Introduction to AM-RB04-B (Relay power supply board)

- Relay boards can be used to supply or block power to various home appliances, lighting equipments or other drive boards.
- 4 devices can be driven and for each point of contact a maximum of AC 250V, DC 30V can be used and the maximum current is 5A.
- External AC 220V or DC power or internal 12V, 5V power supply can be used.
- Built-in fuses implemented in the board to automatically block flow of over current.
- If large numbers of relays are used, they work instable manner by using PCB pattern.

Relay power supply board     AM-RB04-B

AM-RB04-B (Relay power supply board) Usage

*Connecting the Hardware

- Control Input Signal

If 1 is applied to any channel's control input, the relay starts operating and
power is supplied to that channel. Power is blocked to for the said channel if
0 is applied to the Control input.

* Drive power for Relay power supply board
Drive power is required to drive the Relay boards. Power must be supplied using adapter connector, power supply connector or by connecting jumper.

* Power supply to point of Contact (External AC Power)





* Contact Point power supply (External DC Power)
Apply DC instead of AC to the AC power connector shown in section 3.1.3.Check the (+), (-) mark on the PCB and connect the correct device that needs power supply. To supply DC power, it is recommended to receive supply after connecting external power.

* Power supply of Contact Point (Internal DC power)




As shown in above picture, there is a jumper beside contact power supply connector. If external power cannot be obtained for the contact point, then we can use this jumper and get power supply from the source that drives the relay board. The left jumper can select between 12V and 5V while the right jumper connects to the GND. The left jumper can be selected based on required voltage whereas the right jumper can be connected regardless of position. To get external power supply, jumper must be connected.




Picture of AM-RB04-B (Relay relay power supply board)





Can control other home appliances by connecting with socket.



Can turn on incandescent lamp.



Can control max 4 other lamps or home appliances.