Shelly Smart Switches: 9 Picks Ranked by Specs
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Finding the right shelly smart switch depends on your wiring setup and available enclosure space. Shelly offers in-wall relays ranging from compact Mini formats to dual-channel units, covering no-neutral wiring, dry contacts, and lighting loads. The Shelly 1 Mini Gen4 Smart Relay Switch leads the lineup because its small footprint fits tight junction boxes and handles dry-contact switching.
We compared 9 products based entirely on the specifications published on their listings. Evaluating dimensions, wiring needs, and channel counts helps you select the exact model for your wall box.
Quick picks
Our 9 picks
Shelly 1 Mini Gen4 Smart Relay Switch
Best for: tight junction boxes and dry-contact switching
- Smart Home Compatibility
- Matter
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee
- Maximum Load
- 8A
- Dimensions
- 0.63 × 1.34 × 1.14 inches
- Weight
- 0.71 ounces
The Shelly 1 Mini Gen4 is a compact 1-channel smart switch featuring dry contacts and triple protocol support for Wi-Fi, Zigbee, and Matter without requiring a hub. Measuring 1.34 by 1.14 by 0.63 inches with an 8A load capacity, it fits inside tight junction boxes, small appliances, or garage door openers. It suits you if you need flexible relay control in cramped spaces.
Pros
- Wi-Fi, Zigbee, and Matter connectivity without a separate hub
- Dry contacts support versatile switching setups like garage doors
- Compact footprint measuring 1.34 x 1.14 x 0.63 inches
- Equipped with 8 MB memory and an upgraded processor
Cons
- 8A maximum load limit rules out heavy-draw appliances
- Single-channel design controls only one circuit
- No integrated power metering listed in specifications
Good fit if
- You need dry contacts for low-voltage or isolated circuits like garage doors.
- You have limited clearance inside standard wall switch boxes.
- You want native Matter, Zigbee, and Wi-Fi protocol support.
Skip if
- You need built-in power measurement to monitor energy usage.
- You need to switch circuits rated higher than 8A.
- You want to control two separate channels from a single device.
Verdict: Shelly 1 Mini Gen4 Smart Switch provides multi-protocol connectivity and dry contact switching in an exceptionally small footprint. It is the top pick when space is limited and an 8A load capacity covers your target device.
Shelly 1PM Mini Gen4 Smart Relay Switch
Best for: compact in-wall power monitoring of small appliances
- Smart Home Compatibility
- Matter
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee, Matter
- Maximum Load
- 8A
- Dimensions
- 0.63 × 1.34 × 1.14 inches
- Weight
- 0.71 ounces
The Shelly 1PM Mini Gen4 Smart Switch is a compact single-channel relay built for tight electrical boxes and small appliances. You get Matter, Wi-Fi, and Zigbee protocol compatibility alongside integrated real-time power monitoring up to an 8A load. It features an onboard processor with 8 MB of memory and operates without a hub. This unit fits your setup if you require energy tracking in confined spaces behind existing wall sockets.
Pros
- Built-in power monitoring with free historical data storage
- Multi-protocol connectivity supporting Wi-Fi, Matter, and Zigbee
- Compact dimensions of 1.34 by 1.14 by 0.63 inches
- 8 MB processor memory for local automation and scenes
- Three-year manufacturer warranty included
Cons
- Current handling capped at 8A maximum load
- Single-channel output restricts switching to one circuit
Good fit if
- You need power metering fitted inside cramped switch boxes or appliance casings.
- You want Matter and Zigbee integration without purchasing an external hub.
- You are automating low-draw devices or appliances rated at 8A or below.
Skip if
- You need to automate high-current devices that pull more than 8A.
- You require dual-channel control over two separate electrical runs.
Verdict: Shelly 1PM Mini Gen4 Smart Switch provides multi-protocol wireless connectivity and energy metering in an ultra-compact relay. It delivers reliable circuit monitoring wherever physical enclosure space is strictly limited.
