---
title: Shelly 1PM Gen4
date: 2025-08-17T08:50:31Z
modified: 2026-05-22T07:02:19Z
permalink: "https://tech.co.za/product/shelly-1pm-gen4/"
type: product
status: publish
excerpt: "A compact smart switch with power monitoring, multiprotocol support, and fast performance.​\\nPerfect for controlling lights and appliances, it offers remote control and energy savings."
wpid: 549304
product_brand:
  - Shelly
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Accessories
featured_image: "https://tech.co.za/wp-content/uploads/2025/08/SHELLY-1PM-GEN4a.png"
---

- **New** – Multiprotocol connectivity: Choose from Bluetooth, Wi-Fi or Zigbee.
- **New** – Matter certified.
- **New** – Wi-Fi, Zigbee range extender & Bluetooth gateway
- Power monitoring – Equipped with a precise power meter for real-time energy consumption and free storage for data analysis
- Low and high voltage support
- Perfect to retrofit behind existing switches and sockets
- Supports schedules, scenes and local actions
- Supports scripting, HTTPS, MQTTS, Inbound and Outbound Web Sockets
- Supports virtual components
- Supports KNXnet / IP communication
- Internal temperature sensor for overheating protection
- No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Sir, Home Assistant, Apple Homekit or your preferred automation platform.

### Diagrams

**WIRING – 110V-240V AC**

![](https://shellysa.co.za/wp-content/uploads/2025/07/shelly-1pm-gen4_wiring_AC.png)

**WIRING – 24V-30V DC**

![](https://shellysa.co.za/wp-content/uploads/2025/07/shelly-1pm-gen4_wiring_DC.png)

### SPECIFICATIONS



| Quantity | Value |
| --- | --- |
| **Physical** |  |
| Size (HxWxD): | 37x42x16 mm / 1.46×1.65×0.63 inch |
| Weight: | 27 g / 0.95 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: | Red |
| Terminals color: | Grey (Mouse Grey) |
| **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~ 24-30 V⎓ |
| Power consumption: | < 1 W |
| Neutral not needed: | No |
| 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: | 16A (240 V~) 10A (30 V⎓) |
| **Sensors, meters** |  |
| Voltmeter (AC): | Yes |
| Ammeter (AC): | Yes |
| Internal-temperature sensor: | Yes |
| **Radio** |  |
| **Wi-Fi** |  |
| Protocol: | 802.11 b/g/n/ax |
| RF band: | 2412 – 2472 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: | 5.0 |
| RF band: | 2402 – 2480 MHz |
| Max. RF power: | < 4 dBm |
| Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) |
| **Zigbee** |  |
| Protocol: | 802.15.4 |
| Zigbee repeater: | Yes |
| RF bands: | 2400 to 2483.5 MHz |
| Max. RF power: | < 20 dBm |
| Range: | Up to 100 m / 328 ft indoors and 300 meters / 984 ft outdoors (Depends on local conditions) |
| **Microcontroller unit** |  |
| CPU: | ESP-Shelly-C68F |
| Flash: | 8MB |
| **Firmware capabilities** |  |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |