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Shelly Pro Dimmer 1PM

Device image

Shelly Pro DImmer 1PM.jpg

Device identification

  • Device name: Shelly Pro Dimmer 1PM

  • Device model: SPDM-001PE01EU


  • Device Bluetooth ID: 0x200D

Short description

Shelly Pro Dimmer 1PM (the Device) is a DIN-rail mountable, one-channel smart dimmer. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services. The Device can be accessed, controlled, and monitored remotely from any place where the User has internet connectivity, as long as it is connected to a Wi-Fi router and the Internet. Shelly Pro Dimmer 1PM has an embedded Web Interface which can be used to monitor and control the Device, as well as adjust its settings.

Main features

  • DIN rail mountable

  • Automatic dimming calibration: Provides smooth dimming throughout the entire range.

  • Switch/Button input mode: Allows flexible input control through switches or buttons.

  • One/dual button dimming control: Allows to use the full functionalities of the Device for dimming control with any wall switch configuration.

  • Night mode: Enables to set a specific brightness of input lights during nighttime.

  • Min/Max brightness: Reframes the range of the dimming signal to get more precise brightness control on the output.

  • Button fade rate: Controls how quickly the output brightness changes while holding the button(s).

  • Transition duration: Controls the time for dimming from 0 to 100 %.

  • Weekly schedules: Supports daily schedules and routines, including setting of brightness, transition duration, and flip value of the dimming signal.

  • Auto on/off timers: Enables auto on/off timer setting.

  • Local actions: Allows creating automation scenarios within the local Wi-Fi network, including setting of brightness, transition duration, and flip value of the dimming signal.

  • Webhooks: Support automation through lightweight, event-driven communication with other devices.

  • BLE Gateway: Facilitates communication between BLE and Wi-Fi-enabled devices.

  • Wi-Fi Range Extender: Retransmits the Wi-Fi signal and extends its reach.

  • Scripting: Allows creating automation scenarios through scripts.

  • Compatibility: Highly compatible with 3rd Party home automation systems.

  • No need for hub: Ready for use locally or remotely via Shelly Smart Control or 3rd Party systems.

Use cases

  • Control brightness of dimmable lights within the 110-240 V range to set the perfect brightness.

  • Create smart schedules to have lights automatically adjust their brightness throughout the day.

  • Retrofit your existing lighting system with the Pro Dimmer and continue using your current switches.

  • Sync your lights with sunrise and sunset times easily using smart schedules.

  • Activate a night mode for reduced brightness during nighttime hours.

  • Integrate the Pro Dimmer with third-party systems like Home Assistant, Google Home, Alexa, and SmartThings for expanded control options.

  • Utilize the device to dim lights up or down with a single or double button press.

  • Monitor and measure power usage of connected lights for energy management.

  • Achieve precise and customized lighting control for professional installations on DIN rail.


Amazon Alexa supported capabilities

  • Yes

Google Smart Home supported traits

  • Yes

Samsung SmartThings supported capabilities

  • Yes

Simplified internal schematics

Device electrical interfaces


  • 2 switch/button inputs on screw terminals: SW1, SW2

  • 2 power supply inputs on screw terminals: 1 L and 1 N


  • 1 output: O

Addon interface

  • Shelly proprietary serial interface

⚠CAUTION! High voltage on the add-on interface when the Device is powered!

Ethernet port

  • 1 RJ45 connector

⚠CAUTION! Plug in or unplug the LAN cable only when the Device is powered off! The LAN cable connector must not be metallic in the parts touched by the user to plug in or unplug the cable.


  • Wi-Fi

  • Ethernet

  • Bluetooth

Safety features

  • Overheating protection

  • Overvoltage protection

  • Overcurrent protection

  • Overpower protection

Supported load types

  • Dimmable LED lamps: up to 200W

  • Incandescent bulbs: up to 200W

  • Halogen lamps: up to 200W

  • Iron-core transformer with low-voltage incandescent lamps: up to 200VA

  • Dimmable electronic transformers: 200W

User interface


  • One (Reset) button

    • Press and hold for 5 seconds to enable Device access point and Bluetooth connection.

    • Press and hold for 10 seconds to factory reset the Device.


  • LED indication

    • Power (red): Red light indicator will be on if power supply is connected.

    • Wi-Fi (varies):

      • Blue light indicator will be on if in AP mode.

      • Red light indicator will be on if in STA mode and not connected to a Wi-Fi network.

      • Yellow light indicator will be on if in STA mode and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud disabled.

      • Green light indicator will be on if in STA mode and connected to a Wi-Fi network and to the Shelly Cloud.

      • The light indicator will be flashing Red/Blue if OTA update is in progress.

    • LAN (green): Green light indicator will be on if LAN is connected.

    • Out (red): Red light indicator will be on if the Output is on.





Size (HxWxD):

94x19x69 mm / 3.70x0.75x2.71 in


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)


DIN rail

Shell material:


Shell color:



Ambient working temperature:

-20 °C to 40 °C / -5 °F to 105 °F


30 % to 70 % RH

Max. altitude:

2000 m / 6562 ft


Power supply:

110 - 240 V~ 50/60 Hz

Power consumption:

< 2 W

External protection:

10 A, tripping characteristic B or C,
6 kA interrupting rating,
Energy limiting class 3

Dimming type:

Trailing edge

Output circuits ratings

Max. output power:

200 W

Sensors, meters

Voltmeter (AC):


Ammeter (AC):


Power and energy meters:


Internal-temperature sensor:





802.11 b/g/n

RF band:

2401 - 2483 МHz

Max. RF power:

< 20 dBm


Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors
(Depends on local conditions)




RF band:

2400 - 2483.5 MHz

Max. RF power:

< 4 dBm


Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions)

Microcontroller unit




8 MB

Firmware capabilities



Webhooks (URL actions):

20 with 5 URLs per hook





Basic wiring diagrams




SW1, SW2

Switch/button input terminals controlling O


Live (110-240 V) cable


Load circuit output terminal


Neutral cable


Live (110-240 V) terminals


Neutral terminal




Local Area Network RJ 45 connector




Components and APIs


Shelly Pro Dimmer 1PM multilingual EU declaration of conformity.pdf
(Shelly Pro Dimmer 1PM mehrsprachige EU-Konformitätserklärung)

Printed user guide

Shelly Pro Dimmer 1PM multilingual printed user and safety guide.pdf

Installation guides

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