Device profile · Specifications & compatibility
Shelly Dimmer Gen4
Shelly · Relays · Model S4DM-0A102US
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- Shelly Dimmer Gen4 lists Relay Channels: 1; Resistive Maximum Load Current: 1.7A; Wet Contact Mode.
- Check whether the outputs are independently controlled and confirm the rating for each channel.
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- Recorded year
- 2026
- Recorded warranty
- 3 years
- Dimensions
- 38.5 x 43.5 x 17 mm
- Weight
- 24.3g
The details that shape your choice
Shelly Dimmer Gen4 Quick Features
Start with these specifications, then check the full details and conditions below.
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From specification to decision
Shelly Dimmer Gen4: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
Matter support is listed, making it a candidate for a compatible Matter setup after model and feature checks. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity. Matter certified by the CSA as Shelly Dimmer Gen4 US, certificate CSA2570AMAT46684-24
View Matter details →A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. Covered by the official Home Assistant Shelly integration, and reachable over Matter as well
View Home Assistant details →Apple Home support is listed as an integration option. Check the model, firmware, exposed controls and any additional hardware requirements. Via Matter
View Apple Home details →
What to consider
No specific limitation is established here. Check installation requirements and compatibility before choosing.
Still needs verification
Confirm these details if they matter to your setup.
Questions About Shelly Dimmer Gen4
How many relay channels does Shelly Dimmer Gen4 have?
Relay Channels: 1. Check whether the outputs are independently controlled and confirm the rating for each channel. Single-channel dimming controller with one Light component (light:0) on two internally bridged output terminals
View Relay Channels specifications →What is the resistive-load current of Shelly Dimmer Gen4?
Resistive Maximum Load Current: 1.7A. Verify the actual load type, voltage and installation requirements before selecting the device. Output circuit rating: max. current 1.7 A
View Resistive Maximum Load Current specifications →Does Shelly Dimmer Gen4 support wet-contact operation?
Yes, according to the listed specifications. Powered contacts and dry contacts serve different wiring needs. Follow the exact equipment and relay instructions. The output terminals switch the mains live feeding the load
View Wet Contact Mode specifications →Does Shelly Dimmer Gen4 support Matter?
Matter support is specified. Confirm regional voltage and the supported dimmable-load type before installation. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.
Source: Shelly Dimmer Gen4 manufacturer product page · Checked 2026-10-04
View Matter specifications →Does Shelly Dimmer Gen4 work with Home Assistant?
Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. Covered by the official Home Assistant Shelly integration, and reachable over Matter as well
View Home Assistant specifications →Explore the full picture
Shelly Dimmer Gen4 Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
3 of 46 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →
Features12 fields
| Relay Channels | 1Details & conditionsSingle-channel dimming controller with one Light component (light:0) on two internally bridged output terminals |
|---|---|
| Energy Monitoring | YesManufacturer sourceThe dimmer monitors electrical consumption. Shelly Dimmer Gen4 manufacturer product page →
Confirm regional voltage and the supported dimmable-load type before installation. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsReports voltage, current and consumption in watts |
| Power Off Memory | YesDetails & conditionsThe Light component sets the output state on power on, with restore_last among the options |
| Wireless Switch Mode | YesDetails & conditionsThe input mode can be set to detached, so the physical switch stops driving the output and only triggers automations |
| Dry Contact Mode | NoDetails & conditionsThe two output terminals carry the dimmed live, so there is no potential-free contact |
| Wet Contact Mode | YesDetails & conditionsThe output terminals switch the mains live feeding the load |
