Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android App | No Hub Required | Solar Panels | Wind Turbines

Shelly Pro 3EM Switch Add-On | Add-On Pro 3EM Dry Contacts DIN Rail Mounting | Home Automation | iOS Android App | No Hub Required | Solar Panels | Wind Turbines

Product ID: 740311130

Details

Brand
Shelly
Connector Type
Screws
Contact Material
Steel
Contact Type
Work Contact
International Protection Rating
IP00
Item dimensions L x W x H
9.4 x 1.9 x cm

⚡240V AC / 30V DC load control

📱App & voice assistant control

⏱️Customizable timers & schedules

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

HK$436

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Description

⚡ Upgrade your energy game — smarter, faster, and effortlessly connected!

SEAMLESS POWER CONTROL - Automate load and device shutdown with precision switching for smarter energy management.
VOICE APP INTEGRATION - Control your energy setup remotely via Shelly Smart Control app or popular voice assistants like Alexa and Google Home.
SMART SCHEDULING ZONES - Create personalized timers and zones to optimize your home automation workflow.
PLUG PLAY DIN RAIL MOUNT - Effortless installation right next to your Shelly Pro 3EM for expanded functionality.
UNIVERSAL VOLTAGE COMPATIBILITY - Supports 3.3V or 12V power supply directly from your device—no extra adapters needed.

The Shelly Pro 3EM Switch Add-On is a DIN rail-mounted electrical insulation switch designed exclusively for the Shelly Pro 3EM. It enables precise load and device control with dry contacts rated up to 240V AC/30V DC and 2A max current. Powered directly from the Pro 3EM (3.3V or 12V), it supports smart scheduling, zone control, and seamless integration with the Shelly app and major voice assistants—empowering professional-grade home automation without the need for a hub.

Specifications

ASIN	B0C718B37C
Amazon Bestseller	#66,237 in Computers ( See Top 100 in Computers ) #382 in Computer Networking Switches
Brand	Shelly
Brand Name	Shelly
Color	white
Connector Type	Screws
Contact Material	Steel
Contact Type	Work Contact
Control Method	App
Customer Reviews	4.6 out of 5 stars 66 Your Review
EU Spare Part Availability Duration	5 Years
Global Trade Identification Number	03800235268131
International Protection Rating	IP00
Item Dimensions	9.4 x 1.9 x 6.9 cm
Item Weight	20 Grams
Item dimensions L x W x H	9.4 x 1.9 x 6.9 cm
Manufacturer	Shelly
Material	Stainless Steel
Material Type	Stainless Steel
Model	3800235268131
Mounting Type	DIN Rail Mount
Number of Items	1
Part Number	Shelly_Pro_Add
Specification Met	RoHS
Unit Count	1 Count
Upper Temperature Rating	40 Degrees Celsius
Wattage	1

Reviews

F**R

Toll

Tut was es soll, misst meine Leistung, rechnet sogar Blind und Scheinleistung aus automatisch. Sehr nice 👍

23.05.2026

R**N

Produit conforme

25.04.2025

C**R

Non c'è di meglio

Eccezionale come tutti i prodotti shelly

11.05.2025

A**R

Perfect for my application

Snaps on, super clean. I used it to control the coil of a larger contactor.

1.05.2026

G**I

Buono

Ottimo da migliore sulle letture

24.05.2026

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.