Description
Professional Smart Control for High-Power Electrical Circuits
Take intelligent control of your home’s most demanding electrical loads with the Sonoff Basic ZB1GSP Zigbee DIN Rail Smart Switch. Designed for installation inside standard electrical distribution boards, this professional-grade 32A Zigbee 3.0 smart relay combines powerful switching capabilities, advanced safety features, and real-time energy monitoring in a compact DIN rail module.
Whether you’re automating a geyser, monitoring an EV charger, controlling underfloor heating, or managing commercial electrical equipment, the Basic ZB1GSP delivers reliable performance, precise power insights, and seamless smart home integration.
Built for High-Power Applications
Unlike standard smart plugs or compact relays, the BASIC-ZB1GSP is engineered to control demanding electrical circuits up to 32A (100–240V AC).
Ideal for:
- EV chargers
- Electric geysers and water heaters
- Heat pumps
- Underfloor heating systems
- Pool pumps
- Air conditioning systems
- Workshop equipment
- High-power appliances
- Commercial and industrial installations
Its robust relay design makes it an excellent solution wherever reliable high-current switching is required.
Standard DIN Rail Installation
Designed for professional electrical installations, the BASIC-ZB1GSP clips directly onto a standard 35 mm DIN rail inside distribution boards.
Benefits include:
- Fast installation
- Neat, professional appearance
- No drilling or modification required
- Suitable for residential, commercial, and industrial applications
- Easy integration into existing electrical panels
Its compact footprint helps maximise available space inside crowded distribution boards.
Real-Time Energy Monitoring
Understand exactly how much electricity your equipment is using.
Monitor:
- Live power (W)
- Voltage (V)
- Current (A)
- Total energy consumption (kWh)
Access daily, monthly, and historical energy data to:
- Identify high-energy appliances
- Reduce electricity costs
- Optimise automation schedules
- Monitor long-term energy trends
- Export usage records where supported
Energy monitoring is especially valuable for large loads such as geysers, EV chargers, and heating systems.
Advanced Double-Pole Isolation
Safety is one of the standout features of the BASIC-ZB1GSP.
Unlike many smart relays that disconnect only the live conductor, this unit features double-pole switching, simultaneously isolating both Live and Neutral.
Benefits include:
- Improved electrical safety
- Complete circuit isolation
- Safer maintenance procedures
- Reduced risk of unintended energised conductors
This makes the BASIC-ZB1GSP particularly well suited to professional installations and critical electrical loads.
Intelligent Overload Protection
Protect your connected equipment with configurable protection settings.
Set custom limits for:
- Voltage
- Current
- Power
If any threshold is exceeded, the relay can automatically disconnect the load, helping to protect equipment from abnormal electrical conditions and reducing the risk of damage.
Reliable Zigbee 3.0 Connectivity
The BASIC-ZB1GSP communicates using Zigbee 3.0, providing fast, stable, low-latency local communication.
Benefits include:
- Reliable local operation
- Low wireless interference
- Fast response times
- Excellent network stability
- Low power consumption
Unlike Wi-Fi devices, Zigbee creates a self-healing mesh network that becomes stronger as additional powered devices are added.
Strengthen Your Zigbee Mesh
Because the BASIC-ZB1GSP is permanently powered, it also functions as a Zigbee router, helping extend and strengthen your Zigbee network.
This improves communication for nearby battery-powered Zigbee devices, reduces dead spots, and enhances the reliability of your entire smart home.
Powerful Smart Automation
Integrate the BASIC-ZB1GSP into your favourite Zigbee platform to create intelligent automations.
Examples include:
- Automatically heat your geyser during off-peak electricity tariffs
- Monitor EV charging energy usage
- Schedule underfloor heating
- Control pool pumps
- Protect equipment using overload automations
- Build energy-saving routines in Home Assistant
The combination of switching and power monitoring opens up powerful automation possibilities.
Broad Zigbee Compatibility
Compatible with a wide range of Zigbee ecosystems, including:
- Home Assistant (ZHA)
- Zigbee2MQTT
- SONOFF Zigbee Bridge
- SmartThings
- Tuya Zigbee Gateways
- OpenHAB
- Other Zigbee 3.0 compatible coordinators
Voice control is available through supported platforms and compatible smart assistants.
Built for Long-Term Reliability
The BASIC-ZB1GSP is engineered for dependable everyday operation.
Features include:
- UL94 V-0 flame-retardant enclosure
- High-performance UniBusbar relay
- Low heat generation
- Robust internal construction
- Long service life
- Designed for continuous installation inside distribution boards
Ideal Applications
✔ EV Chargers
✔ Electric Geysers & Water Heaters
✔ Heat Pumps
✔ Underfloor Heating
✔ Pool Pumps
✔ Air Conditioning
✔ Solar Energy Systems
✔ Commercial Equipment
✔ Home Assistant Energy Monitoring
✔ Smart Distribution Boards
Technical Highlights
| Specification | Details |
|---|---|
| Model | SONOFF BASIC-ZB1GSP |
| Wireless Protocol | Zigbee 3.0 |
| Installation | 35 mm DIN Rail |
| Rated Voltage | 100–240V AC, 50/60Hz |
| Maximum Currnet | 32A |
| Energy Monitoring | Voltage, Current, Power & Energy |
| Protection Features | Overload, Over-Voltage & Over-Power |
| Isolation | Double-Pole (Live & Neutral) |
| Zigbee Router | Yes |
| Housing | UL94 V-0 Flame-Retardant |
| Dimensions | 84 × 66.5 × 18 mm |
| Weight | Approx. 93.5 g |
Compatibility
The SONOFF BASIC-ZB1GSP requires a compatible Zigbee hub or coordinator.
Compatible with:
- Home Assistant (ZHA)
- Zigbee2MQTT
- SONOFF Zigbee Bridge
- OpenHAB
- Other Zigbee 3.0 compatible ecosystems
For energy monitoring, the device requires the neutral conductor to be connected to the output terminal as specified in the installation guide.
Installation should be carried out by a qualified electrician in accordance with local electrical regulations.
Why Choose the SONOFF BASIC-ZB1GSP?
The SONOFF BASIC-ZB1GSP Zigbee DIN Rail Smart Switch is the ideal solution for intelligent control of high-power electrical circuits. Combining 32A switching, real-time energy monitoring, double-pole isolation, configurable overload protection, and Zigbee 3.0 mesh networking, it delivers the reliability and safety expected in professional electrical installations while integrating seamlessly into modern smart homes.
Whether you’re automating a geyser, monitoring EV charging, managing heating systems, or building a fully connected electrical distribution board, the BASIC-ZB1GSP provides the performance, flexibility, and insight needed to take control of your energy usage.
