The 1 Channel – 1 C/O (Changeover) Relay Module is a compact and reliable switching component designed for controlling a single electrical load. It includes one changeover contact (Common, NO, NC), allowing the user to switch a device ON or OFF from a low-power control signal. This relay is commonly used in automation systems, smart control panels, hobby projects, and industrial applications requiring a single-point switching operation.
Built with high-quality PCB, heat-resistant relay coil, and strong terminal connectors, this module ensures stable performance and long-term durability. It accepts a wide range of input voltages and delivers safe electrical isolation between the control signal and the load. Whether used in DIY automation or professional industrial control, it provides dependable switching with minimal power consumption.
The 1 Channel – 2 C/O (Double Changeover) Relay Module is designed for applications that require two independent switching outputs from a single control input. With two changeover contacts (NO/NC), this module supports more flexible routing of signals or loads, making it ideal for control panels, automation systems, and multi-mode switching.
Built with high-grade relay components and opto-isolated inputs, this module ensures stable and noise-free operation. It provides safe electrical isolation between control and load sides, supporting reliable switching for motors, pumps, lamps, and power circuits. The enhanced switching capability makes it suitable for professional industrial applications.
The 2 Channel – 1 C/O Relay Module features two independent relay channels, each with a single changeover contact (NO/NC). This module is perfect for controlling two loads separately from a microcontroller or automation circuit. It is used widely in smart home systems, industrial control panels, and DIY automation projects.
The module includes opto-isolated inputs to protect the controller from high voltages. Its durable relay mechanism ensures long service life, stable switching, and efficient operation. Ideal for both low-voltage control and heavy-duty electrical loads.
The 2 Channel – 2 C/O Relay Module provides two channels, each with two changeover contacts (Double C/O). This configuration offers greater flexibility for switching complex circuits or controlling multiple states of a device. It is widely used in automation, HVAC systems, and advanced motor/pump control.
Designed for high load capacity, this module ensures stable performance, noise protection, and long operational life. Opto-isolated inputs enhance safety by preventing electrical interference from reaching the control board.
The 4 Channel – 1 C/O Relay Module is designed for multi-load control applications. It allows four independent electrical loads to be switched through a microcontroller or automation system. This module is suitable for advanced home automation, industrial processes, and multi-device control panels.
Each relay features a single changeover contact, offering NO/NC output options. Built with strong PCB tracks, high-quality relays, and proper isolation, this module delivers safe and stable performance even under heavy electrical loads.
The 4 Channel – 2 C/O Relay Module provides four relay channels, each with double changeover contacts. Its multi-output configuration makes it ideal for professional-grade automation, multi-function switching, and dual-state device control.
This module offers enhanced versatility with high load capacity, strong PCB insulation, and anti-interference protection. It is a reliable solution for controlling motors, solenoids, lights, and industrial equipment with precision.
The 8 Channel – 1 C/O Relay Module is ideal for systems requiring multiple load control such as building automation, industrial machines, and large home automation setups. Each channel can control individual loads with NO/NC switching options.
The module supports microcontrollers like Arduino, PLCs, Raspberry Pi, and industrial drivers. Built with high-quality relays and isolation components, it ensures stable switching and protects against voltage spikes and electrical interference.
The 8 Channel – 2 C/O Relay Module is a high-performance module designed for professional automation tasks. Each relay comes with double changeover contacts, allowing more complex control logic and multiple switching modes.
With industrial-grade components, high insulation strength, and noise-free operation, this module is ideal for advanced automation systems, building management solutions, and large-scale industrial controls.
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