The Shelly Pro 4PM is a DIN-mountable, one-phase, 4-channel relay, supporting up to 16A per channel with a total device capacity of 40A.
Shelly Pro 4PM is equipped with four integrated precise power meters that allow you to control and monitor the consumption for each channel separately, and includes a 1.8′ colour display with navigation keys.
Equipped with LAN, Wi-Fi, and Bluetooth connectivity, it allows for a more secure and reliable connection. Use scripting functionalities to set custom automation scenes based on various occurrences, weather forecasts, wind forecasts, etc.
Different types of actions, scenarios, and schedules can be set to sync your environment to your daily activities or business needs, via the Shelly smart home ecosystem, including the Shelly Smart Control app – or link it with a popular home automation software such as Home Assistant via a Raspberry Pi!
Enhanced with temperature, overpower, and overvoltage load protection, the Shelly Pro series is designed to be installed inside the breaker box (DIN). Allowing full smart automation with no additional cables or wiring, the Shelly Pro line is perfect for homes, offices, stores, businesses, and manufacturing facilities, as well as new buildings.
View our entire range of Shelly Pro and other professional home automation products.
Note: You may require a neutral wire to use this product. Please research the device and your home wiring (safely, see below) before purchasing.
Shelly Pro – Five-year manufacturer warranty
All Shelly Pro products carry a five-year manufacturer warranty.
This warranty covers any issues with the hardware or firmware that exist at the time of purchase or that appear within the warranty period. The warranty includes all parts of the hardware, such as the body, mechanics, and display (if applicable). However, it does not cover consumable items like batteries or accessories, as their lifespan depends on how much they are used.
⚠️Caution – Read Before Buying⚠️
- Before beginning the installation, please read this guide and any other documents accompanying the device carefully and completely
- Danger of electrocution. The mounting/installation of the device should be performed by a qualified person (electrician)
- Failure to follow the installation procedures could lead to malfunction, danger to your health and life, violation of the law or refusal of legal and/or commercial guarantee (if any)
- Allterco Robotics (makers of Shelly products) and Mann Enterprises LTD are not responsible for any loss or damage in case of incorrect installation or improper operation of this device due to failure to follow the user and safety instructions in the printed guide accompanying this product (also available in the resources section below)
- Do not connect the device to appliances exceeding the given max load.
- Use the device only with a power grid and appliances which comply with all applicable regulations. Short circuit in the power grid or any appliance connected to the device may damage the device.
- Before starting, wire check that the breakers are turned off and there is no voltage on their terminals. This can be done with a phase meter or multimeter. When you are sure that there is no voltage, you can start wiring the cables.
Highlights
- 4 channels, 16A each – Shelly Pro 4PM has a total device output of 40A
- Power monitoring – Shelly Pro 4PM provides precise monitoring of the power consumption
- Wide range of voltage support – Use it to control a wide range of devices and appliances
- LAN, Wi-Fi, and Bluetooth connectivity – LAN connection for high security and reliability. Simultaneous Wi-Fi and LAN usage, as backup when needed
- Scripting capabilities – Shelly Pro 4PM fully supports mjS scripting, allowing you to create further features and functionalities.
- Enhanced safety & security – Improved safety features and TLS 1.2 support, allowing a broad range of secure cloud-connected and local integrations.
Features
- LAN, Wi-Fi, and Bluetooth connection
- 4 outputs, 16A each. Total device maximum of 40A
- Precise power metering
- Overpower and overvoltage protection of the load.
- DIN rail mountable
- 1.8′ colour screen with navigation keys
- 1- phase control
- Easy control through the Shelly app, various protocols, and platforms, as well as voice assistant
- Supports KNXnet / IP communication
Specifications
| Size (HxWxD) | 96x53x59 ±0.02 mm |
| Mounting | DIN rail |
| Screw terminal max torque | 0.4 Nm / 3.5 lbin (green connectors) |
| Conductor cross-section | 0.5 to 2.5 mm² / 20 to 14 AWG (green connectors) |
| Conductor stripped length | 6 to 7mm (green connectors) |
| Shell material | Plastic |
| Colour | Black |
| Ambient temperature | -20 °C to 40 °C |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Power supply voltage AC | 110 – 240 V |
| Power supply voltage DC | N/A |
| Power consumption | < 4 W |
| Neutral not needed | No |
| Max switching voltage AC | 240 V |
| Max switching voltage DC | N/A |
| Max switching current AC | 16 A per channel, 40 A total |
| Max switching current DC | N/A |
| Voltmeter (AC) | Yes |
| Ammeter (AC) | Yes |
| Internal-temperature sensor | Yes |
| RF band | 2400 – 2495 MHz |
| Max. RF power | <20 dBm |
| Wi-Fi protocol | 802.11 b/g/n |
| Wi-Fi Range | Up to 30 m / 100 ft indoors |
| Up to 50 m / 160 ft outdoors | |
| (Depends on local conditions) | |
| Bluetooth Protocol | 4.2 |
| Bluetooth Range | Up to 10 m / 33 ft indoors |
| Up to 30 m / 100 ft outdoors | |
| (Depends on local conditions) | |
| CPU | ESP32-D0WDQ6 |
| Flash | 8 MB |
| Schedules | 20 |
| Webhooks (URL actions) | 20 with 5 URLs per hook |
| Scripting | Yes |
| MQTT | Yes |
| CoAP | No |
Resources
- Shelly Product Documentation
- Printed User Guide (as found within the package)
- Declaration of Conformity
- UK PSTI ACT Statement of Compliance
- Device Identification
- Device name: Shelly Pro 4PM V2
- Device model: SPSW-104PE16EU
- Device SSID: ShellyPro4PM-XXXXXX
- EAN: 3800235268049
Handy Shelly Resources
- Shelly Cloud
- Shelly App
- Apple App Store
- Google Play
- Huawei AppGallery
- Home Assistant Shelly Integration
- Shelly Community Forum
- Shelly Facebook Support Group
- Shelly Knowledgebase
- Shelly Device Finder (easy-to-use software to find Shelly devices in the local network)
- Shelly Developer API
Package Contents
- 1x Shelly Pro 4PM
- 1x User Guide



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