4 Channel 5V Relay Module with Optocoupler

This is a 4-Channel Isolated 5V 10A Relay Module, compatible with a wide range of microcontrollers, including Arduino, AVR, PIC, ARM, and more.

It’s capable of controlling various high-current devices and appliances. The module supports a maximum relay contact output of AC 250V 10A or DC 5V 10A, allowing direct interfacing with microcontrollers via a standard connection.

Equipped with red status indicator LEDs for each relay, the module ensures safer operation and easy monitoring. It finds applications across multiple domains, such as microcontroller-based control systems, industrial automation, PLC control systems, and smart home automation.

Perfect for projects using the Raspberry Pi, this relay module features four 5V relays, each rated at 10A/250V. It allows switching of up to four high-voltage or high-current loads through simple microcontroller commands.

Each relay is opto-isolated and can be independently controlled using a digital input. The module operates on an input voltage as low as 1.0V and supports up to 5V, making it suitable for various devices with logic levels in that range.

Specifications and Features:-

1. One normally closed contact and one normally open contact
   

2. Channel: 4 channel
   

3. Relay Operating Voltage: 3.3V to 5V
   

4. Triode drive, increasing relay coil
   

5. High impedance controller pin
   

6. Pull-down circuit for avoidance of malfunction
   

7. Power supply indicator and Control indicator lamp
   

8. Power supply and relay instructions, lit, disconnect is off;
   

9. Input signal, signal, common Terminal and start conducting;
   

10. Useful for appliance control;
    

11. DC or AC signal, control, you can control the 220V AC load;
    

12. There is a normally open and one normally close contact;
    

13. The module is compliant with international safety standards, control and load areas isolation trenches.
    

Return Policy Overview

At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.

Return Window

• Standard Returns: 7 days from delivery date for any reason, including if you simply changed your mind.
• Defective/Damaged Items: 7 days from delivery date for items received damaged or defective.
• Manufacturing Defects (Warranty): 15 days from delivery for manufacturing defects, unless a different warranty period is specified on the product page.

What Can Be Returned

Most items sold on ROBODIUM™ can be returned within the return window, including:

• Items you no longer need or changed your mind about
• Products received in damaged condition
• Items with manufacturing defects
• Wrong items received (item mismatch)
• Missing components inside the package

Return Conditions

To be eligible for a return, items must be:

• In their original, unused condition
• In the original packaging with all accessories, manuals, and free gifts (if any)
• Accompanied by proof of purchase

Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.

How to Initiate a Return

1. Contact us via email at support@robodium.com or call +91 8123109966
2. Provide your order number and reason for return
3. Submit photos/videos of the item (especially for damaged/defective products)
4. Our team will review and approve your return request within 1-2 business days

Return Pickup Process

We arrange the return pickup for you - hassle-free returns similar to major e-commerce platforms.

• Once your return is approved, we will coordinate pickup from your location.
• Pack the product securely in its original packaging.
• Include a copy of the order confirmation or packing list.
• Keep the package ready - our logistics partner will collect it at the scheduled time.

Return Shipping Costs

• Defective, damaged, or wrong items: ROBODIUM™ covers all return shipping costs. No charges to you.
• Change of mind returns: A flat return shipping fee of ₹100 will be deducted from your refund amount.

Refund Process

• Refund Method: Refunds are processed to your original payment method.
• Processing Time: 5-7 business days after we receive and inspect the returned item.
• Refund Amount: Full purchase price minus any applicable return shipping fees.
• Orders canceled before shipping receive a full refund (minus up to 5% payment gateway charges, if applicable).

Replacements

• Once the returned item is inspected and approved, we ship the replacement at no additional cost.
• Replacement items are dispatched within 2 business days of receiving your return.
• If replacement is unavailable, we provide a full refund.

Warranty Terms

All products include a minimum 15-day warranty against manufacturing defects unless otherwise specified on the product page.

Warranty does not cover: misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.

Order Cancellations

• Orders in Pending or Payment Verification status can be canceled for a full refund.
• Contact us immediately at support@robodium.com to cancel before shipping.
• Once an order is shipped, it cannot be canceled but can be returned after delivery.

Customer Service Commitment

• Email Response Time: Within 24 hours on business days
• Phone Support: Monday-Saturday, 10:00 AM - 6:00 PM IST
• Return Request Review: 1-2 business days
• Issue Resolution: Within 48 hours of verification