Relay Module 5V (4 Channel) Active Low Trigger
The 5V 4-channel relay module provides four independently controlled electromechanical relay outputs in a convenient PCB-mounted module. It allows low-voltage digital control signals from a microcontroller or development board to switch external electrical loads that require a separate power source.
The module uses active-low triggering, meaning a relay channel is activated when its corresponding input is driven LOW. Each channel provides normally open (NO), normally closed (NC), and common (COM) contacts, allowing the module to be used for switching, isolation, and control applications involving different types of loads.
Features:
- Four independently controlled relay channels.
- Active-low trigger operation.
- Electromechanical relay switching.
- Screw terminals for load connections.
- LED indicators for relay status.
- Suitable for microcontroller control.
- Separate low-voltage control and load connections.
- Compact PCB module design.
- Easy installation and wiring.
Specifications:
| Parameter | Value |
|---|---|
| Module Type | 4-Channel Relay Module |
| Relay Type | Electromechanical |
| Number of Channels | 4 |
| Module Supply Voltage | 5V DC |
| Trigger Logic | Active Low |
| Control Interface | Digital Input |
| Relay Contact Configuration | SPDT |
| Contact Terminals | COM, NO, NC |
| Relay Contact Rating | Up to 10A, depending on relay fitted |
| Indicator | LED per Channel |
| Isolation | Optocoupler-based, depending on module version |
| Load Type | AC or DC |
| Mounting | PCB Mount |
Pinout:
Applications:
- Arduino projects.
- Raspberry Pi projects.
- Microcontroller-based automation.
- Home automation.
- Lighting control.
- AC and DC load switching.
- Motor and pump control.
- Solenoid control.
- Industrial control prototypes.
- Robotics projects.
- IoT automation systems.
Packages Included:
- 1 × Relay Module 5V (4 Channel) Active Low Trigger.
