£0.00
NetXL Logo
Hello! Log InYourAccount
  • Networking
  • Antennas
  • CCTV
  • Smart Home & Security
  • Speakers
  • VoIP
  • Accessories
  • Brands
  • Bundles
  • Reduced
Help & SupportExpress ShippingTrade Account
Explore
  • Brands A-Z
  • Categories
  • Reduced & Clearance
  • Bundles
Trade
  • Apply for Trade Account
  • Trade Account Benefits
  • API
More from NetXL
  • About Us
  • Blog
  • News
Terms
  • Terms & Conditions
  • Privacy Policy
Help & Support
  • Contact Us
  • FAQs
  • Delivery Policy
  • Returns
Apple Pay acceptedGoogle Pay accepted

Unit 4, Riverside Business Park, Walnut Tree Close, Guildford, Surrey, GU1 4UG

Registered in England & Wales. Company No: 13500507 VAT No: GB 386 0823 76

Copyright © 2025 NetXL Distribution Ltd, All rights reserved.

Want it by tomorrow? Order within 5 hours 2 minutes for next business day delivery.

Home
Shelly
Shelly Pro EM-50 Energy Meter with Contactor Control
shelly/shelly-pro-em-50-30

Click to zoom

shelly/shelly-pro-em-50-30
shelly/pro-em-50-13
shelly/shelly-shelly-pro-em-50-40
shelly/shelly-shelly-pro-em-50-41

Shelly Pro EM-50 Energy Meter with Contactor Control

Part Number: SHELLY-PRO-EM-50

£77.49inc VAT
£64.58ex VAT

75 In Stock

Want it by tomorrow? Order within 5 hours 2 minutes for next business day delivery.

Easy Returns

Bulk Pricing

  • 1+

    £77.49

  • 5+

    £74.67

  • 10+

    £71.85

The Shelly Pro EM-50 is a DIN rail mountable two-channel energy meter, able to report accumulated energy, voltage, current and active power in real time. With the ability to measure energy consumption with accuracy of 1% margin of error, the EM-50 can monitor the energy consumption of any home appliance, electric circuit or office equipment, as well as support for custom scripting for complex scenes and sophisticated reporting.

Description

The Shelly Pro EM-50 is capable of monitoring up to 50 amps of electrical current, making it suitable for smaller circuits or systems, as well as featuring two independent measurement channels on the same phase for independent power monitoring of multiple devices. The device itself also includes 2 x 50A clamps, offering safe and accurate energy consumption monitoring over both channels.

The Shelly Pro EM can also be used with contactors for larger loads, and can store data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals.

Like the rest of Shelly's portfolio, the Pro EM is compatible with a wide range of Smart Home and Voice controlled assistants like Amazon Alexa or Google Home.

Key Highlights

  • Built-in WiFi - no hub required
  • LAN connectivity
  • Bluetooth connectivity
  • Embedded web server for local management
  • Power metering
  • Enhanced security (MQTT, WSS and TLS certificate support)
  • DIN rail mountable

What’s in the box?

  • 1 x SHELLY-PRO-EM-50
  • 2 x 50A Clamp
  • 1 x Installation Guide

Documents

  • User Manual:Shelly Pro EM-50 User Manual

You might also like

shelly/shelly-shelly-shelly-shelly-pro-3em-40

Shelly Pro 3EM-120A 3-Phase Energy Meter

£124.49inc VAT
Best Seller
shelly/shelly-pro-3em-400a-20

Shelly Pro 3EM-400A Energy Meter

£236.99inc VAT
Exclusive
shelly/shelly-shelly-pro-1pm-30

Shelly Pro 1PM Switch with Power Meter

£62.99inc VAT
New
shelly/shelly-h-t-ivory-20

Shelly H&T Heat/Humidity Sensor Ivory

£33.49inc VAT
New
shelly/shelly-mini-1pm-10

Shelly 1PM Mini Gen3 WiFi Smart Switch

£15.49inc VAT

More by Shelly

shelly/shelly-shelly-shelly-shelly-pro-3em-40

Shelly Pro 3EM-120A 3-Phase Energy Meter

£124.49inc VAT
New
SHELLY-WALL-DISPLAY-WHITE-1

Shelly Wall Display & H&T (White)

£129.49inc VAT
New
shelly/shelly-shelly-mini-pm-gen3-11

Shelly PM Mini Gen3 Smart Power Meter

£14.50inc VAT
New
SHELLY-WALL-DISPLAY-BLACK-1

Shelly Wall Display & H&T (Black)

£129.49inc VAT
New
SHELLY-EM-GEN3-1

Shelly EM Gen3 & 50A Clamp

£64.49inc VAT
shelly/shelly-pro-3em-addon-30

Shelly Pro 3EM Smart Switch Add-On

£20.99inc VAT
Best Seller
shelly/shelly-pro-3em-400a-20

Shelly Pro 3EM-400A Energy Meter

£236.99inc VAT
New
SHELLY-120A-CLAMP-1

Shelly Split-Core Clamp (120A)

£15.49inc VAT

Latest Tech News

Read Blog
How can Shelly devices be used to provide automated convenience to your customers?
NetXL 10 Nov 2025 | 5 min readHow can Shelly devices be used to provide automated convenience to your customers?

Ben Pratt, the founder of B Electrical, gives some examples of the ways in which Shelly devices can be used to provide automated convenience to your customers

Simplify Your Office Network with HPE
NetXL 31 Oct 2025 | 5 min readSimplify Your Office Network with HPE

HPE is making network upgrades for SMBs easier than ever - here's how!

A spotlight on Grandstream’s WiFi 7 Product Range
NetXL 27 Oct 2025 | 5 min readA spotlight on Grandstream’s WiFi 7 Product Range

Exploring the Next Generation of Connectivity with Grandstream’s WiFi 7 Lineup.

Next-Level Performance for the Modern Workplace with TP-Link's EAP723
NetXL 21 Oct 2025 | 5 min readNext-Level Performance for the Modern Workplace with TP-Link's EAP723

The TP-Link EAP723 sets a new benchmark for WiFi 7 access points, delivering blazing-fast performance, enterprise-grade reliability, and effortless deployment flexibility.

Shelly's New Product Line-Up: Everything You Need to Know
NetXL 6 Oct 2025 | 5 min readShelly's New Product Line-Up: Everything You Need to Know

BIG NEWS for smart home fans...

Introducing The VigorAP 905
NetXL 5 Sep 2025 | 5 min readIntroducing The VigorAP 905

Meet the VigorAP 905, your high-performance solution for reliable, lightning-fast WiFi

Understanding TP-Link's WiFi 7 Devices
NetXL 29 Aug 2025 | 5 min readUnderstanding TP-Link's WiFi 7 Devices

A detailed guide to TP-Link’s WiFi 7 range for every home, office, or lifestyle.

DrayTek Switching: A Complete Guide
NetXL 28 Aug 2025 | 5 min readDrayTek Switching: A Complete Guide

An in-depth spotlight at DrayTek's diverse portfolio of switches, from compact units to multi-gig powerhouses.