Shelly 2PM Gen4 2-Channel Relay
Best for: dual-circuit control and motorized window coverings
- Smart Home Compatibility
- Alexa, Google Home, SmartThings, Matter
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee, Bluetooth
- Maximum Load
- 16A per channel
- Dimensions
- 0.63 × 1.65 × 1.46 inches
- Weight
- 0.92 ounces
The Shelly 2PM Gen4 is a dual-channel smart relay switch designed for electrical boxes and automation setups. You get two independent channels supporting up to 16A each, alongside integrated power metering and support for bi-directional motors like motorized curtains. It supports Wi-Fi, Zigbee, and Matter connectivity without requiring a hub. This unit fits you if you need to control and monitor two separate circuits or motorized window coverings from one compact device.
Pros
- Two independent channels handling up to 16A per channel
- Individual power metering for both channels
- Triple protocol support for Wi-Fi, Zigbee, and Matter
- Bi-directional motor support for automated curtains and shutters
Cons
- Base model configuration is Non-UL listed
- Both controlled circuits must operate on a single electrical phase
Good fit if
- You want to automate bi-directional motors such as curtains or shutters.
- You need per-channel power metering across two circuits in one junction box.
- You use Matter, Zigbee, or Wi-Fi platforms without an external bridge.
Skip if
- You need to switch circuits wired across two different electrical phases.
- You require an out-of-the-box UL rating without choosing the specific UL variation.
Verdict: Shelly 2PM Gen4 2-Channel Smart Switch delivers dual-circuit switching, individual power monitoring, and motorized shutter control in a single compact footprint. It gives you flexible multi-protocol integration across Matter, Zigbee, and Wi-Fi networks without an external hub.
Shelly 1PM Gen4 Relay Switch with Power Metering
Best for: single-circuit power monitoring and multi-protocol automation
- Smart Home Compatibility
- Alexa, Google Home, SmartThings, Matter
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee, Bluetooth
- Dimensions
- 0.63 × 1.65 × 1.46 inches
- Weight
- 0.92 ounces
View on Amazon: Shelly 1PM Gen4 Relay Switch with Power Metering
The Shelly 1PM Gen4 Smart Relay Switch installs behind standard wall switches or power sockets to deliver remote control and real-time energy monitoring. You get multi-protocol support covering Wi-Fi, Zigbee, and Matter, along with a built-in Bluetooth gateway. Measuring 1.65 by 1.46 by 0.63 inches, it fits into existing junction boxes. This switch suits you if you want integrated power tracking across major platforms like Home Assistant and Google Home.
Pros
- Built-in power metering tracks real-time electrical consumption
- Supports Wi-Fi, Zigbee, and Matter connectivity protocols
- Functions as an integrated Bluetooth gateway
- Compact dimensions of 1.65 by 1.46 by 0.63 inches fit standard boxes
Cons
- Controls only a single electrical circuit
- Standard model configuration is non-UL certified
Good fit if
- You need real-time power consumption tracking on a single switch or socket
- You use Matter, Zigbee, or Wi-Fi ecosystems without a proprietary hub
- You want Bluetooth gateway functionality embedded in your electrical box
Skip if
- You require dual-channel switching from a single relay module
- You require a pre-certified UL device without choosing an alternate variation
Verdict: Shelly 1PM Gen4 Smart Relay Switch delivers multi-protocol Matter and Zigbee switching alongside precise power tracking in a compact form factor. It provides comprehensive energy insights for single-circuit appliances without requiring an external hub.
Shelly 1 Gen4 Smart Relay Switch
Best for: Matter integration with low-voltage dry contact switching
- Smart Home Compatibility
- Matter, Alexa, Google Home, SmartThings
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Zigbee, Bluetooth
- Switch Function
- Relay Switch
- Maximum Load
- 16A
- Dimensions
- 0.63 × 1.65 × 1.46 inches
The Shelly 1 Gen4 Smart Relay Switch is a compact in-wall relay engineered for broad smart home interoperability. It supports Matter, Wi-Fi, and Zigbee protocols alongside a 16A switching capacity and potential-free dry contacts. This design suits you if you need to automate standard appliances, lighting, or low-voltage systems like garage doors across ecosystems such as Home Assistant without an external hub.
Pros
- Matter, Wi-Fi, and Zigbee multi-protocol wireless connectivity
- Dry contacts support low-voltage 12V and 24–48V DC controls
- Handles electrical loads up to 16A on a single channel
- Functions as a built-in Bluetooth gateway
Cons
- Lacks integrated power metering hardware
- Single-channel output limits operation to one circuit
- Base package variant is non-UL certified
Good fit if
- You want native Matter and Zigbee integration without buying an external hub.
