5V 2-Channel Relay Module with Opto-Isolation (HW-383)
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Prices updated: 13 Oct 2026
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About this product
A 5V two-channel relay module with opto-isolated inputs, an LED indicator for each relay and a low-level trigger. It lets 3.3V or 5V microcontrollers switch separate AC or DC loads rated up to 10 A, for example in home automation and control projects.
Specifications
- Number of channels
- 2
- Trigger type
- Low-level trigger
- Trigger input voltage
- 3.3 V – 5 V
- Isolation
- Opto-isolated
- AC contact rating
- 250 V AC, 10 A max
- DC contact rating
- 30 V DC, 10 A max
- Status indicators
- 2 LEDs (one per relay)
Frequently asked questions
Can I drive it directly from a 3.3V microcontroller?
Yes, the trigger inputs are rated for 3.3V or 5V logic signals. Power the module at its 5V rating, connect each IN pin to a control pin, and share ground with the controller.
Is it suitable for switching mains AC loads?
The contacts are rated 250 V AC at 10 A maximum. Mains work requires proper insulation, enclosure and safety practice, and the load must stay within the rated limits. A low-level trigger means the relay energizes when its input is pulled LOW.
