Shelly SHSW-25

2.5

Device type

Smart Switch

Standby power

0.676 W

View discovery and setup instructions for this profile.

Powercalc can discover this model automatically (by device). Look for a discovery prompt in Home Assistant and accept it to create the sensors. About discovery

Through the interface (recommended)

Start the Powercalc config flow, choose Virtual power (library), and pick Shelly → SHSW-25.

Open in Home Assistant

Add this to your configuration.yaml, replacing light.my_light with your own entity.

powercalc:
  sensors:
    - entity_id: light.my_light
      manufacturer: shelly
      model: SHSW-25

Library sensor documentation

Community usage

124 opted-in installations

2.34% of 5,304 reporting installationsOpt in to analytics

Device

Manufacturer: Shelly
Description: Dual-Channel Smart Wi-Fi Relay with Power Monitoring
Aliases: Shelly 2.5
Form factor: In Wall
Connectivity: Wi-Fi
Barcode: 3809511202234
+1 more
Product page: shelly.com
Power monitoring: Yes

Power

Rated power: 1 W claimed

Measurement

Calculation strategy: Multi Switch
Measure device: Shelly PM Mini Gen3
Measure method: Manual
Measure description: The measured device fw: 1.14.1-rc1, Eco Mode enabled, Wifi Client enabled, LED disabled. The result represents the average value of measurements collected from the measurement device API for the following scenarios: dumb device/baseline consumption (~4.9W), all relays turned off, one relay turned on
Mains voltage: 230 V
Measure device firmware: 20241011-114503/1.4.4-g6d2a586
Measure settings: SAMPLE_COUNT: 200SLEEP_TIME: 0.5

Library

Created: Jan 2, 2024, 10:39 PM UTC
Updated: Sep 13, 2026, 9:41 AM UTC
Contributors: Michal Bartak
Discovery: Automatic, by device
Only self usage: Yes

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Shelly SHSW-25

2.5

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

2.5

Set up manually instead

Through the interface .css-bxmwoh{margin:0;font-family:"Roboto","Helvetica","Arial",sans-serif;font-weight:400;font-size:0.875rem;line-height:1.43;letter-spacing:0.01071em;}(recommended)

Or configure with YAML

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Through the interface (recommended)