5V 4 channel relay module with light coupling
This is a 4 channel 5V relay module with light coupling. This board is manufacture from new and advance design with high end SMT processors. The terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the board very easy. The relay is safely drive by transistor BC547 hence your input device, such as Arduino, is secure from relay circuit. The inputs of this module are isolate to protect any delicate control circuitry. A wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on can control it. The use of such high-voltage relay eliminates the risk of heating up of the relay as electro-mechanical relay limit the current consumption in accordance with a voltage rating.
- Equipped with high-current relay
- It can control both AC and DC appliances such as Motors, lights, fans, etc.
- High-quality screw terminals
- Freewheeling diode to protect your microcontroller