SONOFF 4CH/4CHPRO User Manual V1.3
This document provides a comprehensive user manual for the SONOFF 4CH and 4CHPRO smart switches.
Product Overview
The SONOFF 4CH and 4CHPRO are 4-gang Wi-Fi smart switches. The 4CHPROR3 also includes RF control capabilities, allowing for local short-range wireless control independent of Wi-Fi.
Models: 4CHR3, 4CHPROR3
Safety Precautions
Important: Electrical installation and maintenance should only be performed by a qualified electrician. Never operate wiring or touch terminals while the device is powered on to avoid electric shock.
For electrical safety, it is essential to install a Miniature Circuit Breaker (MCB) or Residual Current Operated Circuit Breaker (RCBO) with the appropriate current rating (16A for 4CHR3, 40A for 4CHPROR3) before the smart switch.
Safety Instructions:
- This product is not a toy and is intended for adult use only.
- Maximum ambient temperature during use should not exceed 40°C.
- The appliance is suitable for moderate climates only.
- Ensure proper ventilation; do not cover the appliance with items that obstruct airflow.
- Keep naked flame sources away from the appliance.
Wiring Instructions
Power Off: Always turn off the power before performing any wiring.
Light Fixture Wiring:
For 4CHR3 (AC Input):
Connect the main power (L and N) to the 'L In' and 'N In' terminals respectively. Connect the loads to the 'L1 Out', 'L2 Out', 'L3 Out', and 'L4 Out' terminals, and their respective neutral wires to the 'N' terminal.
For 4CHPROR3 (AC Input):
Similar to the 4CHR3, connect main power to 'L In' and 'N In'. Connect loads to the output terminals and their neutral wires to the 'N' terminal. The 4CHPROR3 also has an RF input and DC input option.
For 4CHPROR3 (DC Input):
Connect the DC power source (9-23V DC) to the designated DC input terminals.
Socket Wiring: (Ground wire connection is optional if not available)
Follow the diagrams provided for connecting sockets, ensuring correct wiring for live (L), neutral (N), and ground (G) connections.
Equipment Installation
The devices support 35mm rail installation. Mount the device securely on the rail.
Adding the Device (eWeLink App)
1. Download the eWeLink app from Google Play or the App Store.
2. Power on the device. It will enter quick pairing mode by default (Wi-Fi indicator: two short, one long flash).
3. Open the eWeLink app, tap '+' and select 'Add Device'. Follow the app prompts.
Compatible Pairing Mode: If quick pairing fails, use the compatible pairing mode:
- Long press any pairing button for 5s until the Wi-Fi indicator shows two short, one long flashes. Release.
- Long press the same button again for 5s until the Wi-Fi indicator flashes quickly. The device is now in compatible pairing mode.
- In the app, tap '+' > 'Add Device' > 'Compatible Mode'.
- Connect your mobile device to the Wi-Fi SSID 'ITEAD-******' with password '12345678'.
- Return to the eWeLink app and tap 'Next' to complete pairing.
Wi-Fi LED Indicator Status
| Indicator Status | Status Description |
|---|---|
| Flashes (one long and two short) | Quick Pairing Mode |
| Keeps on | Device is connected successfully |
| Flashes quickly | Compatible Pairing Mode |
| Flashes quickly once | Unable to discover the router |
| Flashes quickly twice | Connect to the router but fail to connect to Wi-Fi |
| Flashes quickly three times | Upgrading |
Product Features
- Remote Control: Turn devices on/off remotely via smartphone.
- Smart Timing/Countdown: Schedule on/off times.
- Voice Control: Integrate with voice assistants (not detailed in manual).
- Share Control: Share device access with family members.
- Smart Scene: Create automated scenes.
- Self-locking Mode: Standard on/off operation.
- Interlock Mode: One channel on, others off.
- Inching Mode: Temporary on/off for a set duration.
- 433MHz Remote Control (4CHPROR3 only): Local control via RF remote.