| Interlock Mode | No |
| Din Rail Mount | NoDetails & conditionsIn-wall mounting, designed to fit behind a switch |
| On Off Button | NoDetails & conditionsThe single control button handles the access point, factory reset, the Zigbee profile and dimming calibration, not on/off |
| Automations | YesDetails & conditionsBasic and advanced schedules, auto on/off timers, local actions, webhooks and up to 10 scripts |
| Zigbee Router | YesDetails & conditionsActs as a Zigbee repeater |
| Ota | Yes |
Power17 fields
| Ac Power | Yes |
|---|---|
| Ac Load Voltage | 100-120 VDetails & conditionsPower supply: 120 VAC, 60 Hz. The device label reads 100-120 V~ 60 Hz. |
| Resistive Load | YesDetails & conditionsIncandescent bulbs up to 200 W and halogen lamps up to 200 W |
| Resistive Maximum Load Power | 200 W |
| Resistive Maximum Load Current | 1.7ADetails & conditionsOutput circuit rating: max. current 1.7 A |
| Inductive Load | YesDetails & conditionsIron-core transformer with low-voltage incandescent lamps, up to 200 VA |
| Inductive Maximum Load Power | 200 VA |
| Inductive Maximum Load Current | 1.7ADetails & conditionsOutput circuit rating: max. current 1.7 A |
| Capacitive Load | YesDetails & conditionsTrailing edge dimmer for dimmable electronic transformers up to 200 W and dimmable LED lamps up to 150 W |
| Capacitive Maximum Load Power | 200 W |
| Capacitive Maximum Load Current | 1.7ADetails & conditionsOutput circuit rating: max. current 1.7 A |
| Dc Power | No |
| Dc Maximum Load Power | Not applicable / unspecified |
| Dc Maximum Load Current | Not applicable / unspecified |
| Dc Load Voltage | Not applicable / unspecified |
| Neutral Required | YesDetails & conditionsShelly Dimmer Gen4 US does not support wiring without N line |
| Idle Consumption | 1.5W |
Connectivity7 fields
| 2.4 GHz Wi-Fi | YesDetails & conditions802.11 b/g/n/ax on 2401-2483 MHz, and the device can act as a Wi-Fi range extender |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | YesManufacturer sourceBluetooth supports setup. Shelly Dimmer Gen4 manufacturer product page →
Confirm regional voltage and the supported dimmable-load type before installation. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsBluetooth 5.0, and the device works as a BLE gateway for other Shelly BLU devices |
| Z Wave | No |
| Zigbee | Zigbee Hub requiredDetails & conditions802.15.4 Zigbee, selected with five presses of the control button (Matter is the default profile) |
| Thread | No |
| Radio Frequency | No |
Integrations6 fields
| Google Home | Yes |
|---|---|
| Alexa | Yes |
| Apple Home | YesDetails & conditionsVia Matter |
| SmartThings | YesDetails & conditionsVia Matter |
| Home Assistant | YesDetails & conditionsCovered by the official Home Assistant Shelly integration, and reachable over Matter as well |
| Matter | YesManufacturer sourceMatter support is specified. Shelly Dimmer Gen4 manufacturer product page →
Confirm regional voltage and the supported dimmable-load type before installation. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsMatter certified by the CSA as Shelly Dimmer Gen4 US, certificate CSA2570AMAT46684-24 |
Safety Features4 fields
| Overheating Protection | Yes |
|---|---|
| Overvoltage Protection | YesDetails & conditionsOvervoltage and undervoltage protection |
| Overcurrent Protection | Yes |
| Overpower Protection | Yes |
How this device compares
Shelly Dimmer Gen4 vs Other Similar Models
Statistical context from 48 relays in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
Energy Monitoring: 21 of 48 known answers are Yes
Features: 44% among explicit Yes/No answers; 0 of 48 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
2.4 GHz Wi-Fi: 24 of 48 known answers are Yes
Connectivity: 50% among explicit Yes/No answers; 0 of 48 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Wireless Switch Mode: 18 of 35 known answers are Yes
Features: 51% among explicit Yes/No answers; 13 of 48 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
17 of 48 models are from Shelly
Counts relays listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare Shelly Dimmer Gen4 vs Similar Relays
See how Shelly Dimmer Gen4 stacks up against other relays in this catalog. Compare specifications, compatibility and pricing.
Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.