Efficient Energy Management with Sonoff SPM-4Relay

The Smart Switch Sonoff SPM-4Relay offers unmatched flexibility and digital connectivity, allowing you to monitor and manage energy consumption effectively. Combine it with the SPM-Main module (sold separately) for a comprehensive energy monitoring solution. Featuring four independent channels, it integrates overload protection to safeguard devices from potential damage. Easy to install, it mounts seamlessly on a guide rail.

• Versatile Applications: Monitor energy use for tenants, commercial centers, or office spaces. Ideal for cryptocurrency mining or server rooms, minimizing risk with overload protection.
• Reliable Connection: Connect seamlessly to your devices with Ethernet or Wi-Fi, ensuring stable long-distance data transmission via RS-485 interface.
• Energy Consumption Monitoring: Track energy usage from your mobile device using the eWeLink app, without leaving your home.
• Overload Protection: Increase safety with built-in overload protection that switches off devices automatically when set parameters are reached.
• 4 Channels per Switch: Each switch offers four 20A load channels, with a single main module controlling up to 128 channels, perfect for managing a residential building's tenant energy use.

Technical Parameters:

• Input Current: 100-240V ~50/60Hz 20A per channel, 80A max.
• Output Current: 100-240V ~50/60Hz 20A per channel, 80A max.
• Material: PC V0
• Dimensions: 250x90x66.5mm