4-Channel Relay Module - 12V (High and Low Level Trigger)

The 4-Channel Relay Module is a versatile switching module designed to control high-voltage and high-current circuits with a low-voltage microcontroller or other control devices. This module operates at 12V DC and provides four independent channels, allowing you to control four separate circuits simultaneously.

One of the notable features of this relay module is the ability to select the trigger level (HIGH or LOW) for each channel using jumpers. This flexibility allows you to configure the module to trigger with either a HIGH or LOW input signal, enhancing compatibility with different control devices.

Each channel of the relay module typically provides a load capacity of up to 10A at 250VAC or 30VDC, making it suitable for a wide range of applications. You can use this module to control lights, fans, motors, solenoids, and various other electrical appliances or devices.

The relay module includes screw terminal blocks for easy connection to external circuits, LED indicators for each channel to display the relay activation status, and freewheeling diodes to protect against back electromotive force when switching inductive loads.

This relay module is commonly used in automation, robotics, home automation, and various electronic projects where remote or automated control of electrical devices is required.

Specificatoins of 4-Channel Relay Module - 12V (High and Low Level Trigger):

• Type: Relay Module
• Number of Channels: 4 channel
• Operating Voltage: 12V DC
• Working Current: 300mA
• Trigger Current: 3mA ~ 5mA
• Trigger Levels: Selectable trigger level using a jumper (HIGH or LOW)
• Low-Level Trigger Voltage: 0V ~ 1.5V
• High-Level Trigger Voltage: 3V ~ 5V
• Load Capacity: 10A at 250VAC or 30VDC
• Terminal Block: Screw terminal block for easy connection to external circuits
• LED Indicator: Includes an indicator LED to show relay activation status
• Mounting: mounting holes
• Module Interfaces:
• DC+: Positive power supply (by relay voltage power supply)
• DC-: Connect power negative
• IN1: 1 channel signal to trigger the end , you can set a high or low level control relay
• IN2: 2 -channel signal to trigger the end , you can set a high or low level control relay
• IN3: 3 -channel signal to trigger the end , you can set a high or low level control relay
• IN4: 4 -channel signal to trigger the end , you can set a high or low level control relay
• Relay outputs: (for each channel)
• NO: Normally open relay interface
• COM: Common Interface Relays
• NC: Normally closed relay interface
• Dimensions: 50mm x 73mm x 18.5mm

Features of 4-Channel Relay Module - 12V (High and Low Level Trigger):

• Quad Channels: Provides four independent relay channels for simultaneous control of four circuits.
• Selectable Trigger Level: The jumpers allow you to choose between HIGH or LOW trigger levels for each channel, enhancing compatibility with different control devices.
• High Load Capacity: Capable of switching high-voltage and high-current loads for versatile applications.
• Usage Tip:
• Ensure that the voltage and current ratings of the relay module match the requirements of the loads you intend to control. Always follow safety guidelines when working with high-voltage circuits.
• The module can be set to high or low-level trigger by jumper:
• A. When the jumper is shorted to LOW, it is triggered at low level.
• B. When the jumper is shorted to high, the trigger is high.
• Caution:
• Exercise caution when working with high-voltage circuits, and ensure proper isolation and protection to prevent electrical hazards. Double-check the wiring and connections before applying power to the relay module.