8 Channel Relay - 5V DC with OptoCoupler Module Board (220v AC 7A)

8 Channel 5V DC Optocoupler Relay Module

This 8 Channel 5V DC Optocoupler Relay Module interfaces low-voltage digital logic with high-voltage AC/DC devices. It incorporates eight independent relays, each operating on a 5V DC input. Each channel includes an optocoupler for electrical isolation. This isolation protects microcontrollers from high-voltage transients. The module is rated to switch loads up to 250V AC at 10A or 30V DC at 10A. Integrated LED indicators provide relay status feedback. Screw terminal blocks facilitate wiring. It supports applications requiring high-power switching.

Specifications:

• Brand: Generic
• Channels: 8
• Operating Voltage: 5V DC
• Trigger Voltage: 3.3V – 5V Logic Level
• Relay Type: SPDT
• Relay Rating: 10A @ 250V AC / 10A @ 30V DC
• Output Terminals: NO, NC, COM
• Optocoupler Isolation: Yes (Per Channel)
• Indicator LEDs: Yes
• Module Dimensions: Approx. 13.8 x 5.7 x 1.7 cm
• Temperature Rating: –20°C to +70°C

Key features and benefits:

• 8 independent relay channels.
• Integrated optocoupler isolation per channel.
• Compatible with 5V DC logic (e.g., Arduino, ESP32, Raspberry Pi).
• Switching capacity: 250V AC 10A or 30V DC 10A.
• LED indicators for relay status.
• Screw terminal blocks for wiring.
• Operating temperature range: –20°C to +70°C.

Applications:

• Home automation systems.
• Switching high-power appliances and industrial equipment.
• Remote control power systems.
• DIY electronics and embedded systems.
• Electrical isolation for logic circuits.

Frequently Asked Questions:

Q: What is the purpose of the optocoupler?
A: The optocoupler provides electrical isolation between the low-voltage control circuit (e.g., microcontroller) and the high-voltage load circuit, preventing damage from voltage spikes.

Q: What is the maximum switching capacity of each relay?
A: Each relay is rated for a maximum switching capacity of 10A at 250V AC or 10A at 30V DC.

Q: Is this module compatible with 3.3V logic microcontrollers?
A: Yes, the module's trigger voltage supports 3.3V to 5V logic levels, making it compatible with microcontrollers like ESP32 and Raspberry Pi.

Package Includes:

*Image shown is a representation only.

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