- You need dry contacts for low-voltage setups like garage door openers.
- You require up to 16A switching capacity for standard home appliances.
Skip if
- You need real-time energy consumption tracking and power metering.
- You want to manage two independent switch channels with one relay unit.
Verdict: Shelly 1 Gen4 Smart Relay Switch pairs multi-protocol Matter support with flexible dry contacts for versatile high-amp or low-voltage switching. It provides an adaptable upgrade path for diverse home automation platforms without requiring an extra hub.
Shelly Plus 1 UL Relay Switch
Best for: SmartThings setups needing dry contacts
- Smart Home Compatibility
- Alexa, SmartThings, Google Home
- Hub Requirement
- No Hub Required
- Connectivity
- Wi-Fi, Bluetooth
- Switch Function
- Relay Switch
- Maximum Load
- 15A
- Dimensions
- 1.65 × 1.46 × 0.63 inches
The Shelly Plus 1 UL Relay Switch is a single-channel smart relay that fits behind existing wall switches or sockets. You get UL certification, support for loads up to 15A, and dry contacts that switch separate voltages. It pairs directly via Wi-Fi and Bluetooth without an external hub, functioning with SmartThings, Alexa, and Google Home. This unit suits you if you want to automate garage doors, irrigation, or standard appliances safely.
Pros
- Potential-free dry contacts support diverse electrical voltages
- UL-certified relay rated for loads up to 15A
- Works as both a Wi-Fi repeater and Bluetooth gateway
- Direct integration with SmartThings, Alexa, and Google Home without a hub
- Includes a 3-year manufacturer device warranty
Cons
- Does not include power consumption metering
- Controls only a single channel or circuit
- Lacks native Zigbee or Matter protocol support
Good fit if
- You need UL-certified dry contacts to operate garage doors, irrigation, or low-voltage circuits.
- You run a SmartThings, Alexa, or Google Home environment and prefer direct Wi-Fi connections.
- You want an in-wall switch that doubles as a Bluetooth gateway and Wi-Fi range extender.
Skip if
- You require real-time power monitoring for your connected load.
- You need to automate two separate circuits from one compact module.
- You want native Matter connectivity for your smart home ecosystem.
Verdict: Shelly Plus 1 UL Relay Switch provides a certified 15A switching solution with flexible dry contacts and direct SmartThings compatibility. It handles non-standard voltages and appliance controls cleanly without requiring an external bridge.
Shelly Plus 1PM Smart Relay 2-Pack
Best for: high-load light and appliance power monitoring
- Smart Home Compatibility
- Alexa, Google Home
- Hub Requirement
- No Hub
- Connectivity
- Wi-Fi, Bluetooth
- Switch Function
- Relay Switch
- Maximum Load
- 16A
- Application
- Lights
The Shelly Plus 1PM 2-Pack is a set of single-channel smart relay switches rated for loads up to 16A. Each unit features built-in power metering, Wi-Fi repeater functionality, and a Bluetooth gateway without requiring a separate hub. You can use it to control high-load appliances or automate light circuits with Alexa and Google Home. It suits you if you need compact in-wall energy monitoring.
Pros
- Handles electric loads up to 16A
- Built-in power metering tracks energy consumption
- Functions as a Wi-Fi repeater and Bluetooth gateway
- Operates without an external hub
- Includes a 3-year device warranty
Cons
- Single-channel control per relay unit
- No listed Matter or Zigbee protocol support
Good fit if
- You need a 16A relay switch with built-in power metering for lights or appliances.
- You want Wi-Fi and Bluetooth connectivity without buying a separate hub.
- You want to extend network range using an integrated Wi-Fi repeater.
Skip if
- You need multi-channel control from a single device.
- You require native Zigbee or Matter network integration.
Verdict: Shelly Plus 1PM 2-Pack Relay Switch delivers reliable single-channel control and detailed energy tracking for loads up to 16A. Its integrated Wi-Fi repeater and Bluetooth gateway make it a versatile pick for lighting and appliance automation.
