5V 4 Channel 240VAC 10A Relay Module

The 5V 4-Channel Relay Module acts as a digital switch that allows you to control devices operating at much higher voltages and currents than standard Arduino or microcontroller boards. By sending a logic voltage to the relay input, you can safely switch devices on or off depending on your wiring setup.

Components of a Relay

• Coil: Energizes to switch the relay
• Common Terminal (COM)
• Normally Closed Terminal (NC)
• Normally Open Terminal (NO)

When the coil is energized, the common terminal (COM) connects with the normally open (NO) terminal, allowing current to flow.

Why Use a Relay?

Relays are essential for switching devices that require higher current or operate at high voltage, such as headlights, horns, motors, and home appliances. They protect your microcontroller while safely controlling larger loads.

Specifications

• Control Voltage: 5V DC
• High input voltage trigger
• Arduino compatible
• Max Control Capacity: 10A @ 250VAC or 10A @ 30VDC