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Shelly Pro 3EM 120A

Original price was: $249.99.Current price is: $229.95.

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The Shelly Pro 3EM is a professional-grade energy meter for
single-phase, split-phase, or three-phase systems. Monitor your electricity in real time,
optimise load usage during solar hours, and prepare your home or business with accurate data before investing in solar and battery storage.

In stock

Flexible Monitoring for Every Property

The Shelly Pro 3EM isn’t just for large three-phase installs.
It can also be configured for individual phases or split-phase systems,
making it ideal for both homes and businesses.

  • Single-Phase Homes → monitor your entire property or just a specific circuit.
  • Two-Phase Systems → track both legs with precision.
  • Three-Phase Properties → get full per-phase visibility for advanced load balancing.

Key Benefits

  • Accurate monitoring of consumption and returned (solar/exported) energy.
  • Works across 1, 2, or 3 phases with external CT clamps.
  • Helps you size solar and battery systems correctly before you buy.
  • Professional DIN-rail mounting for neat switchboard integration.
  • LAN, Wi-Fi, and Bluetooth connectivity.
  • Compatible with Home Assistant, MQTT, and major automation platforms.

Technical Specifications

Supported SystemsSingle-phase, split-phase, or three-phase
Power Supply110–240V AC ±10%, 50/60Hz
Max Current per Channel120A (with external CT clamp)
ConnectivityLAN, Wi-Fi, Bluetooth
MeasurementsActive power, reactive power, voltage, current, energy (import/export)
MountingDIN rail (4 modules)
Operating Temperature-20 °C to +40 °C
Dimensions72 × 90 × 69 ± 0.5 mm

Weight0.3850 kg
Dimensions0.1460 × 0.1050 × 0.0850 cm