1. Introducció
This manual provides detailed instructions for installing, setting up, and operating your meross 3 Way Smart Dimmer Switch Kit. This kit includes both a main and a secondary switch, designed for controlling lights from two different locations. The smart dimmer switches offer dimming capabilities from 1% to 100% and are compatible with various smart home platforms.

Image: Meross Smart 3 Way Dimmer Switch Kit highlighting key features.
2. Informació de seguretat
WARNING: This is an electrical shock hazard. Follow installation instructions carefully. Ensure power is turned off before electrical work.
- Cable neutre necessari: The Smart Dimmer Switch Kit requires a neutral wire (typically white) in your electrical box for proper operation. If you are unsure, consult a qualified electrician.
- 3-Way Application Only: This kit is designed exclusively for 3-way installations. The main switch cannot function with other standard 3-way switches.
- Compatibilitat Wi-Fi: The device operates on 2.4GHz Wi-Fi networks only. It does NOT support 5GHz Wi-Fi.
- Compatibilitat amb bombetes: Max 400W for Incandescent (INC) bulbs, max 150W for CFL and LED bulbs. Not compatible with smart bulbs.
- Seguretat contra incendis: Features fire-retardant housing with a UL94-V0 fire rating.

Image: Key compatibility and installation requirements for the smart dimmer switch.
3. Contingut del paquet
Your meross 3 Way Smart Dimmer Switch Kit typically includes the following items:
- 1 x Main Smart Dimmer Switch
- 1 x Secondary Smart Dimmer Switch (Add-on Switch)
- 2 x Wall Plates (Screwless design)
- Filferro
- Cargols de muntatge
- Wire Labels (Neutral, Lin, Lout, Ground)
- 1 x Guia d'instal·lació ràpida
4. Producte acabatview
The meross Smart Dimmer Switch Kit provides intelligent control over your lighting. It features physical buttons for manual operation and integrates seamlessly with popular smart home ecosystems for voice and app control. The switches are designed for a clean, modern look with screwless faceplates.

Imatge: Frontal view of the meross Smart Dimmer Switch.
Característiques principals:
- Control d'atenuació: Adjust light brightness from 1% to 100%.
- Multi-Compatible: Works with LED, CFL, and Incandescent (INC) bulbs.
- Funcionalitat bidireccional: Control lights from two distinct locations.
- Integració de la llar intel·ligent: Compatible with Apple HomeKit, Amazon Alexa, Google Assistant, and SmartThings.
- Control de veu: Use voice commands with Siri, Alexa, or Google Assistant.
- Comandament a distància: Manage lights from anywhere via the Meross app.
- Programació: Set custom schedules, timers, and sunrise/sunset routines.
- Connectivitat Wi-Fi: Connects directly to your 2.4GHz Wi-Fi network; no additional hub required.

Image: Dimmable and multi-compatible features of the smart switch.
5. Instal·lació
Before beginning installation, ensure you have read and understood all safety warnings. If you are not comfortable with electrical wiring, please consult a qualified electrician.
Llista de verificació prèvia a la instal·lació:
- Verify Neutral Wire: Confirm your electrical box has a neutral wire (usually white). This is mandatory for the meross smart dimmer switch.
- Apagar: ALWAYS turn off power at the circuit breaker before starting any electrical work.
- Eines: Gather necessary tools such as a screwdriver, wire strippers, and voltage provador.
Wiring Instructions (3-Way Application):
The meross 3 Way Smart Dimmer Kit consists of a Master Switch and an Add-on Switch. Follow the wiring diagram provided in your Quick Installation Guide and below. Use the included wire nuts and labels for clear and secure connections.

Image: Detailed wiring diagram for the smart dimmer switch, highlighting the neutral wire connection.

Image: 3-Way wiring diagram for Master and Add-on Switches.
- Identify and label your wires: Live (Line), Load, Neutral, and Ground.
- Connect the wires from the meross switches to your home's wiring according to the diagram.
- Secure the switches into the electrical box using the provided screws.
- Attach the screwless faceplates for a clean finish.
- Resta l'alimentació al disjuntor.
6. Setup (App Configuration)
Once the switches are physically installed, you can configure them using the meross app and integrate them with your preferred smart home system.
Initial Setup with Meross App:
- Download the meross app from the App Store or Google Play.
- Create a meross account or log in.
- Follow the in-app instructions to add your new smart dimmer switches. Ensure your smartphone is connected to a 2.4GHz Wi-Fi network during this process.
HomeKit Remote Control Setup:
To enable remote control for HomeKit, you need a HomeKit hub device:
- A HomePod, HomePod mini, Apple TV 4K, or Apple TV HD.
- Set up one of these Apple devices as a HomeKit bridge and connect it to your home Wi-Fi network.
- The HomeKit bridge must remain online and connected to Wi-Fi for remote control functionality.

