Description
Product Description
This 5V 4-Channel Non-Optocoupler Relay Module is a robust and high-performance control board designed for developers and engineers who require direct, high-current control without optical isolation. It is engineered specifically for industrial-grade applications where signal integrity and powerful switching capabilities are paramount.
Unlike standard opto-isolated relay modules, this board uses high-quality industrial relays connected directly to the control logic, which enables faster response times and the ability to handle larger inrush currents. Each channel is equipped with a protection diode to suppress back EMF from the relay coils, ensuring longevity and stable operation. It accepts a 5V logic level input (commonly from Arduino, Raspberry Pi, PLCs, or other microcontrollers) to switch loads of up to 10A, making it exceptionally versatile.
The module features screw terminals for secure AC/DC load connections, LED indicators for each relay’s status, and standard pin headers for easy integration into prototyping systems. Its design focuses on durability, making it suitable for continuous operation in industrial control panels, commercial automation systems, and demanding DIY projects.
Key Features
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Direct Control, Non-Optocoupler Design: Faster switching response and robust performance for industrial applications, eliminating delays from optical isolation.
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4 High-Current Channels: Control up to four independent high-power circuits with a single, compact module.
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Industrial-Grade Relays: Utilizes durable, long-life mechanical relays rated for high inrush currents, ideal for motors and inductive loads.
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High Load Capacity: Each relay supports up to 10A, allowing control of a wide range of appliances and equipment.
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5V Logic Compatible: Directly interfaces with popular microcontrollers (Arduino, STM32) and development boards using a 5V signal.
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Integrated Protection: Each channel includes a flyback diode across the relay coil to protect your control circuit from voltage spikes.
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Clear Visual Status: Bright LEDs indicate the ON/OFF state of each relay channel for easy monitoring.
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Secure Screw Terminals: Ensure reliable and vibration-resistant connections for both control and load wiring.
Main Parameters
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Channels: 4
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Control Signal Voltage: 5V DC (Logic Level)
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Module Supply Voltage: 5V DC (for relay coils)
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Relay Type: Mechanical, Non-Latching (Single Coil)
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Contact Configuration: SPDT (Single Pole, Double Throw) – COM, NO, NC per channel
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Maximum Load (per channel): 10A @ 250VAC or 10A @ 30VDC
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Switching Time: <10ms (Response)
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Dimensions: Approx. 120mm x 75mm x 18mm (L x W x H)
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