Product detailed description

Shelly 2L Gen3 – Dual Relay Without Neutral

Renovating an older home where the wall switch boxes lack a neutral wire? The Shelly 2L Gen3 solves this notorious wiring issue with absolute ease. This advanced dual-channel smart module draws its power purely from the live phase wire (L). You can tuck it cleanly behind a standard double light switch, granting you independent remote control over two different lighting circuits.

Retrofitting Made Easy

The module features robust Wi-Fi and Bluetooth connectivity, requiring no expensive central hub. When wiring very low power consumption lights (like modern LED bulbs) in a no-neutral setup, a Shelly Bypass for 1L/2L must be wired in parallel with the light fitting on the first output circuit. This ensures the module receives the minimal trickling voltage needed to remain online.

Technical Specifications:

• Installation: No neutral wire needed (powered solely by the Live wire).
• Load Capacity: 2 independent outputs (Output O1 supports up to 1.2A; Output O2 supports up to 3A).
• Connectivity: 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 4.2.
• Bypass Requirement: In a no-neutral setup, a Bypass is mandatory on the O1 circuit for most loads (except high-draw incandescent/halogen bulbs).
• Safety: Features an internal temperature sensor to actively prevent overheating.
• Dimensions: Space-saving 37 × 42 × 16 mm housing.
• Features: Custom timers, sunrise/sunset scheduling, and advanced scripting.