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Product Overview
The 5V Relay Module (4-Channel, Active Low Trigger) is a compact switching solution for controlling high-power devices (up to 250V AC/10A) with 5V microcontrollers like Arduino and Raspberry Pi. Ideal for automation, IoT, and industrial systems, it features optocoupler isolation and active low logic for safe, reliable operation.
Key Features
- 4 Independent Channels: Control 4 AC/DC devices (e.g., lights, motors).
- Active Low Trigger: Activates with LOW signal (0V).
- Optocoupler Isolation: Protects microcontrollers from voltage spikes.
- SPDT Relays: NO/NC configurations for flexible wiring.
- LED Status Indicators: Visual relay-state feedback.
- RoHS Compliant: Safe for electronics and environment.
Technical Specifications
- Control Voltage: 5V DC.
- Load Capacity: 250V AC / 30V DC, 10A per channel.
- Trigger Current: 15–20mA per channel.
- Isolation Voltage: ≥1,500V.
- Operating Temperature: -20°C to +70°C.
Benefits
- Safe Isolation: Protects low-voltage circuits.
- Multi-Device Control: Manage 4 loads with one module.
- Easy Integration: Works with 5V microcontrollers.
- Durable: Relays rated for 100,000+ cycles.
Usage Instructions
- Wiring:
- Connect VCC (5V) and GND to the microcontroller.
- Link IN1–IN4 to GPIO pins.
- Attach loads to relay terminals (NO/COM/NC).
- Code: Set GPIO to LOW to activate relay.
Safety & Storage
- High Voltage: Use insulated tools.
- Inductive Loads: Add snubber circuits.
- Storage: Keep dry and dust-free.
Applications
- Home automation (lights, AC units).
- Industrial machinery control.
- IoT projects (smart agriculture, security).
- DIY repairs and commercial electronics.
Why Choose This Relay Module?
Its 4-channel design, active low trigger, and optocoupler isolation ensure safe, reliable control of high-power devices. Perfect for automation and IoT projects.
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