Shelly 1L No-Neutral Relay Switch
Best for: homes without neutral wiring at switch boxes
- Smart Home Compatibility
- Alexa, Google Home
- Hub Requirement
- No Hub Required
- Wiring Requirement
- No Neutral Required
- Switch Function
- Relay Switch
- Connectivity
- Wi-Fi
- Dimensions
- 0.67 × 1.42 × 1.61 inches
The Shelly 1L No-Neutral Relay Switch lets you automate lights and appliances using existing wiring without running a neutral cable. It fits inside wall switch boxes with its 0.67-inch profile and connects directly to your router over Wi-Fi without an external hub. Supporting 110-230V AC, this relay suits older homes where neutral wiring is absent at switch locations.
Pros
- Operates on live wire only with no neutral required
- Connects directly via Wi-Fi with no external hub needed
- Wide operating voltage range of 110-230V AC
- Compact 0.67-inch depth fits behind standard wall switches
Cons
- Lacks Matter and Zigbee wireless protocol support
- No power metering capability listed
Good fit if
- You have switch boxes lacking neutral wiring.
- You want direct Wi-Fi control without purchasing a dedicated bridge.
- You need a compact switch module measuring under 0.7 inches thick.
Skip if
- You require Matter or Zigbee network integration.
- You need built-in electrical power consumption tracking.
Verdict: Shelly 1L No-Neutral Relay Switch solves switch automation in boxes without a neutral wire by using line power alone. It connects directly over Wi-Fi without needing extra hub hardware.
Shelly 1L No-Neutral Wi-Fi Relay Switch
Best for: switch boxes lacking a neutral wire
- Smart Home Compatibility
- Alexa, Google Home
- Hub Requirement
- No Hub Required
- Wiring Requirement
- No Neutral Required
- Connectivity
- Wi-Fi
- Dimensions
- 1.69 × 1.5 × 0.59 inches
- Weight
- 1.98 ounces
The Shelly 1L No-Neutral Wi-Fi Relay Switch is a retrofit relay designed for electrical boxes that lack a neutral wire. It fits behind your existing wall switch, measuring 1.69 by 1.50 by 0.59 inches. The unit connects directly over Wi-Fi without an external hub and operates on 110 to 230V AC lines. It works with Alexa, Google Home, Android, and iOS to control your lights or appliances without new wall wiring.
Pros
- Operates using only a live wire with no neutral required
- Connects directly via Wi-Fi with no external hub needed
- Wide AC operating voltage range of 110V to 230V
- Compact 0.59-inch depth fits inside standard switch boxes
Cons
- Does not include Matter or Zigbee connectivity
- Lacks power metering capability
- Supports only AC voltage with no DC input listed
Good fit if
- You have older wall switch boxes that lack a neutral wire.
- You want direct Wi-Fi automation without buying an additional hub.
- You need a slim module to fit inside cramped switch boxes.
Skip if
- You need real-time power consumption monitoring.
- You require native Zigbee or Matter network support.
Verdict: Shelly 1L No-Neutral Wi-Fi Relay Switch is a practical retrofit option for controlling lights over Wi-Fi when your switch box lacks a neutral wire. Its slim profile lets you automate 110 to 230V AC fixtures directly through Alexa or Google Home without a separate hub.