- Power-on State: Configure device state upon power restoration.
- Camera Linking: Integrate with cameras (not detailed).
- LAN Control: Control devices locally without internet.
Pairing and Clearing with RF Remote Controller (4CHPROR3)
Pairing Method:
- Long press the channel switch button for 3s until the Wi-Fi LED indicator turns red and flashes quickly once. Release.
- Short press the button on the remote control to be paired.
- A successful pairing is indicated by the Wi-Fi LED flashing quickly once.
Clearing Method:
- Long press the channel switch button for 5s until the Wi-Fi LED indicator turns red and flashes quickly twice. Release.
- Short press the button on the remote control to be cleared.
- A cleared code is indicated by the Wi-Fi LED flashing quickly once.
Switch Network
To change the network, long press any pairing button for 5s until the Wi-Fi LED indicator shows two short and one long flash. The device will enter quick pairing mode.
Factory Reset
Delete the device from the eWeLink app to restore it to factory settings.
Common Problems
Q: Device stays "Offline"?
A: Allow 1-2 minutes for the device to connect. If it remains offline, check the Wi-Fi indicator status:
- Blue Wi-Fi indicator flashes quickly once per second: Failed to connect to Wi-Fi. Check password, distance to router, interference, or ensure 2.4GHz network is used. MAC address filtering might be enabled on the router; disable it if necessary. As a last resort, create a mobile hotspot and try adding the device again.
- Blue indicator flashes twice per second: Connected to Wi-Fi but not to the server. Ensure a stable network connection. Frequent double flashes may indicate an unstable network. If the network is stable, try power cycling the switch.
Specifications
| Specification | Details |
|---|---|
| Model | 4CHR3, 4CHPROR3 |
| Input | 4CHR3: 100-240V~ 50/60Hz 4CHPROR3: 100-240V~ 50/60Hz (DC: 9-23V===) |
| Max. Load | 4CHR3: 10A/Gang, 16A Total 4CHPROR3: 10A/Gang, 40A Total |
| RF | 433.92MHz (Receive only) |
| Wi-Fi | IEEE 802.11 b/g/n 2.4GHz |
| Operating systems | Android & iOS |
| Working temperature | -10°C~40°C |
| Material | PC VO |
| Dimension | 145x90x34mm |
Note: 4CHR3 does not support the 433.92MHz remote controller.
Product Introduction Diagrams
Diagrams illustrating the layout of the 4CHR3 and 4CHPROR3, indicating pairing buttons, manual switches, and LED indicators.
4CHR3: L1/L2/L3/L4 are pairing buttons/manual switches and also On/Off LED indicators (Red). Wi-Fi LED indicator is Blue.
4CHPROR3: R1/R2/R3/R4 are pairing buttons/manual switches and also On/Off LED indicators (Red). Wi-Fi LED indicator is Blue. Includes DC input and AC input terminals.
Regulatory Information
FCC Compliance Statement: This device complies with Part 15 of the FCC Rules. Operation is subject to conditions that it does not cause harmful interference and accepts any received interference.
FCC Radiation Exposure Statement: Complies with FCC limits for uncontrolled environments. Maintain at least 20 cm separation between the radiator and body.
ISED Notice (Canada): Complies with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Class B digital apparatus compliant with NMB-003(B) and RSS-247.
ISED Radiation Exposure Statement: Complies with ISED limits for uncontrolled environments. Maintain at least 20 cm separation between the radiator and body.
EU Declaration of Conformity: Shenzhen Sonoff Technologies Co., Ltd. declares compliance with Directive 2014/53/EU. Full text available at: https://sonoff.tech/compliance/
WEEE Disposal and Recycling Information: Dispose of waste electrical and electronic equipment responsibly at designated collection points.
Product Composition (Harmful Substances)
This section details the presence of harmful substances in the product components according to standard GB/T 15092.102. Most components contain minimal levels of lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE, meeting regulatory requirements.
