notice Note: Please be cautious and check with your supplier if this product is for virus protection purposes and if the coronavirus (COVID-19) will affect your order. close

4 Gang Network Relay Control Smart Home Automation Diy Switch Module Remote Controller Security Alarm Domotica Ethernet RS232

  • 1-9 Sets
  • 10-49 Sets
  • 50-99 Sets
  • >=100 Sets
- + Sets available
0piecesselected, US $in total
View Details
Shipping fee:
Depends on the order quantity.
Lead Time:
5 day(s) after payment received
Customized logo (Min. Order: 100 Sets)
Customized packaging (Min. Order: 500 Sets)


Graphic customization (Min. Order: 100 Sets) Less
Contact Supplier
Report Suspicious Activity
Quick Details
Place of Origin:
Zhejiang, China
Brand Name:
Model Number:
Electromagnetic Relay
Protect Feature:
Contact Load:
High Power
Security Channels:
Relay Control Channels:
Communication Port:
Max Current:
Network Control Mode:
LAN (Local:Withour Internet) OR WAN
Supporting Programmable Control Mode:
Provide Control Sample Source Code:
C++, VB, Delphi, Python, iOS, Android
Technical Support Mode:
Email, Telephone,Teamview
Provide Communication Protocol Documents:
Product Video Instructions:

Packaging & Delivery

Selling Units:
Single item
Single package size: 
34X16X7 cm
Single gross weight:
1.000 kg
Package Type:
Standard Packaging
Lead Time :
Quantity(Sets) 1 - 50 >50
Est. Time(days) 5 To be negotiated
Video Description

4 channel relay controller (Ethernet) Users manual



Products Parameter:

Dimension:      108x117x40mm

Working Voltage: DC 12V

Material:Fire resistance ABS、metal shell

Working Temp: -20℃~70℃

Working Humidity: 20%RH ~ 80%RH

Output Load:each 250V/10A

Communication mode:Ethernet/RS232

Input port qty:4 ports

Output port qty:4 ports


The following information introduces KC868-H8 controller. KC868-H4, KC868-H2, KC868-H8, KC868-H32 controller are KC868 series of KinCony's products, so phone APP and PC software are compatible. There are only different input and output channel.

Brand New Packaging:

Products Function:

1. Supporting RS232 and Ethernet communication mode

2. Remote controlling the opening/closing of 8 routes or 8 groups’ circuits.

3. Supporting 8 ports input of sensor switching value.

4. Supporting secondary development

5. Supporting APP remote controlling

6. Widely used for lights controlling of kinds of occasion (like Indoor, theater or Amusement Park etc) and switching of mechanical equipments, and management of the computers in the cyber bar and so on.


Products Features:

1. Highly reliable connection column, independent and isolated route,Make sure the products more stable and safe.

2. each route is equal an independent switch.


3. Adopting ARM core chip as the core processor, industrial stability and good anti-jamming.

4. Professional shell design, fixed through the positioning hole, or fixed on the guide rail directly.

5. Perfect power input filter, ensuring adequate capacitance.

6. Adopting advanced and stable communication protocol, providing reliable and smooth communication procedures. 

7. Providing the upgrade tool, the products can be upgraded by the users; Or can be upgraded by the device supplier through the network.

8. Providing 1 year technical maintenance and free new edition host computer software


Products Usage Instructions

Wiring and Installation

1. Connecting network line or RS232 serial port


2. Connecting the lamp and power with relays output COM and NO port.

3. When need to control one group or groups lights, connecting the line into the corresponding output poles.

4. Connecting the 12V power adapter to charge.

5. When the detection sensors are available, connecting them into the input port.

KC868-H4 Interface Definition Diagram


Intelligent Power Distribution Box Solution


The newest Andorid Software , Download form our webpage(not in Google Play):

This is PC software for KC868-H8, It can control by LAN (local control) or WAN (remote control)



new software support CCTV (only use for KinCony's ipcamera product). When you see the video control the relay switch.


This is config manu, The title and copyright and all relays' name can be changed by yourself.

If you connect with "KC868 Voice Assistant" module, controller can control voice control by Amazon Alexa or Google Home Speaker or Amazon Alexa or Google Home phone APP.

Software Operation

1. Opening the network debugging tool to detect the IP address and port of the device (see below figure)

2. Clicking【Device】, see below figure


3. Double clicking 【the Name】, set up the network parameter of the device


4. Choosing the working mode, TCP is for local area network setting or secondary development; UDP is for APP controlling.