Specifications side by side
| Spec | Shelly 1 Mini Gen4 Smart Relay Switch | Shelly 1PM Mini Gen4 Smart Relay Switch | Shelly 2PM Gen4 2-Channel Relay | Shelly 1PM Gen4 Relay Switch with Power Metering | Shelly 1 Gen4 Smart Relay Switch | Shelly Plus 1 UL Relay Switch | Shelly Plus 1PM Smart Relay 2-Pack | Shelly 1L No-Neutral Relay Switch | Shelly 1L No-Neutral Wi-Fi Relay Switch |
|---|---|---|---|---|---|---|---|---|---|
| Smart Home Compatibility | Matter | Matter | Alexa, Google Home, SmartThings, Matter | Alexa, Google Home, SmartThings, Matter | Matter, Alexa, Google Home, SmartThings | Alexa, SmartThings, Google Home | Alexa, Google Home | Alexa, Google Home | Alexa, Google Home |
| Hub Requirement | No Hub Required | No Hub Required | No Hub Required | No Hub Required | No Hub Required | No Hub Required | No Hub | No Hub Required | No Hub Required |
| Connectivity | Wi-Fi, Zigbee | Wi-Fi, Zigbee, Matter | Wi-Fi, Zigbee, Bluetooth | Wi-Fi, Zigbee, Bluetooth | Wi-Fi, Zigbee, Bluetooth | Wi-Fi, Bluetooth | Wi-Fi, Bluetooth | not specified | not specified |
| Wiring Requirement | not specified | not specified | not specified | not specified | not specified | not specified | not specified | No Neutral Required | No Neutral Required |
| Switch Function | not specified | not specified | not specified | not specified | Relay Switch | Relay Switch | Relay Switch | Relay Switch | not specified |
| Maximum Load | 8A | 8A | 16A per channel | not specified | 16A | 15A | 16A | not specified | not specified |
| Application | not specified | not specified | not specified | not specified | not specified | not specified | Lights | not specified | not specified |
| Dimensions | 0.63 × 1.34 × 1.14 inches | 0.63 × 1.34 × 1.14 inches | 0.63 × 1.65 × 1.46 inches | 0.63 × 1.65 × 1.46 inches | 0.63 × 1.65 × 1.46 inches | 1.65 × 1.46 × 0.63 inches | 0.63 × 1.46 × 1.65 inches | 0.67 × 1.42 × 1.61 inches | 1.69 × 1.5 × 0.59 inches |
| Weight | 0.71 ounces | 0.71 ounces | 0.92 ounces | 0.92 ounces | 0.92 ounces | 0.96 ounces | 0.95 ounces | 1.41 ounces | 1.98 ounces |
| Color | blue | not specified | Black | Red | not specified | Blue | Red | not specified | not specified |
| Model | 3800238070786 | 3800238070809 | 3800238070748 | 3800238070717 | 3800238070687 | 3800235265529 | 3800235265017 | SHELLY 1L | 3800235262450 |
| Size | not specified | not specified | Non UL | Non UL | Non UL | 1 Pack | 2 Pack | not specified | not specified |
Comparing the Shelly Relay Lineup
Shelly relays divide primarily by wireless connectivity and wiring requirements. If your installation uses local mesh systems, Gen4 models provide Zigbee or Matter communication. The Shelly 1 Mini Gen4 Smart Relay Switch offers dry-contact switching in compact spaces, while the Shelly 2PM Gen4 2-Channel Relay handles dual circuits with power monitoring. This group suits you if your electrical boxes contain neutral wires.
If your switch boxes lack neutral conductors, the Shelly 1L No-Neutral Relay Switch operates over Wi-Fi without requiring a neutral wire. For platform integration across SmartThings, Alexa, and Google Home, the Shelly Plus 1 UL Relay Switch supplies Bluetooth connectivity. These units fit homes using standard Wi-Fi or Bluetooth rather than specialized Zigbee coordinators.
Matching Shelly Relays to Your Setup
Shelly focuses on compact, rectangular in-wall relay modules. Dimensions span from the Mini series at 1.34 by 1.14 by 0.63 inches up to standard units measuring 1.69 by 1.50 by 0.59 inches. Switching capabilities cover single-circuit relays, dual-channel controls, dry-contact setups, and no-neutral lighting retrofits. The range leaves several gaps. You will not find built-in wall plates, physical paddle switches, or dimming controls in this lineup. Output options max out at two channels, meaning you cannot automate three or more circuits with one device. Every model requires installation behind an existing junction box plate.
How to Choose the Right Shelly Switch
-
Check In-Wall Neutral Wiring
Check the wires inside your junction box before buying. Standard smart switches require a neutral wire to power internal radios. If your junction box only carries line and load wires, you must choose a switch rated for no-neutral operation. The Shelly 1L No-Neutral Relay Switch operates on line power alone over Wi-Fi without requiring an external hub or extra conductors. Selecting the right wiring specification prevents installation failures in older wiring setups.
-
Verify Electrical Code Certification
Examine the safety certification listings for your switch installation. Building codes or municipal regulations often require certified electrical hardware behind wall plates. Shelly marks standard units as Non UL, while specific models carry full laboratory certification for permanent residential wiring. The Shelly Plus 1 UL Relay Switch provides a certified 15A switching solution with dry contacts. If your inspection requires approved hardware, look strictly for models with explicit UL markings rather than standard uncertified variants.
