Shelly
Pro Dimmer 1PM
A DIN-rail dimmer for one lighting circuit, with power metering and Ethernet. Dimming run from the switchboard, not the wall box.
$99.95 inc GST In stock at supplier · dispatches in 2 business days
1
Free shipping over $150 Ordered in from our supplier. Allow about 2 business days before it dispatches.
30-day returns Unopened items in their original packaging
Everything you need to know
The sections below cover what this dimmer can do, the jobs people put it on, the full specifications, and how warranty and returns work. If something's still unanswered, the questions at the bottom cover the common ones.
Product features
Smart control from the switchboard, switches untouched
Pro relays install at the switchboard, so the smart layer lives in one place instead of scattered through wall boxes around the house. Every wall switch stays exactly where it is and keeps working the way it always has; the relay adds app control, schedules and automations on top. It's the tidiest way to make a whole house smart without changing a single thing the family touches.
Installed at the board, not in wall boxes
Every existing switch keeps working
One location for your electrician to service
DIN rail and Ethernet, like the rest of your board
The Pro series mounts on a DIN rail alongside your breakers and adds an Ethernet port, so control traffic can run over cable rather than Wi-Fi. Multi-channel models switch several circuits from one unit, and the form factor is one your electrician already knows. Everything the compact relays do, schedules, scripting and local control included, is here too.
DIN-rail mount
Ethernet plus Wi-Fi
Multiple circuits from one unit
Brightness, fades and schedules
Set the brightness from the app, the wall switch or a voice assistant, and let schedules do the rest: they set brightness and fade duration as well as the hour, so lights can drift down over minutes rather than snapping between off and full.
Works with dimmable LEDs and dimming drivers
Schedules set brightness and fade duration
Control from the app, the switch or a voice assistant
See what every circuit really uses
PM models meter their own output, so you can watch live power draw and review consumption history per channel in the app. That's enough to find the appliances quietly costing you money, confirm the hot water or pool pump actually ran, or catch a heater someone left on. Set thresholds and the relay can act on them itself, switching off a load that draws too much for too long.
Live power draw and consumption history
Per-channel metering
Overpower protection you can configure
Automations that don't need the internet
Schedules, timers and scenes run on the relay itself, not on a server overseas. Set lights for sunset, a towel rail for weekday mornings, or a fan to run down after the bathroom light goes off, and it all keeps working through an internet outage. There's no subscription, and the embedded web interface gives you full control from a browser on your own network.
Schedules and scripts run on the device
No cloud account required for local control
Keeps working when the internet doesn't
How Shelly works
A Shelly is a small module that makes wiring you already have controllable. It joins your Wi-Fi directly, holds its schedules and scenes on the device itself, and keeps running them if your internet drops. Nothing you set up depends on Shelly's servers being reachable.
The device
The brain is the device
Shelly does the thinking locally, not in a data centre. Schedules, scenes and logic are stored on the unit and run there, so the lights still come on at dusk when the internet is out.
The network
No hub, no bridge
There is nothing to buy before the first one works. Where a Philips Hue setup is built around a Bridge that every light talks through, a Shelly joins your router directly and answers your phone from there.
The control
The app is optional
Every Shelly serves its own web interface, so you can set it up and run it from a browser on your own network, with no account. The Shelly Smart Control app and Shelly Cloud are free and add remote access and voice control, but nothing needs them.
The generations
What Gen1 to Gen4 means
Shelly has run through four hardware generations, and the same product name can exist in more than one of them. Later generations are faster and carry more radios than the ones before, which is why the generation is part of the name. The specifications on each page tell you which one you are looking at.
Getting started
1
It goes behind what you already have Start here
Shelly retrofits. The module fits behind the switch, socket or appliance that is already there, so your switch plates and fittings stay as they are and the original switch keeps working for anyone who just wants to flick it. Anything wired into a mains circuit is a job for a licensed electrician.
