SONOFF Basic DIN Rail – Smart 32A DIN rail mount relay module with power monitoring
SONOFF Basic DIN Rail – Smart 32A DIN rail mount relay module with power monitoring
SONOFF Basic DIN Rail (BASIC-1GSP) is a high-performance smart switch with energy monitoring, designed for installation directly into your electrical distribution board. By mounting it on a standard 35 mm DIN rail right after your miniature circuit breakers (MCB), it provides professional smart control and precise energy consumption monitoring for the most power-hungry circuits in your home.
Capable of handling a massive continuous load of 32 A, it is perfectly suited for automating electric floor heating, water heaters, heat pumps, and electric vehicle charging stations. With native Matter support over Wi-Fi, it ensures seamless, 100% local integration across all major smart home platforms, without locking you into a proprietary cloud ecosystem.
Key Features
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Massive 32A / 7680W Capacity: Built for heavy loads. It can safely switch high-power resistive loads up to 32 amperes, making it an ideal solution for whole-room heating or high-load appliances that would otherwise instantly destroy a standard smart relay.
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True Matter Integration: Natively supports Matter over Wi-Fi. Using the standard Matter QR code, you can add it directly to Apple HomeKit, Google Home, Amazon Alexa, Samsung SmartThings, or Home Assistant, ensuring local execution in a fraction of a second.
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Advanced Energy Monitoring: Features professional power metering. It tracks voltage, current, and active power in real time. The companion app stores up to 180 days of historical data, allowing you to export consumption statistics and calculate operating costs based on your electricity tariffs.
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Double-Pole Safety and Overload Protection: Safety is paramount with high-load electrical equipment. It features double-pole relay switching for complete electrical isolation, along with adjustable overload protection. If current, voltage, or power thresholds are exceeded, the module automatically cuts off the power within 3 seconds to protect your equipment.
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Smart Charging Protection: Includes an intelligent auto-off function that detects when current drops below a specific threshold. This is perfect for cutting power to chargers or battery-powered devices once they are fully charged, extending battery life and saving energy.
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Local Network (LAN) Control and Bluetooth Solution: Operates entirely within your local network (LAN) without internet access. If your router stops working completely, the built-in Bluetooth LE chip enables proximity control via your smartphone.
Technical Specifications
| Feature | Specification |
| Model | BASIC-1GSP (Basic DIN Rail) |
| Microcontroller / SoC | Beken BK7238 (32-bit Cortex-M @ 160 MHz) |
| Wireless Protocols | Wi-Fi (802.11 b/g/n 2.4 GHz), Bluetooth 5.2 LE, Matter |
| Power Supply (Input) | 100–240V AC ~ 50/60Hz |
| Max Load | 32A / 7680W (at 240V AC) |
| Energy Monitoring | Real-time (power, voltage, current) + 180-day history |
| Safety Mechanisms | Double-pole isolation, overload / overvoltage / overcurrent cutoff |
| Mounting Type | Standard 35 mm DIN rail |
| Supported Wire Gauge | 4 mm² to 10 mm² (11 AWG to 6 AWG) solid or stranded copper wire |
| Platform Compatibility | eWeLink, Apple Home, Google Home, Alexa, SmartThings, Home Assistant |
| Operating Temperature | -15 °C to +50 °C |
| Housing Material | Flame-retardant polycarbonate (PC) |
| Dimensions | 84 mm × 66.5 mm × 18 mm |
| Weight | ~92 g |
Package Contents
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SONOFF Basic DIN Rail Smart Switch (BASIC-1GSP)
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Quick Start Guide (with Matter QR code)