Image: Setting up HomeKit remote control with Apple devices. For more information, visit Suport d'Apple.
7. Funcionament
Your meross Smart Dimmer Switches offer multiple ways to control your lighting.
Control manual:
Press the physical buttons on the switch to turn lights on/off or adjust brightness. The top button typically increases brightness, and the bottom button decreases it.
Control de veu:
Integrate your switches with Apple HomeKit, Amazon Alexa, or Google Assistant for hands-free control.
- Siri: "Hey Siri, turn on the living room light."
- Alexa: "Alexa, dim the bedroom light to 50%."
- Assistent de Google: "Ei Google, apaga el llum de la cuina."

Image: Voice control in action with smart assistants.
Comandament a distància:
Control your lights from anywhere using the meross app on your smartphone or the Apple Home app (if HomeKit is configured with a hub).

Image: Remote control of lights via the Meross app.
Scheduling and Scenes:
Set up custom schedules, timers, and scenes to automate your lighting based on your daily routine or preferences. Schedules can operate even if your internet connection is temporarily down.
- Temporitzadors: Set lights to turn on/off after a specific duration.
- Horaris: Program lights to activate or deactivate at set times.
- Sortida / posta de sol: Automate lights to follow natural light cycles.

Image: Scene and schedule features for automated lighting control.
8. Manteniment
To ensure optimal performance and longevity of your meross Smart Dimmer Switches, follow these simple maintenance guidelines:
- Neteja: Gently wipe the switch and faceplate with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Comprovació de la connexió: Periodically ensure all wiring connections are secure and free from damage.
- Actualitzacions de firmware: Keep your meross app and switch firmware updated to benefit from the latest features and security enhancements.
9. Solució De Problemes
If you encounter issues with your meross Smart Dimmer Switch, refer to the following common troubleshooting steps:
- Sense alimentació/No respon:
- Assegureu-vos que hi hagi corrent a l'interruptor.
- Check all wiring connections for tightness and correctness, especially the neutral wire.
- Locate the small power reboot button (if present) on the switch and press it once to perform a soft reboot.
- Problemes de connectivitat Wi-Fi:
- Confirm your Wi-Fi network is 2.4GHz. The switch does not support 5GHz.
- Ensure your Wi-Fi router is within range and functioning correctly.
- Restart your Wi-Fi router and try connecting again.
- If the indicator light is red, it may signal a connectivity problem.
- HomeKit Remote Control Not Working:
- Verify your HomeKit hub (HomePod, Apple TV) is online and connected to your home Wi-Fi network.
- Ensure the HomeKit hub is powered on and not disconnected from Wi-Fi.
- Problemes d'atenuació:
- Confirm your bulbs are dimmable and compatible with the switch (LED, CFL, INC). Smart bulbs are not supported.
- Comproveu l'aigua totaltage of connected bulbs does not exceed the switch's maximum capacity (400W for INC, 150W for CFL/LED).
10. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | MSS570 |
| Mode d'operació | ON-OFF-ON |
| Valoració actual | 4 Amps |
| Vol. Operatiutage | 120 Volts |
| Tipus de contacte | Normalment obert |
| Tipus de connector | Clamp |
| Terminal | Spdt |
| Dimensions (L x A x A) | 4.7 x 2.8 x 1.5 polzades |
| Tipus de circuit | 3 vies |
| Tipus d'actuador | Interruptor de regulació |
| Material de contacte | coure |
| Classificació de protecció internacional | IP00 |
| Interval de temperatura | 32 to 104 Degrees Fahrenheit |
| Tipus de controlador | Amazon Alexa, Apple HomeKit, Assistent de Google |
| Mètode de control | veu |
| Protocol de connectivitat | Wi-Fi (només 2.4 GHz) |
| Color | Blanc |
| Wattage | 480 watts |
| Pes de l'article | 9.8 unces |
11. Garantia i Suport
For detailed warranty information, technical support, and frequently asked questions, please visit the official meross weblloc web o contacteu directament amb el servei d'atenció al client. Conserveu el rebut de compra per a reclamacions de garantia.