SONOFF SPM-4RELAY Smart Power Monitoring Switch 4-Channel Relay Module DIN Rail Mounted
Out Of Stock
The SONOFF SPM-4RELAY is a professional 4-channel smart relay module for DIN rail installation, offering precise control and energy monitoring for high-power circuits. Compatible with the SPM-Main unit, it allows remote control, real-time power tracking, automated schedules, and scene integration via the eWeLink app. With overload protection, compact DIN-rail design, and industrial-grade reliability, the SPM-4RELAY is ideal for smart homes, offices, server rooms, vending machines, and energy management projects.
وحدة SONOFF SPM-4RELAY الذكية بأربع قنوات هي وحدة مرحلات احترافية لتركيب على سكة DIN توفر التحكم الدقيق ومراقبة استهلاك الطاقة للدوائر عالية الحمل. عند توصيلها بوحدة SPM-Main، تدعم التحكم عن بُعد، تتبع استهلاك الطاقة في الوقت الفعلي، الجداول الزمنية، وأتمتة المشاهد عبر تطبيق eWeLink. تتميز بالحماية من التحميل الزائد، تصميم مضغوط وسعة تحمل صناعية، وهي مثالية للمنازل الذكية والمكاتب وغرف الخوادم وآلات البيع وإدارة الطاقة.
The SONOFF SPM-4RELAY 4-Channel Smart Power Monitoring Switch is a professional-grade relay module designed for precise high-power control and energy management. Installed on a DIN rail, it allows independent control of up to four electrical circuits and integrates seamlessly with the SPM-Main unit to enable remote access and intelligent automation.
When paired with SPM-Main, the SPM-4RELAY provides real-time energy monitoring including voltage, current, and power consumption. Historical energy data can be securely stored on the cloud or locally via a microSD card (up to 256GB). The module supports overload and short-circuit protection, ensuring safe and reliable operation even in demanding environments.
Users can manage devices remotely via the eWeLink app, set automated schedules, and integrate multiple relay channels into custom smart scenes. Its compact DIN-rail design allows installation in distribution boxes, control panels, server rooms, workshops, or commercial and residential setups. With industrial-grade materials and performance, the SPM-4RELAY is ideal for energy management, office automation, vending machines, apartment complexes, and high-power smart home systems.
Technical Specifications
| Specification | Details |
|---|---|
| Model | SONOFF SPM-4RELAY |
| Channels | 4 × Independent Relays |
| Input / Output Voltage | 100–240V AC |
| Max Load per Channel | 20A |
| Total Max Load | 40A |
| Wireless Communication | RS-485 (Connects to SPM-Main) |
| Energy Monitoring | Yes (Requires SPM-Main Module) |
| Data Storage | Cloud or microSD up to 256GB (via SPM-Main) |
| Installation Type | DIN Rail Mount |
| Working Temperature | -10°C to +40°C |
| Material | Flame-Retardant PC V0 |
| Dimensions | 143 × 90 × 66 mm |
| App Support | eWeLink (iOS & Android) |
| Certifications | CE / FCC / RoHS |
Applications
Energy monitoring and management in smart homes
Office and commercial building automation
Server room power control and monitoring
Automation for vending machines and industrial equipment
Multi-circuit management in apartment complexes or rental properties
Smart scheduling and scene automation for high-power loads
Centralized remote control via eWeLink
Why Choose SONOFF SPM-4RELAY?
Smart 4-channel control for homes and commercial environments
Real-time energy monitoring and advanced protection
Works with timers, automation scenes, and cloud storage
Ideal for offices, smart buildings, vending machines, server rooms & factories
Modular and scalable – can connect multiple relay modules using SPM-Main