SPECIFICATIONS
Color	White
Power	AC
Protocol	LAN, WiFi

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Shelly

Shelly PRO 3EM 120A

Name: Shelly PRO 3EM 120A - Untamed Tech
SKU: SHELLYPRO3EM_120
Price: 3299.00 ZAR
Availability: InStock

Rated 0 out of 5

R3299,00

Prices include VAT. Delivery shown at checkout.

Shelly PRO 3EM 120A – 3-Phase Wi-Fi Energy Meter (DIN Rail)

Monitor your entire home, solar PV system, or business energy usage with precision. The Shelly PRO 3EM 120A is a professional 3-phase DIN-rail energy meter with 1% accuracy, perfect for South African installations and Home Assistant integration.

120A per phase + neutral monitoring with included CT clamps
Real-time & historical data — 60 days onboard storage at 1-min resolution
Wi-Fi, Bluetooth & LAN connectivity + MODBUS support
4-quadrant measurement for consumption, solar generation & export
Native Home Assistant integration + scripting & MQTT
Easy DIN rail install — compact, reliable & PV/EV charger ready

Accurate. Reliable. Future-proof energy monitoring. Add to cart now!

Category:

Energy

Power Monitoring

Stock:

2 in stock

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      EXCELLENT  
   Based on 702 reviews 
    
 
 
 
   
 
 
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   Johan Grobbelaar 
 
 
 
 Trustindex verifies that the original source of the review is Google. What a nice and efficient company to deal with !

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 Trustindex verifies that the original source of the review is Google. Excellent service as always
  
 
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 Trustindex verifies that the original source of the review is Google. great service.
  
 
      Posted on Google  
   
   Clifford Hankey 
 
 
 
 Trustindex verifies that the original source of the review is Google. I think their prices are well below their competitors and delivery was exceptional. The setup was easy if you follow the instructions!  Can definitely recommend them.
  
 
      Posted on Google  
   
   Ryan Harris 
 
 
 
 Trustindex verifies that the original source of the review is Google. Prompt delivery, great technical support. The WiFi switch and contact works very well on my garage door.
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Overview

Shelly PRO 3EM 120A – Professional 3-Phase Wi-Fi Energy Meter & Monitor (DIN Rail)

Unlock precise, real-time energy monitoring for your home, business, solar PV system, or EV charger with the powerful Shelly PRO 3EM 120A.

This advanced DIN-rail mountable 3-phase energy meter delivers Class B accuracy (1% active energy) and supports monitoring up to 120A per phase + neutral using the included 120A current transformers (CT clamps). Perfect for South African installations, load-shedding analysis, solar generation tracking, and complete home or commercial power management.

Key Features & Benefits:

High-Precision 4-Quadrant Measurement — Monitor active/apparent power, energy, power factor, voltage, and current per phase in real-time. Ideal for consumption, generation, and bidirectional energy flow (perfect for Deye, FoxESS, Solis, or other inverters).
Multiple Connectivity Options — Built-in Wi-Fi, Bluetooth, and LAN (Ethernet) for rock-solid reliability. Full MODBUS support and scripting for advanced automations.
Local Data Storage — Up to 60 days of 1-minute resolution historical data stored directly on the device. Export as CSV or JSON — no cloud dependency required.
Home Assistant & Smart Home Ready — Seamless native integration with Home Assistant, plus MQTT, Shelly Cloud, and open REST API. Create powerful automations, dashboards, and energy reports.
Professional DIN Rail Design — Compact (94x19x69 mm), easy to install in any distribution board. Supports multiple connection types and works in temperatures from -20°C to +40°C.
Photovoltaic & EV Ready — Track solar production vs consumption, optimize self-consumption, and monitor EV charger usage with complete visibility.

Whether you’re a homeowner wanting to slash electricity costs, a business optimizing energy use, or a smart home installer (like our Untamed Technologies team), the Shelly PRO 3EM 120A gives you professional-grade insights without monthly fees.

Technical Highlights:

Voltage: 110-240V AC, 50/60Hz
Current: 0-120A per phase/neutral (included 120A CTs)
Accuracy: ±1% (2-120A), Power consumption < 3W
Add-on support for expanded functionality
Over-the-air firmware updates with Gen2 flexibility

Why choose Untamed Technologies? We specialize in Shelly and Home Assistant installations across Johannesburg and South Africa. Buy with confidence — we offer expert local support, integration guidance, and real-world testing in our showroom.

Upgrade your energy intelligence today. Add the Shelly PRO 3EM 120A to your cart and start monitoring smarter! Questions? Contact our team for installation advice or custom HA dashboard setups.