8 channel 5V relay module is used to control various appliances and equipment by switching ON and OFF AC or DC loads with large current. The module can easily be controlled with a variety of microcontrollers. It consists of 8 optically isolated digital inputs. The ground of the relay coils is separated from the ground for the input signals.
It can work with both 3.3V and 5V. Each channel requires a very small driving current of about 15-20mA. The relays work under 250V / 10 A (AC) or 30V / 10A (DC). Being optically and magnetically isolated makes this module safer by providing protection to the input from the electrical faults at the output.
Features of Relay Module
- Relay Maximum output: DC 30V/10A, AC 250V/10A.
- 5V 8-Channel SPDT Relay interface board with optocoupler isolation
- The standard interface which can be controlled directly by MCU
- Low-level trigger, equipped with status indicator led
- Low noise relay with NO and NC ports, easier to connect and control the connected devices
- Selection of plastic material for high temperature
- PCB size: 5.7 x 13.8 cm
Pins Description:
| PINS | DESCRIPTION |
| VCC | Connected to the positive supply voltage (supply power according to relay voltage) |
| GND | Connected to the negative supply voltage |
| IN1 | Signal(LOW Level) triggering Relay 1 |
| IN2 | Signal(LOW Level) triggering Relay 2 |
| IN3 | Signal(LOW Level) triggering Relay 3 |
| IN4 | Signal(LOW Level) triggering Relay 4 |
| IN5 | Signal(LOW Level) triggering Relay 5 |
| IN6 | Signal(LOW Level) triggering Relay 6 |
| IN7 | Signal(LOW Level) triggering Relay 7 |
| IN8 | Signal(LOW Level) triggering Relay 8 |
Specifications:
- Operating voltage: 3-5V DC
- Maximum output: DC 30V/10A, AC 250V/10A.
- Driving current: 15-20mA
Applications and uses:
8 channel 5V relay module can be used with:
- Support all single-chip microcomputer control
- Industrial circle
- PLC controller
- Household intelligent control
