SONOFF Zigbee DIN rail relay 3.0 32A with energy monitoring
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SONOFF BASIC-ZB1GSP DIN rail relay (Zigbee 3.0)
SONOFF Basic DIN Rail (Zigbee 3.0 version) is a smart relay mounted on a DIN rail, designed for advanced energy management in residential and industrial applications. It supports loads up to 32A, offering real-time monitoring of network parameters and Zigbee 3.0 connectivity. The device allows for seamless integration with Smart Home systems without the need for complex modifications to the electrical distribution board.
Key features:
- Standard DIN rail mounting: instant installation in residential and industrial distribution boards.
- Real-time energy monitoring: tracking voltage, current, and power with the ability to save and export data.
- Support for loads up to 32A: adapted for operation with high-power devices such as EV chargers or heat pumps.
- Overload protection: automatic power disconnection after exceeding defined safety limits.
- Double-pole switch: physical disconnection of both the phase and neutral wire for complete electrical isolation.
- Zigbee 3.0 connectivity: stable operation, wide ecosystem compatibility, and a built-in router function to extend network range.
Full electrical isolation for maximum safety
The device uses a double-pole power disconnection mechanism. This means that upon activation, both the phase (L) and neutral (N) lines are disconnected simultaneously, which guarantees one hundred percent physical isolation of the electrical installation. This significantly increases the level of safety during daily operation and maintenance work. Furthermore, the housing is made of plastic with the highest V-0 fire resistance class according to the strict UL94 standard (flame suppression in less than 10 seconds).


Electricity consumption monitoring
The relay allows for tracking daily, monthly, and semi-annual power consumption. Intuitive charts available in the system help optimize electricity bill expenses. Built-in protective functions also allow for defining strict current, voltage, and power limits, protecting the entire installation from overload.

Integration with external Smart Home platforms
The device is based on the stable and reliable Zigbee 3.0 wireless communication protocol. This ensures seamless integration with third-party Zigbee Hubs and support for open-source platforms, enabling the creation of advanced home automation.

Technical specification
- Manufacturer: SONOFF
- Model: BASIC-ZB1GSP
- Device type: Smart Zigbee relay
- Power supply (Rating): 100-240V~ 50/60Hz, max. 32A
- Maximum load: 7680 W
- Maximum current: 32 A
- Wireless connectivity: Zigbee 3.0
- Recommended wires: 4 mm² - 10 mm² (11 - 6 AWG) - solid/stranded, copper cables
- Dimensions: 84 x 66,5 x 18 mm
- Net weight: 93,5 g
- Housing material: Polycarbonate (PC, fire-resistant)
- Color: White
- Operating environment: Indoors
- Operating temperature: from -15°C to 50°C
- Operating humidity: 10% - 90% RH (non-condensing)
- Certificates: CE, RoHS, FCC, CP65, Zigbee 3.0, WWA

Package contents
- SONOFF BASIC-ZB1GSP DIN rail relay
- User manual
System requirements: Please note that for communication with the relay a compatible Zigbee 3.0 gateway (hub) is required, which is sold separately.
Frequently Asked Questions (FAQ)
- Is energy consumption data saved when the device loses connection to the Zigbee network?
When the device goes offline, measurement data will still be saved in its local memory. After reconnecting to the network, it will be synchronized with the cloud and displayed correctly. However, please note that cutting off the power to the relay itself interrupts the collection of statistics. - Where can I install this relay?
The relay is mounted on a DIN rail inside standard electrical distribution boards, which are commonly used in both homes and commercial buildings. - What devices and loads can it handle?
This equipment is adapted to work with high-current loads (up to 32A). Thanks to this, it easily manages circuits powering underfloor heating, heat pumps, high-power household appliances, and electric vehicle (EV) charging stations.



