24V 4-Channel Relay Module (with Light Coupling)

The isolation grooves in the load and control sections of this 24V 4-Channel Relay Module (with Light Coupling) ensure that it complies with safety standards. isolator module for optical couplings.

The 4 Road/Channel Relay Module triggers more steadily and dependably. High-end SMT process for designing twin FR–4 circuit boards. It contains instructions for relay and power operations. Screw terminals provide simple access to the C, NC, and NO relay terminals, simplifying the wiring of the board.

The 4 Channel 24V Relay Module’s inputs are isolated to safeguard any sensitive control circuitry. It can be controlled by a variety of microcontrollers, including Arduino, AVR, PIC, ARM, and others.

Utilising such high-voltage relays removes the possibility of the relay overheating because electromechanical relays regulate current consumption based on voltage rating.

Module interface:

The positive (according to the relay voltage VCC: connect power supply)
GND: connect power negative
IN1: relay module (effective) high-level trigger signal trigger end
IN2: relay module (effective) high-level trigger signal trigger end
IN3: relay module (effective) high-level trigger signal trigger end
IN4: relay module (effective) high-level trigger signal trigger end

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 a 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.

Features :

• Equipped with high-current relay 10A@250VAC / 10A@30VDC
• It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc
• High-quality screw terminals (Terminal Block) provided (C, NC, NO) for quick and easy connection
• A freewheeling diode to protect your microcontroller
• Input Signal Pin can be connected to Burg stick for easy accessibility
• LED status indicators to indicate the relay ON/OFF status
• Mounting holes provided
• Signal input with a high-level signal, the common and often start conduction;
• The relay can directly control all kinds of equipment and load;
• One often opened a normally closed contact;
• Blue KF301 terminal line more convenient.