power thresholds
- Double-pole switching: cuts live and neutral for complete physical isolation
- UL94 V-0 flame-retardant housing and SONOFF UniBusbar relay
- Serverless local control, timer, inching mode and remote control
- Matter over Wi-Fi: Apple Home (Siri, iPhone, iPad, Apple Watch), Google Home, Amazon Alexa, Home Assistant and Samsung SmartThings
- eWeLink app, with cloud-to-cloud sync to third-party platforms
Practical use cases:
- EV charger: see the consumption and cost of charging in the app and schedule charging with the timer.
- Electric water heater: it runs only in the set time slots, and the monthly history shows how much it really uses.
- Underfloor heating: the overload protection thresholds switch off the circuit if the set values are exceeded.
- Apple Home or Google Home household: the circuit in the distribution board appears directly in the ecosystem app via Matter.
Technical specifications:
| Model | BASIC-1GSP |
| Wireless protocol | Matter over Wi-Fi |
| Power supply | 100-240V~ 50/60Hz |
| Maximum current | 32A |
| Maximum load | 7680W |
| Switching | double-pole (live and neutral) |
| Energy monitoring | voltage, current, power, consumption (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 | 92.1 g |
| Operating temperature | -15 °C ~ 50 °C |
| Operating humidity | 10–90% RH, non-condensing |
| Housing | PC, white, UL94 V-0 flame-retardant |
| Certifications | CE, RoHS, FCC, CP65 |
It is the right choice for anyone who wants to control and measure large loads of up to 32A from the distribution board, directly in Apple Home, Google Home, Alexa or Home Assistant via Matter.