8-Channel 12V Relay Module USB (PC Intelligent) Control Switch

Specifications:

Relay Channels: 8
Operating Voltage: 12V DC
Control Interface: USB
Relay Type: Electromechanical
Relay Contact Rating: 10A @ 250V AC or 10A @ 30V DC
Control Signal: TTL (Transistor-Transistor Logic)
Software Compatibility: Typically works with PC-based control software.

Special Features:

Multiple Relays: Allows control of up to 8 different devices or circuits independently.
USB Interface: Connects to a PC for easy control and automation.
Indicator LEDs: Each relay has an LED indicator to show its status (on/off).
Isolation: Relays are optically isolated from the control signal to protect the PC from high voltages.

Wiring Connections:

Power Supply:
- 12V DC Input: Connect to a 12V DC power source. Ensure correct polarity.
- GND: Connect to the ground of the power source.
USB Connection:
- USB Cable: Connects the module to a PC for control. The module is typically detected as a COM port or a USB device.
Relay Output:
- COM (Common): Connect to the common terminal of the device or circuit you want to control.
- NO (Normally Open): Connect to the terminal that will be activated when the relay is energized.
- NC (Normally Closed): Connect to the terminal that will be deactivated when the relay is energized.
Relay Control Signals:
- IN1 to IN8: Connect to the corresponding relay control signals from the PC or control circuit.

Power:

Operating Voltage: 12V DC.
Current Consumption: Depends on the load connected to each relay.
Power Supply Source: Can be a dedicated 12V DC power adapter or battery.

Original price was: ৳ 2,200.00.Current price is: ৳ 1,945.00.

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Specification

Overview

Input and Output:

Input:
- Relay Control Signals: TTL signals from the PC via USB.
Output:
- Relay Contacts: Can switch AC or DC loads up to 10A per relay.

Physical Characteristics:

Dimensions: Typically around 10 x 7 cm (may vary by manufacturer).
Weight: Approximately 150 grams.
Construction: Usually enclosed in a plastic or metal casing with mounting holes for installation.

Technical Specifications:

Relay Type: Mechanical relay with normally open (NO) and normally closed (NC) contacts.
Control Voltage: TTL compatible control signals (5V logic).
Isolation: Optocouplers provide electrical isolation between the control circuit and relay contacts.
Relay Contact Rating: 10A at 250V AC or 10A at 30V DC.

Additional Features:

Ease of Use: Simple to connect and control via PC.
Safety: Built-in protection for high-voltage switching.
Automation: Can be used in various automation projects and smart home systems.

How to Use:

Connect Power:
- Attach a 12V DC power source to the power input terminals (12V and GND).
- Ensure correct polarity to avoid damage.
Connect to PC:
- Use a USB cable to connect the module to your computer.
- The module should be detected by the PC as a serial device or USB interface.
Install Software:
- Download and install any necessary drivers or software provided by the manufacturer for control.
- The software may allow you to configure and control each relay channel from your PC.
Connect Devices:
- Connect the devices or circuits you want to control to the relay outputs (COM, NO, and NC).
- Ensure that the devices’ power ratings do not exceed the relay’s specifications.
Control Relays:
- Use the provided software to send control signals to the module.
- Activate or deactivate each relay channel as needed.
Monitor Operation:
- Observe the status LEDs to ensure that relays are functioning as expected.
- Adjust settings or connections as necessary for your specific application.

This 8-channel 12V relay module with USB control is a versatile tool for automating and controlling multiple devices from a PC. Its ability to handle high-current loads and its simple integration with computer systems make it suitable for a wide range of applications, from home automation to industrial control.