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Shelly Pro 4PM is a DIN rail-mounted, 4-channel smart relay designed for professional-grade home and business automation. Supporting up to 16A per channel and a total of 40A, it features integrated power metering, multi-protocol connectivity (Wi-Fi, LAN, Bluetooth), and advanced scripting capabilities. Compatible with Alexa, Google Home, and major smart home platforms, it offers precise energy monitoring, customizable automation, and robust safety protections, making it the ultimate tool for energy-efficient, intelligent control of appliances and systems.
















| ASIN | B09CKVZSDY |
| Best Sellers Rank | #85,603 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Home Automation Modules |
| Brand | Shelly |
| Brand Name | Shelly |
| Connector Type | Screw |
| Contact Material | Steel |
| Contact Type | Normally Open |
| Current Rating | 40 Amps |
| Customer Reviews | 4.4 out of 5 stars 741 Reviews |
| Global Trade Identification Number | 03800235268049 |
| Included Components | 1 x Shelly Pro 4PM, User manual |
| Item Weight | 150 Grams |
| Manufacturer | Allterco Robotics LTD. |
| Maximum Switching Current | 40 Amps |
| Model | 3800235268049 |
| Mounting Type | DIN Rail Mount |
| Operation Mode | Automatic |
| Part Number | 804 |
| Smart Home Compatibility | Smart Home Compatible |
| Specification Met | CE, RoHS |
| Unit Count | 1.0 Grams |
| Upper Temperature Rating | 105 Degrees Fahrenheit |
| Wattage | 9600 watts |
T**S
Shelly devices are incredible
These controllers are the best. They are simple to setup and work fantastically with Home Assistant. I have automated every single light with three of them.
J**S
Great product
I use one of these for each of my laser cutters. One output for the laser, one to the chiller and one to my exhaust fan. Super easy to set up with the Shelly app and then pull into home assistant. From home assistant it’s a walk in the park to then automate each relay output.
J**G
Great device! Solid app to control it!
Very cool unit. I'm using it to control the lighting in my farm shop, the lights on the exterior of the shop, and also to trigger my electric door strike for the walk-through door and its programmed to turn the lights on if they're not already on. The coolest part is I have the fourth channel controlling a 60 amp contact closure relay to send power to my fuel barrels in my farm yard. This way no one can steal fuel All I have to do is open the app press the button and I have it programmed to shut off after 30 minutes. It works so slick! I really wish the unit had normally closed and/or dry contacts. Every output controls an additional relay because I'm either controlling 220 volts or the amperage exceeds the rating of the contacts. So the wattage function of the unit is useless in my situation. Outside of that, it works every time. I've since bought another one I'm going to wire it up to control my three-button overhead commercial door. The app to control this is very solid. If you're not patient or tech-minded you're going to struggle with this unit but stick with it and you'll get it. I'm completely hooked on these Shelly devices. I'm thinking of other ways I can use them like a timer to turn off my battery chargers for my Milwaukee tools so they don't blow up overnight. Currently wiring up exterior lights of my home on timers within the Shelly. My wife just rolls her eyes but I'm having fun! :) UPDATE: I've currently added another pro4 for more control over lights and I've added a pro 3 to control a commercial overhead door with a three-button open/ close /stop control. Each relay on the pro 3 performs the open/ close/ or stop function With an external relay for the stop circuit requiring continuous normally closed contacts. If I get around to it I'll post a picture of the wiring schematic.
L**S
Works well with WiFi
I give 4 starts because 3 starts are not for a good quality product; seems it works as intended, I have installed it but unfortunately, I noticed that Neutral and Switch ports are very small compared to Outputs ports, so it hard on standardize wire gauge across the device, For Output ports, I was able on installing ferrules, but at the Neutral and Switch ports don’t, It may sounds as risky on electrical installations, At this time, critical equipments are managed and monitored via WiFi, I would redesign the device by removing ethernet port to make Neutral and Switch port bigger, I’ll think twice on rebuying the same device again, I may decide on buying contactors instead.
V**D
Superior
The 4PM is used in my attic, managing the attic, bathroom, dryer fans, lights, and environmental sensors. I am using it to see if running the various fans is cost-effective and if the attic fan has any effect on the temperature in the house and the cost of cooling or heating. It was easy to set up and configure; it was quickly discovered by my home automation solution. Din rail makes it easy to put in an enclosure.