-
Determine Power Monitoring Requirements
Identify whether you need to track energy consumption on the target line. Shelly designates metering models with PM in the name. Standard relays toggle power states, whereas PM models measure real-time wattage and track cumulative electrical usage. The Shelly 1PM Gen4 Relay Switch with Power Metering delivers precise power tracking alongside single-circuit automation. If you monitor appliances to identify draw or track consumption, pick a PM model. If you only switch standard lights, non-metered relays suffice.
-
Evaluate Dry Contact Needs
Check the voltage requirements of your target load before selecting a relay. Standard relays pass mains line voltage directly to the load terminal. In contrast, dry-contact relays isolate the switching circuit completely from the relay power supply, allowing low-voltage triggers or isolated contact closures. The Shelly 1 Mini Gen4 Smart Relay Switch provides dry-contact switching with an 8A load capacity in an ultra-compact body. Choose dry contacts when automating garage door buttons, gate controllers, or circuits with independent power feeds.
-
Match Circuit and Motor Requirements
Review the number of lines and appliance mechanics you intend to control. Single-channel relays switch one isolated circuit, while dual-channel units handle two independent lines from one enclosure. Furthermore, specialized firmware in two-channel models allows interlocked control for motorized equipment. The Shelly 2PM Gen4 2-Channel Relay provides dual-circuit switching, individual power monitoring, and motorized shutter control in a single unit. Select a two-channel relay if you need coordinated directional control for window coverings or wish to automate two adjacent switches together.
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Select Supported Smart Home Protocols
Compare the communication protocol specifications with your current smart home infrastructure. Shelly devices use Wi-Fi, Bluetooth, Zigbee, or Matter depending on the generation and model series. The Shelly Plus 1PM Smart Relay 2-Pack features Bluetooth connectivity alongside direct integration with Alexa and Google Home without requiring a separate hub. If you prefer keeping local devices off your main Wi-Fi band, prioritize models featuring Zigbee or Matter communication. Verify your hub or controller ecosystem before purchasing to ensure seamless protocol compatibility.
Frequently asked questions
Which Shelly smart switch is best for tight junction boxes?
The Shelly 1 Mini Gen4 Smart Relay Switch is the top choice for confined spaces. It measures just 1.34 by 1.14 by 0.63 inches. This compact footprint allows installation in small enclosures where standard switches will not fit. It also supports Zigbee connectivity for reliable mesh networking without requiring extra hub hardware.
Does Shelly offer smart switches that do not require a neutral wire?
Yes, the Shelly 1L models are designed for installations without a neutral wire. These units connect directly over Wi-Fi using line power alone. This makes them ideal for retrofitting older switch boxes that only contain line and load wires. They work directly with Alexa and Google Home platforms.
Can I monitor energy usage with Shelly smart switches?
Several Shelly models include built-in power metering for real-time energy tracking. The Shelly 1PM Mini Gen4 and Shelly 1PM Gen4 provide precise power insights for single circuits. The Shelly 2PM Gen4 extends this capability to dual circuits. These units help you monitor appliance consumption directly through your smart home app.
Which Shelly switch supports Matter protocol?
The Shelly 1 Gen4 Smart Relay Switch features native Matter support. It also offers flexible dry contacts for versatile high-amp or low-voltage switching. This model integrates seamlessly with diverse home automation platforms. You can control it without requiring an external bridge or hub, ensuring broad compatibility with modern smart home ecosystems.
Are there Shelly switches compatible with SmartThings?
The Shelly Plus 1 UL Relay Switch provides direct compatibility with SmartThings. It offers a certified 15A switching solution with flexible dry contacts. This unit handles non-standard voltages and appliance controls cleanly. It connects via Bluetooth and does not require an external bridge, making it a practical choice for SmartThings setups.
What is the maximum load capacity for Shelly relays?
Most Shelly Plus models handle high loads up to 16A. The Shelly Plus 1PM Relay Switch supports loads up to 16A for lighting and appliances. The Shelly Plus 1 UL Relay Switch is certified for 15A switching. These capacities cover most standard household fixtures and small motors without needing external contactors.
Does the Shelly 2PM Gen4 control two circuits?
Yes, the Shelly 2PM Gen4 2-Channel Relay manages dual circuits. It provides individual power monitoring for each channel. This unit is suitable for motorized window coverings or separate lighting zones. It supports Matter, Zigbee, and Wi-Fi networks, allowing flexible integration across different smart home systems without an external hub.