5V 30A 1-Channel Relay Module

5V 30A 1-Channel Relay Module is a high-power switching device designed for controlling AC or DC loads through microcontrollers like Arduino, ESP8266, STM32, or Raspberry Pi. It features a robust relay that supports up to 30A current at 250V AC or 30V DC, making it suitable for heavy-duty applications such as motors, lights, fans, or home appliances.

Key Features:

• High Current Capacity: Supports switching loads up to 30A at 250VAC or 30VDC.
• Optocoupler Isolation: Provides safe electrical isolation between the control circuit and relay.
• 5V Trigger Compatible: Works with 5V logic levels, ideal for Arduino and compatible boards.
• LED Indicators: On-board LED for power and relay status indication.
• Built-In Flyback Diode: Protects the relay driver circuit from voltage spikes.

Technical Specifications:

• Relay Type: 1-Channel electromagnetic relay
• Trigger Voltage: 5V
• Control Signal Logic: Active Low
• Max Switching Voltage: 250VAC / 30VDC
• Max Switching Current: 30A
• Input Current: 70~100mA (typical)
• Isolation Method: Optocoupler
• Indicator LEDs: Power and relay status

Mechanical Specifications:

• Board Dimensions: Approx. 50mm × 26mm × 18mm
• Mounting Holes: 2 × M3 screw holes for easy chassis mounting
• Connector Type: Screw terminal for output, header pins for input
• PCB Material: FR4 with high-quality solder mask

Pinout and Wiring:

• Input Pins: VCC, GND, IN (trigger signal)
• Output Terminals: NO (Normally Open), COM (Common), NC (Normally Closed)
• Wiring: IN pin connects to GPIO of controller, relay terminals wired to load circuit

Datasheet and Documentation:

• Download 5V 30A Relay Module Datasheet (PDF)

Applications:

• Home Automation: Switch appliances, fans, or lamps remotely.
• Industrial Control: Automate machines, conveyor belts, or HVAC systems.
• Smart Projects: Integrate into IoT systems for load control.
• Motor Control: Start/stop DC or AC motors using microcontroller.
• Battery Charging: Control high current charging/discharging circuits.

Equivalent Models:

• SRD-05VDC-SL-C: Standard 10A relay module for general use
• Songle SLA-05VDC-SL-A: High-current compatible relay module
• HF46F-5: Industrial-grade alternative for precision switching

Package Includes:

• 1 x 5V 30A 1-Channel Relay Module