Shelly EM Gen3 + 50A Clamp — Wi‑Fi Smart Energy Meter & Contactor Control

Meet Shelly EM Gen3 + 50A Clamp

Discover a compact, Wi‑Fi smart energy meter that blends precise monitoring with hands‑on control. Shelly EM Gen3 includes a 50A clamp and a two‑channel design, delivering real‑time power data and automated switching options in a single, unobtrusive package. The device uses an 8MB Shelly chip and offers 10 days of local data logging at 1‑minute intervals, so you can review trends without relying on cloud access.

The form factor is designed to disappear behind a socket, a wall switch, or inside a small enclosure. Its single‑phase monitoring tracks total power at the breaker box, giving you clear visibility into how energy flows through your home. Pair it with a contactor to automatically cut off non‑essential appliances when thresholds are reached, helping you manage peak usage during busy periods.

Beyond overall consumption, Shelly EM Gen3 keeps an eye on individual appliances. By watching moment‑to‑moment energy draw, you can spot unusual power patterns that may indicate wear or inefficiency before they become costly problems. This proactive energy monitoring is about understanding how different devices behave, not about promising results.

Smart control, real‑world convenience

The Shelly Smart Control App puts energy data and device controls at your fingertips. Remotely check current usage, receive notifications for automated events, and build personalized scenes that link Shelly devices to trigger actions—such as dimming lights or turning off a heater when you leave home. This ecosystem is designed to feel natural, not intrusive.

Compatibility with Alexa, Google Home, and Home Assistant means you can weave Shelly EM Gen3 into your existing smart‑home routines. You can also rely on professional Shelly support and a solid warranty as you explore automation in daily life.

What you get

• 8MB Shelly chip with 1‑minute data logging for up to 10 days
• Includes a 50A current clamp for immediate, accurate measurement
• Two channels: energy monitoring and contactor control output
• Compact form factor that hides behind sockets or in tight spaces
• Shelly Smart Control App for remote access, alerts, and scenes
• 3‑year device warranty and professional support

Practical uses

• Track total home energy use at the breaker box to spot high‑consumption patterns
• Automatically switch off non‑essential devices via a connected contactor when needed
• Monitor individual appliances for unusual power patterns and potential issues
• Set up notifications and scenes to automate routines without constant monitoring

Compatibility, privacy, and reliability notes: Shelly EM Gen3 is designed for single‑phase systems, supports local data logging, and works with major smart‑home platforms and the Shelly app. The combination of the clamp, two channels, and remote control provides a flexible option for responsible energy management at home or in small business settings.