2
Open by design Then run it your way
Shelly publishes its local API and does not put it behind a developer account. Devices answer HTTP and MQTT on your own network and can run small scripts on themselves. That is why Shelly is the default choice for people building on Home Assistant, which ships an official Shelly integration.
Start with one and add more whenever you like. There is no hub to outgrow, and each Shelly works on its own whether you ever add another or not.
Works with
Also works with
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Pairs with Amazon Alexa
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Pairs with Google Home
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Pairs with Home Assistant
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Pairs with SmartThings
Connects over
On your Wi-Fi
Joins your home network; control from the app, no hub or bridge needed.
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Ethernet
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Wi-Fi
Set up over Bluetooth
Used once, to get it onto your Wi-Fi.
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Bluetooth
Works offline
Runs on your home network. Only remote access needs the internet.
Specifications & Installation
Setup · 2:04
How to install it
Shelly's own step-by-step install, from isolating the power to mounting it on the DIN rail and wiring it in.
Watch setup videoNo specifications match.
Build
- Type
- Module
- Gangs
- 1 Also available: 2
- Housing material
- Plastic
- Power
- Hardwired
- Supply voltage
- 110–240 V
- Standby power
- 2 W
- Generation
- Gen2
- Dimming method
- Trailing edge
- Max load
- 200 W
- Works with loads
- LEDHalogenIncandescent
- External protection
- 10 A, tripping characteristic B or C, 6 kA interrupting rating, Energy limiting class 3
- Dimming type
- Trailing edge
- Standard
- 802.11 b/g/n
- Range (indoors)
- 30 metres
- Version
- 4.2
- Range (indoors)
- 10 metres
- RF band
- 2400 - 2483.5 MHz
- Max. RF power
- < 4 dBm
- Operating temperature
- -20–40 °C
- Operating humidity
- 30–70 % RH
- Max altitude
- 2000 metres
- Size (HxWxD)
- 94x19x69 mm / 3.70x0.75x2.71 in
- Weight
- 75 g / 2.7 oz
- Screw terminals max torque
- 0.4 Nm / 3.54 lbin
- Conductor cross section
- 0.5 to 2.5 mm² / 20 to 14 AWG (green connectors) 0.5 to 1.5 mm² / 20 to 16 AWG (blue connector) (solid, stranded, and bootlace ferrules)
- Conductor stripped length
- 6 to 7 mm / 0.24 to 0.28 in (green connectors) 5 to 6 mm / 0.20 to 0.24 in (blue connector)
- Mounting
- DIN rail
- Shell color
- Lime
- Max. current
- 0.85 A
- Max. output power
- 200 W (at 220 V~) 100 W (at 120 VAC)
- Voltmeter (AC)
- Yes
- Ammeter (AC)
- Yes
- Power and energy meters
- Yes
- Internal-temperature sensor
- Yes
- 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)
- CPU
- ESP32-D0WDQ6
- Flash
- 8 MB
- Schedules
- 20
- Webhooks (URL actions)
- 20 with 5 URLs per hook
- Scripting
- Yes
- MQTT
- Yes
Use cases
Lights that ease into the evening
Schedules on the dimmer set brightness and fade time as well as the hour, so the living room drifts down after dinner instead of snapping between full and off. Run it in reverse for gentler mornings.
Down to a glow for movie night
Drop the downlights to a glow from the couch, using the app or a voice assistant, then bring them back up when it's time to tidy. The wall switch still works for everyone else.
Common questions
Quick answers before you buy. We test this gear ourselves. Can't find yours? Ask our Melbourne team
Yes. Pro models wire into the switchboard, which is licensed-electrician work in Australia. For a sparkie it's a familiar job: the unit clips onto the DIN rail like any other module.
In the switchboard. Pro models mount on a DIN rail alongside your breakers and add an Ethernet port for wired control, which is the right shape for whole-home and multi-circuit installs.
Yes. This model meters its own output, so the app shows live power draw and consumption history. You can also set thresholds and have the relay switch off on them.
Shelly · Pro Dimmer 1PM