3 Channel Relay Module High Voltage Control Board with Optocoupler Isolation for Smart Home Automation and Industrial Equipment

About this item

• [DUAL MODES] This advanced 3-channel relay module supports both high and low level triggering options, providing flexibility for various control applications. The intelligent system automatically adapts to different voltage levels (3.3V-30V DC) while maintaining precise switching accuracy for sensitive electronics.
• [INDUSTRIAL-GRADE PROTECTION] Featuring professional optocoupler isolation technology, this module creates a protective barrier between control circuits and high-voltage components. The reinforced isolation prevents voltage spikes and electrical noise interference, ensuring reliable operation in demanding industrial environments.
• [FAIL-SAFE DESIGN] Engineered with a unique fault-tolerant architecture, this relay module maintains system stability even during wiring faults or power fluctuations. The intelligent circuit design prevents accidental activation and protects connected devices from damage due to control signal failures.
• [HIGH-POWER HANDLING] Capable of switching up to 7A at AC or 30V DC, this robust relay module handles substantial electrical loads with ease. The heavy-duty contacts and advanced arc suppression technology ensure long-lasting performance for motor controls, lighting systems, and power distribution applications.
• [USER-CENTRIC INSTALLATION] Designed for effortless setup, the module features clearly labeled terminals, universal mounting options, and plug-and-play wiring. The compact 49x42x20mm size fits in tight spaces while the durable construction withstands vibration and environmental stress in both home and industrial settings.