---
title: Shelly 1 Gen3 Wi-Fi Operated Smart Switch
date: 2025-08-21T11:47:40Z
modified: 2026-06-08T09:35:28Z
permalink: "https://tech.co.za/product/shelly-1-gen3-wi-fi-operated-smart-switch/"
type: product
status: publish
excerpt: Shelly 1 Gen3, Wi-Fi-Operated Smart Switch to Control Remotely a Wide Range of Home Appliances and Office Equipment
wpid: 549691
product_brand:
  - Shelly
product_type:
  - simple
product_cat:
  - Accessories
featured_image: "https://tech.co.za/wp-content/uploads/2025/08/SHELLY-1-GEN3a.png"
---

### Wi-Fi-operated smart switch.​

Allows control remotely a wide range of home appliances and office equipment (lights, powerlines, security systems, heaters, radiators, sockets, LED strips, etc.) from anywhere..

- Dry contacts (potential-free)​ – option for contactor control
- New processor – ESP-Shelly-C38F chip with an increased memory of 8 MB
- Improved durability of terminals
- High security
- Wi-Fi range extender & Bluetooth gateway
- Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates
- No HUB required! Easy control through Shelly Smart Control app, various home automation protocols, platforms, as well as voice assistants
- Supports KNXnet / IP communication

### Diagrams

**WIRING – 110V-240V AC**

![](https://shellysa.co.za/wp-content/uploads/2025/07/shelly-1-gen3_wiring_AC.png)

**WIRING – 24V-48V DC**

![](https://shellysa.co.za/wp-content/uploads/2025/07/shelly-1-gen3_wiring_24-48VDC.png)

**WIRING – 12V DC**

![](https://shellysa.co.za/wp-content/uploads/2025/07/shelly-1-gen3_wiring_12VDC.png)

### SPECIFICATIONS



| Quantity | Value |
| --- | --- |
| **Physical** |  |
| Size (HxWxD): | 37x42x16 / 1.46×1.65×0.63 |
| Weight: | 26 g / 0.92 oz |
| Screw terminals max torque: | 0.4 Nm / 3.5 lbin |
| Conductor cross section: | 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, and bootlace ferrules) |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting: | Wall console |
| Shell material: | Plastic |
| Shell color: | Blue |
| Terminal Color: | Black |
| **Environmental** |  |
| Ambient working temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| **Electrical** |  |
| Power supply: | 110-240 V~ 24-48 V⎓ 12 V⎓ |
| Power consumption: | < 1.2 W |
| External protection: | Cable protection switch in accordance with EN60898-1 (tripping characteristic B or C, max. 16 A rated current, min. 6 kA interrupting rating, energy limiting class 3) |
| **Output circuits ratings** |  |
| Max. switching voltage: | 240 V~ 30 V⎓ |
| Max. switching current: | 16 A/240 V~ 10 A/30 V⎓ |
| **Sensors, meters** |  |
| Internal-temperature sensor: | Yes |
| **Radio** |  |
| Wi-Fi |  |
| Protocol: | 802.11 b/g/n |
| RF band: | 2401 – 2483 МHz |
| Max. RF power: | < 20 dBm |
| Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) |
| **Bluetooth** |  |
| Protocol: | 4.2 with BLE |
| RF band: | 2400 – 2483.5 MHz |
| Max. RF power: | < 4 dBm |
| Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) |
| **Microcontroller unit** |  |
| CPU: | ESP-Shelly-C38F |
| Flash: | 8MB |
| **Firmware capabilities** |  |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |