The 16A relay module can be used in interactive projects. It can also be used to control the lighting,

electrical and other equipments. It can be controlled through the digital IO port, such as solenoid

valves, lamps, motors and other high current or high voltage devices.

The main difference between 16A Relay module and the old version relay module is the Max

switching current.The max switching current of old version is 10A,and now the new version is 16A.

Specification



Contact Rating (Res. Load):16A 277VAC/24VDC



Maximum switching voltage: 400VAC(NO)



Max. switching current: 16A



Max. switching power: 4700VA



Operate tiem (at nomi. Vot.): 10ms max



Release time (at nomi. Vot.): 5ms max



Type: Digital



Single relay board



Digital Interface



Control signal: TTL level

Relay Module Pinout

There are a total of 7 pins on the relay module board.

Link Arduino Side:

1. Signal

2. Vcc

3. GND

Link Appliance Side:

1. COM（IN）: input positive wire from appliance

2. N/A(NC): not connected

3. NC(OUT1): Normally closed, which means that when the relay is off (a digital low "0" is received

from Arduino) the device is ON

4. NO(OUT2): Normally open, which means that when the relay is on (a digital high "1" is received from

Arduino) the device is ON.