4 Road/Channel Relay Module (with light coupling) 12V

This 4-Channel Relay Module, operating at 12V and featuring light coupling, adheres to safety standards with isolated control and load areas, ensuring safety in operation. Its optical coupling isolation module enhances reliability. With a double FR-4 circuit board design and high-end SMT process, it guarantees stable performance. Clear power and relay operation instructions aid in usage. Convenient screw terminals allow easy wiring to relay terminals (C, NC, NO). Moreover, the module’s inputs are isolated to safeguard delicate control circuitry.

The use of such high-voltage relay eliminates the risk of heating up of the relay as electromechanical relay limit the current consumption in accordance with a voltage rating.

Meaning of High level and Low-level

1. High-level trigger refers to using the anode voltage at the VCC connection way of a trigger and triggers the end when the trigger side has the positive voltage or to trigger voltage when the relay is off.
2. Low-level trigger refers to using the negative voltage at the GND connection way of a trigger and triggers the end when the trigger side has 0 v low voltage or voltage to can trigger, the relay is off.

Package includes:

1 x 4 Road/Channel Relay Module (with light coupling) 12V