Secondary Development Communication Protocol

1. Relay Controlling(SET):


 RETURN: RELAY-SET-x(1bytepack_num),x(1byterelayserialnumber),x(1byteaction0/1),



 2. Relay Status(READ):


RETURN: RELAY-READ-x(1bytepack_num),x(1byterelayserialnumber),x(1bytestatus0/1),OK/ERROR

3. Input Status(GET_INPUT):


RETURN: RELAY-GET_INPUT-x(1bytepack_num),x(1bytestatus),OK/ERROR


4. Trigger Alarm(ALARM):



Re: Without receiving the RETURN, ALARM will be re-triggered every 3 seconds, totally re-triggered 3 times.


5. Scanning(SCAN_DEVICE):




6. Serial Number acquisition(HOST):

RELAY-HOST-NOW(under TCP working mode)

RETURN: HOST-CHKLIC-97813679bd8cc4c42ddb6c27(return host serial number)


7. Relay Groups Controlling(SET_ALL):


RETURN: RELAY-SET_ALL-x(1bytepack_num),D0,OK/ERROR


8. Relay Groups Status(STATE):


RETURN: RELAY-STATE-x(1bytepack_num),D0,OK/ERROR


9. Status Testing(TEST):



Re: under this status, the pack_num isn’t working.


Secondary Development Program Toolkit

We supply complete source program Toolkit of VS2005(Microsoft Visual Studio 2005) , and we give the controlling examples through RS232 serial port and Ethernet socket, to help customers carrying on the secondary development.

The PC software can control the relay switch, and also show the input state.

Details showed from below screenshots.

We can supply the DEMO code of C++Builder, Delphi, VB.Net, Python , Andorid and iOS versoins.

This is a Hello World hareware verion of Demo code.

Follows are our demo video on youtube can help you(The video is KC868-H32 for 32 relays. Because of  KC868-H8 and KC868-H32 using the same communication protocol, so you can refer to the videos below. KC868-H8 have 8 relays, KC868-H32 have 32 relays):

KC868-H32 Control in LAN by PC demo video:

KC868-H32 Remote Control by APP video:

Manual Control Board work with KC868-H32 video:

How to use web browser send http string control relay video:



KC868-H8 control Building model by PC

KC868-H8 control Building model by APP

How to DIY Smart Power Distribution by KC868-H8:

How to Produce KC868-H32's PCB:

Following is the introduction and solutions of KC868-H8/KC868-H32 controller which we plan to introduce in January-December 2019 on "Radio Magazine" in China. There are only Chinese language,but some of them will be translated into English language. You can visit our website for viewing.We will continue to update.

This is a sample code for Turn ON/Off 's Hello World demo.

This is anlysis KC868-H32&KC868-H8 Controller's communication protocol

how to remote control relay by http string

This is smart lighting control system implementation case

We also writed some kinds of Smart Home DIY books to help people learn IOT knowledge.

More documents,APP&PC software and tools for download :

Videos List on YouTube:

KC868-H32 Remote Control by phone APP via ethernet WAN                               
KC868-H32 Local Control by VB PC software via LAN                                           
KC868-H32 Remote Control by web browser send http string via ethernet WAN   
KC868-H32 Remote Control by PC software via ethernet WAN                             
KC868-H8 Remote Control Building model by phone APP via ethernet WAN        
KC868-H8 Remote Control Building model by PC via ethernet WAN                     
KC868-H32 Remote Control Building model by PC via ethernet WAN                   
KC868-H8/H32 Local control by manual keyboard or wire switch panel or remoter
How to DIY Smart Power Distribution by KC868-H8                                               
Smart Power Switch Distribution Box phone APP control demo                             
Home security CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector work with KC868-H8
Home security Door & Window Sensor Alarm Detector work with KC868-H8                              
Home security Pir Sensor Alarm Detector work with KC868-H8                                                   
Home security Water leak sensor Alarm Detector work with KC868-H8                                       
Home security light sensor Alarm Detector work with KC868-H8                                                 
Home security smoke sensor Alarm Detector work with KC868-H8                                             
Home security Power Failure Monitor Sensor Alarm Detector work with KC868-H8                    
DIY Home security Water level sensor Alarm Detector Monitor work with KC868-H8                  
KinCony wall touch switch of ZigBee wireless smart home solution                                             
KinCony wall touch dimmer of ZigBee wireless smart home solution                                           
How 2-3 Zigbee Light Switch Panels control one light                                                                  
How to Produce KC868-H32's PCB                                                                                              
PDF Documents List on webpage:

 0-KC868-H8&H32 Overall operation manual.pdf


 1-KC868-H8&H32 UDP&TCP mode setting(Vircom tool).pdf


 2-KC868-H8&H32 APP User Manual.pdf


 3-KC868-H8&H32 relay User manual(Demo tool).pdf


 4-KC868-H8 Product Parameter and Installation.pdf


 5-KC868-H32 Product Parameter and Installation.pdf


 6-KC868-H8 Comminucation Protocol for Secondary development.pdf


 7-KC868-H8 NetRelay Control User manual(Demo tool).pdf


 8-KC868-H32EXE User manual.pdf


 9-KC Demo-AccountControl User manual.pdf


















Software Tools List on webpage:


VirCom4.88_en (WAN and LAN config tool)


Relay.rar (KC868-H8/KC868-H32 LAN Control DEMO EXE)


Net_Relay_Control (KC868-H8 Local & Remote Control Demo ExE )


KC868-H32_EXE.rar (EThernet_remote_control_demo)


KC-Demo_account_control.rar (KC868-G,KC868-S,KC868-H8,KC868-H32 Remote Control By App Account)


Demo Sample Source Code List on webpage:


KC868-H8_H32_LAN_local_control_demo_source_code_VB2005.rar (relay.rar's source code)


KC868-H32_EThernet_remote_control_demo_source_code_BCB10.2.3.rar (C++Builder 10.2.3)


KC-Demo_Remote_Control_By_App_Account_demo_source_code_VB2017.rar (KC-Demo's source code)


KC868-H8-relay-control-hello-world-demo-source-code-delphi.rar (Delphi 10.2.3)


KC868-H8-relay-control-hello-world-demo-source-code-python.rar (PyCharm IDE 2018)


KC868-H8-relay-control-hello-world-demo-sample-source-code-android.rar (Android Studio3.2)


KC868-H8-relay-control-hello-world-demo-sample-source-code-ios (Xcode)


Controllers Specification Parameters









Relay Control

Wired Sensor










Embedded IR







Cloud Storage

Self Program

Sample Code

Technical Support









ZigBee Device







ZigBee Amplifier







KC868-G/KC868-S/KC868-H8/KC868-H32 Mobile Phone APP download :



The following are FCC and RoHS certificates



A. Before Sale Service

Q1. How many applications can the device KC868-H8 control?

Answer: 8 ways applications


Q2. How many inputs are there in the device KC868-H8?

Answer: 8-way input


Q3. How many inputs are there in the device KC868-H8?

Answer: You can chose KC868-H32 for 32 gang . Or you can add 2pcs kc868-h8 in app. Then you can control 16 relays. Also if you add 3pcs of kc868-h8, then you can control 24 relays.and so on. All controllers will be add in one app account , not need to change app account to login and control device.


Q4.what is the maximum load per channel for the device kc868-h8?

Answer: 250V/10A each channel


Q5.What if the load power is greater than the rated power?

Answer: if it is overloaded, the external high power AC relay can be connected to crease the total load power


Q6.What type of equipment can be connected to the input of the kc868-h8 control box?

Answer: the equipments with switching value signal output


Q7.What is the size of the kc868-h8 control box? What are the fixed installation methods?

Answer: 145x117x40mm; to fix by hanging on the rail directly or to fix by screw


Q8.What is the interfaces the kc868-h8 control box supports?

Answer: support RS232 and Ethernet interface


Q9. Is there the version of Wi-Fi?

Answer: Yes. It’s the KC868-H8W.


Q10. What are the network control methods for KC868-H8 control boxes?

Answer: Mobile phone APP remote control, PC local or remote control


Q11.What kind of software and user manuals can be provided?

Answer: Network configuration tool, Demo software, Or Instructions and Secondary development protocol etc. For more details, pls visit to download

              Local Control: PC software; Control by yourself(use controller communication protocol)
              Remote Control: PC software;Mobile APP; Control by yourself(Mode A: http www web command  Mode B:coding by yourself according your app account to login)

Q12. When there is no internet, how to remote control the device KC868-H8?

Answer: under local network, using the PC to achieve local remote control; or using the wireless internet router to provide wired network or Wi-Fi signals to achieve controlling.


Q13. Where the mobile phone APP software can be easily downloaded from?

Answer: For IOS, log in to Apple app store, searches 【Kincony smart home】 to download;  for Android, log in Google app store, searches【Kincony smart home】 to download or visit the official website to scan the QR for downloading


B. Development By Yourself

Q1. Is it supporting the users to write their own programs to control the device?

Answer: Yes, supporting. And the related program example is avialble.


Q2. Is it supporting to control the device through a browser?

Answer: Yes, supporting. And one relevant case can be provided.


Q3. What are the ways to remote control the device when the users program themselves?

Answer: the PC software, the browser for controlling.


Q4. Is it provided the source code of the secondary development package example?

Answer: Yes, providing the detail information.


C. After sale service

Q1. Where to download the relevant information after purchasing?

Answer: KinCony's website


Q2. How to get technical support download?

Answer:  email supporting

And Skype: leo-zhang2008


Q3. Where can the product or software update information be available?

Answer: from the English website 


Q4. Is it supporting OEM or ODM customization service?

    Answer: Yes, OEM and ODM service supporting

You May Like
Not exactly what you want? 1 request, multiple quotations Get Quotations Now >>