Data Sheet

load
type
Typical
applications
Rating
Max DC load capacity
AC1
Non inductive
or
slightly
inductive loads
16A @
250V
AC
AC15
Control of
electromagnetic
load
(>72VA)
3A @
120V
AC
1.5A @
240V
AC
AC3
Control of
motor
750W
DC1
Non inductive
or
slightly
inductive loads
16A @
24V
DC
DC13
Control of
electromagnetic
loads
0.22A
@ 120V
DC
0.1A @
250V
DC
A full datasheet for the relays used on the RLY02 is in useful links tab of the site.
First Step - Install the Driver
The USB-RLY02 module uses the Microchip PIC24FJ32GB002 to handle all the USB
protocols. Before using the USB-RLY02, you will need to download the Devantech inf
files and unzip them into a temporary folder. Connect the RLY02 and windows will
detect it and ask for the drivers. Point windows to the inf folder and it will install the
driver. The RLY02 will now appear as a com port.
Which COM port?
After installing the drivers, and plugging in the USB-RLY02 module to a spare USB port,
you will want to know which COM port it has been assigned to. This will vary from
system to system depending on how many COM ports you currently have installed. To
find out where it is, right click on your "My Computer" desktop icon and select the
"Device Manager" tab. Now scroll down and open the "Ports (COM & LPT)" tab. You
should see the USB serial port listed - COM2 in the example below. If you want to