# Shelly Pro 3 - Three-Channel Relay With Potential-Free Outputs Supporting A Total Of 48A

## Shelly Pro 3 - Three-Channel Relay With Potential-Free Outputs Supporting A Total Of 48A

Shelly Pro 3 is a DIN-rail mountable three-channel smart relay with potential-free (dry contact) outputs, allowing it to switch loads of any voltage type independent of its own supply voltage, including three-phase circuits. With Wi-Fi, LAN, and Bluetooth connectivity and a total switching capacity of 48A across its three 16A channels, it targets industrial and commercial automation where galvanically isolated switching is required rather than direct power measurement.

### Specifications

**SKU**

SHELLY PRO 3

**Brand**

Shelly

**Category**

Smart Home

**Key Specs**

Channels: 3; Max load: 16A per channel, 48A total; Contact type: potential-free (dry contacts), no power metering; Connectivity: Wi-Fi, 10/100 Ethernet (LAN), Bluetooth; Power supply: 110-240V AC; Mounting: DIN-rail (breaker box); Protections: temperature, overpower, overvoltage; Protocols: Shelly Gen2 RPC/MQTT, local + cloud control

## Details

- **Price:** 2339.0 ZAR
- **Vendor:** Shelly
- **Type:** Smart Home
- **Tags:** Nology, Shelly, Smart Home

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2339.00 ZAR | In stock |

## Images

- Shelly Pro 3 - Three-Channel Relay With Potential-Free Outputs Supporting A Total Of 48A

---

> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/shelly-shelly-pro-3)
> Updated: 2026-07-07