C**R
Great product, USA users might need to do some research for compliance or convenience
I really like this product, and look forward to more like it, hopefully Shelly continues to deliver. My biggest gripe is really with respect to the terminal sizing on the unit, and the literature included; it's hard to know ahead of time that the terminals are smaller than what the average US customer might be used to in a residential setting, and these things are really not fit for larger romex conductors, and I've run into scenarios that were a little sketchy when clients jumpered in wire with less ampacity to fit the Shelly relay at hand. Aside from that I'm a fan, just do a deep dive with conductor sizes and ratings and cross against the products!
T**Y
Get the Tongou TOVMT 2P 16A instead, you will thank me later
The Shelly Pro 4 feels cheaply made, not sure why it's marketed so high, given that it's made in china. Also, the Shelly Pro 4 can't handle a dual load circuit, which is common in 240v powered pool pumps. Your best bet is to order a Tongou TOVMT 2P 16A, which can handle a dual load circuit of 240v.
M**.
Relay
Works great
J**Z
Buen equipo
Buen controlador y fácil de prgramar
S**A
Super 4 Kanal Schaltaktor mit LAN, W-Lan, BT
Die Pro Serie von Shelly ist für die Montage auf der Hutschiene gedacht. Es gibt den Aktor auch in einer 2 oder 3 Kanal Version, diese sind jedoch vom Preis je Kanal meistens erheblich teurer. Ich habe die 4 Kanal Version bestellt. Der Aktor lässt sich ganz leicht anschließen und in Betrieb nehmen. Phase und Nullleiter anschließen und je Ausgangskanal einmal geschaltet Phase anschließen. DIe Schraubklemmen sind groß genug um auch 2,5 m² Kabel auf zu nehmen. Installation durch BT in der Shelly App ganz einfach. Kostenloser Fernzugriff durch die App (wenn mit der kostenlosen Shelly Cloud verbunden) Wer Datenschutzbedenken hat, kann den Aktor aber auch nur im lokalen Netz Betreiben. LAN Anbindung, dadurch kann der Aktor auch in die 100 Meter entfernte Gartenhütte und das beste ist der Aktor kann dann wiederum ein W-Lan Signal senden, womit sich andere Geräte verbinden können. Fungiert also ncoh als Access Point. Je Kanal können bis zu 16 A geschaltet werden. Bedienung geht über das kleine Menü direkt am Aktor. Jeder Kanal hat noch einen Schalteingang wo z.B. auch ein Bewegungsmelder oder ein herkömmlicher Taster oder Schalter angeschlossen werden kann. (Die Eingangsart kann im Setup gewählt werden) Bedienung dann über die Shelly App oder z.B. auch Fremdsystem wie Home Assistant Und jedes Shelly Gerät ist auch im WebInterface über die IP bedienbar udn konfigurierbar. Nachteile: Dieser Aktor bietet nur einen 230 Volt EIngang es können also keine potentialfreien Geräte wie ein Garagentor und auch keine 24 Volt Ventile wie für die Gartenbewässerung geschaltet werden (dies geht bei dem vergleichbaren Homematic IP Wired System) Und es können dadurhc auch nicht verschiedene Phasen je Kanal verwendet werden. W-Lan es kann nur das PW aber nicht die SSID geändert werden. Der Aktor kann also nicht als AP Point für das normale W-Lan dienen. Wenn dann zusätzlich ein Shelly Aktor per W-Lan eingebunden wird, ist dieser z.B. im HomeAssistant nicht so ohne weiteres zu erreichen, da er im Anderen IP Adressbereich auftaucht und erst das netzwerk entsprechend konfiguriert werden muss. Wer 230 Volt Geräte schalten muss und Ordnung im Schaltschrank haben will, ist mit diesem Aktor sehr gut bedient und dass zu einem sehr günstigen Preis. @ Shelly - bitte bringt diesen Aktor auch als 24 Volt DC Variante zum schalten von Bewässerungsventiolen auf den Markt
B**N
Fantastisk produkt
Bättre än förväntat. Enkel progamering.
R**.
Automatisation heures creuses
Efficace et simple pour programmer le fonctionnement du chauffe-eau pendant les heures creuses (les moins chères €)
B**L
Einfach zum Handhaben - Auch vom Laien bedienbar
Einfache Montage Leichte Programmierung Perfekt zum Eistellen per SmartPhone perfekt steuerbar Tipp: Bei Problemen(Ghost Effekte) ist ein Shelly RC Glied nötig- Das liegt aber nicht der Shelly sondern an den "schlecht" entstörten Leuchten aus den Baumarkt.
Trustpilot
3 weeks ago
1 month ago