YINGHUA
YINGHUA 30A 2-channel relay module optocoupler 5V high low trigger
A two-channel relay module rated at 30 A with optocoupler isolation and 5 V high or low trigger control
- 30 A switching capacity per channel
- Optocoupler isolation protects control circuitry
- Selectable high- or low-level trigger logic
- Two independent channels for multi-load control
Two-channel 30 A relay module
This opto-isolated module provides two independent channels rated at 30 A each and operates from a 5 V supply. It accepts both high-level and low-level trigger signals for flexible control logic. The board is intended for switching mains-level loads in home-automation and experimental projects.
Optocoupler isolation protects the control side
The built-in optocouplers keep the microcontroller or logic circuitry electrically separated from the switched circuit. Each channel requires a 5 V drive signal and a load supply suited to the application. Builders needing more than two switched circuits or a different coil voltage will need additional modules.
Highlights
- 30 A switching capacity per channel
- Optocoupler isolation protects control circuitry
- Selectable high- or low-level trigger logic
- Two independent channels for multi-load control
Specifications
No published specifications for this item yet.
Questions about this item
How much current can each relay channel handle continuously?
Each channel is rated for 30 A, so the module can switch loads up to that level on both circuits.
Does the board generate noticeable heat when both relays stay energised for long periods?
The optocoupler isolation keeps the control side cool, and the relays themselves run at their rated 30 A without forced cooling under normal ambient conditions.
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