Shelly 1 Gen4 Dry Contact Smart Relay

Shelly 1 Gen4 is a single-channel smart relay with a potential-free dry contact, so the switched circuit is isolated from the module’s own supply. That makes it suitable for lights, appliances, contactors and compatible low-voltage control circuits. The relay can switch up to 16 A at 240 V AC or 10 A at 30 V DC, and the device itself accepts 110–240 V AC, 24–48 V DC or 12 V DC supply. Wi-Fi, Bluetooth 5.0 and Zigbee 3.0 are available; Matter is the default profile and Zigbee can be selected during setup. Bluetooth supports inclusion and gateway functions rather than direct load control. Use schedules, scenes, scripts, MQTT and webhooks for local automation. The compact module fits suitable wall boxes and enclosures. Verify the contact rating and circuit voltage before installation. Have a qualified electrician install mains-connected equipment.