Out of stock
Smart Relays 
Shelly Pro 3
Product code 2155
Sh 500,000.00
Out of stock right now
We are out of this one at the moment. Message us and we will tell you what the lead time is, or what else does the same job.
Ask us when it is back See what else is in stock- Genuine stock. Sourced from authorised distributors, warranty intact.
- Delivered across Tanzania with additional delivery charges.
- Multiple payment options.
Payment Options
- Cash on Delivery. You can pay cash at our store on pickup, or pay the rider upon delivery (Dar es Salaam only).
- Pay by Lipa Number
- M-Pesa
- Mixx by Yas
- Airtel Money
- Halopesa
- Selcom
- M-Pesa
- Pay by Card
- Visa
- Mastercard
- American Express
- Discover
- UnionPay
- Visa
- Pay by Apple Pay or Google Pay
- Apple Pay
- Google Pay
- Apple Pay
3 x 16 A
Relay channels (48 A total)
Dry Contacts
Potential-free circuit switching
DIN Rail
Breaker box installation
RJ45 & Wi-Fi
Ethernet, 2.4 GHz Wi-Fi and Bluetooth
Hub-Free
Direct local and cloud control
About this product
Professional DIN Rail Smart Relay
The Shelly Pro 3 is a professional three-channel smart relay designed for installation on standard DIN rails inside electrical breaker boxes and consumer units. Featuring Shelly Gen2 hardware with LAN, Wi-Fi, and Bluetooth connectivity, it provides reliable remote and automated control over three independent circuits without requiring an external automation hub.
Potential-Free Dry Contacts
All three relay channels feature potential-free (dry) contacts, allowing the module to switch independent circuits at varied voltage levels, including low-voltage control circuits. This configuration supports control across up to three different electrical phases, making it suitable for managing commercial lighting, contactors, heating controls, irrigation valves, and motor control circuits from a single DIN rail enclosure.
Reliable Wired Ethernet and Wireless Networking
Metal consumer units often attenuate wireless signals. The Shelly Pro 3 includes an RJ45 Ethernet port for a direct, shielded wired network connection. In addition to Ethernet, it supports 2.4 GHz Wi-Fi and Bluetooth connectivity for pairing through the Shelly Cloud app. The device includes an embedded web server, TLS security, and support for MQTT, HTTP REST webhooks, and local scripting to keep automations running even without active internet access.
Load Capacity and Safety Requirements
The device supports a maximum load of 16 A per channel and up to 48 A across all three channels. It requires a 110-230 V AC power supply with a neutral wire connection to power its internal logic. The housing is built from flame-resistant materials and includes internal temperature protection. The Pro 3 is an on/off switching relay and does not include power metering. Installation must be performed by a qualified electrician inside the distribution board.
Description supplied by the manufacturer.
Specifications
| Model | Shelly Pro 3 |
|---|---|
| Mounting | DIN rail mountable in breaker box |
| Number of Channels | 3 independent relay channels |
| Output Contact Type | Potential-free (dry) contacts |
| Maximum Load Current | 16 A per channel, 48 A total |
| Power Supply | 110-230 V AC (+/- 10%), 50/60 Hz |
| DC Power Supply | No |
| Device Power Consumption | Under 3 W |
| Neutral Wire Required | Yes |
| Power Measurement | No |
| Network Connectivity | RJ45 Ethernet, Wi-Fi 802.11 b/g/n (2.4 GHz), Bluetooth |
| Wi-Fi Range | Up to 50 m outdoors, up to 30 m indoors |
| Operating Temperature | -20 C to +40 C |
| Dimensions | 96 x 53 x 59 mm |
| Voice Assistant Support | Amazon Alexa, Google Home |
| Product code | 2155 |
| Category | Smart Relays |
| Availability | Out of stock - ask us for the lead time |
What’s in the box
Not yet defined.
We are still collecting box contents from the manufacturers. Ask us on WhatsApp and we will open one on the shelf and tell you exactly what is inside.
Questions
Does the Shelly Pro 3 measure electricity consumption?
No. The Shelly Pro 3 is designed for switching only and does not include power metering hardware.
Does this relay require a neutral wire?
Yes. The Shelly Pro 3 requires a neutral wire connection alongside mains AC power to operate its internal electronics.
Can the Shelly Pro 3 switch different phases or voltages?
Yes. Because the three relay channels use potential-free dry contacts, each channel can switch an independent circuit, including different electrical phases or low-voltage control lines.
Do I need a separate smart home hub to use this relay?
No hub is required. The device connects directly to your local network via Ethernet or Wi-Fi, and features an onboard web server as well as Shelly Cloud and local API support.
Who should install the Shelly Pro 3?
The device is mounted directly onto a DIN rail inside an electrical breaker panel and must be installed by a qualified electrician.
Anything else? Ask us on WhatsApp and we will tell you straight.
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