5v 4 channel relay with optocoupler
5v 4 channel relay with optocoupler
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Looking to buy 5v 4 channel relay with optocoupler at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Specifications
| Module Type | 4-Channel Relay Module with Optocoupler Isolation |
| Operating Voltage | 5V DC (control side) |
| Trigger Level | Active Low (0V to activate relay) |
| Number of Channels | 4 Independent Relays |
| Relay Type | SPDT (Single Pole Double Throw) - NO, NC, COM per channel |
| Relay Rating | 10A @ 250V AC / 10A @ 30V DC (per channel) |
| Coil Voltage | 5V DC |
| Optocoupler Chip | 817C (or equivalent) - provides electrical isolation |
| Isolation Voltage | Up to 5000V between control and load side |
| Control Signal Current | ~15-20 mA per channel |
| Quiescent Current | ~200 mA (all relays energized) |
| Indicator LEDs | 4 x Red LEDs (one per channel, indicates relay ON status) |
| Input Header | 6-pin (GND, IN1, IN2, IN3, IN4, VCC) |
| Output Terminals | Screw terminals - 3 per relay (NO, COM, NC) |
| Board Dimensions | ~75 mm x 55 mm x 19 mm |
| Mounting Holes | 4 x M3 corner holes for secure mounting |
| Weight | ~60 g |
| Compatibility | Arduino, Raspberry Pi, ESP32, ESP8266, STM32, PIC, 8051, and any 3.3V/5V microcontroller |
| Origin | Original/Authentic Components |
Why Choose 5v 4 channel relay with optocoupler?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of 5v 4 channel relay with optocoupler
- Optocoupler Isolation: Each channel uses an 817C optocoupler to electrically isolate the microcontroller from the high-voltage relay coil, protecting your development board from voltage spikes and back-EMF.
- 4 Independent Channels: Control four separate appliances, motors, solenoids, or circuits simultaneously from a single module.
- High-Power Switching: Each relay handles up to 10A at 250V AC or 10A at 30V DC - sufficient for household appliances, pumps, heaters, and lighting systems.
- Active-Low Trigger: Relays activate when the input pin is pulled LOW, making it compatible with most microcontroller GPIO logic and easy to implement in code.
- LED Status Indicators: Individual red LEDs for each channel provide instant visual feedback on which relays are currently energized.
- SPDT Relay Outputs: Each relay provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals, giving you flexibility for both on-state and off-state switching configurations.
- Screw Terminals for Secure Connections: Heavy-duty screw terminals ensure reliable high-current connections without soldering.
- Flyback Diodes Included: Built-in protection diodes across each relay coil suppress voltage spikes during switching, extending component life.
- Compact & Mountable: Four M3 mounting holes allow secure installation inside enclosures, control panels, or project boxes.
- Wide Microcontroller Compatibility: Works seamlessly with 5V logic (Arduino Uno, Mega, Nano) and 3.3V logic (ESP32, ESP8266, Raspberry Pi GPIO) thanks to the optocoupler input stage.
- Safety First: Optocoupler isolation prevents dangerous high-voltage feedback from reaching your microcontroller - essential for any project involving mains electricity.
- Versatile 4-Channel Design: One module replaces four individual relay boards, saving space, wiring complexity, and cost in multi-device control systems.
- Beginner-Friendly: Clear pin labeling, simple active-low logic, and abundant online tutorials make this module accessible to students and first-time builders.
- Professional-Grade Reliability: Rated for 100,000+ mechanical switching cycles per relay - built for long-term, continuous-duty applications.
5V 4-Channel Relay Module with Optocoupler
Control up to four high-voltage appliances, motors, or lights safely from your Arduino, Raspberry Pi, or ESP32 with this optocoupler-isolated 4-channel relay module. Available at Tech Depot India, Bengaluru - your trusted source for reliable electronics components with fast shipping and dedicated support.
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
Order your 5v 4 channel relay with optocoupler today and start building your next project.
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