16 Channel 16 Way 12V Logic Relay Shield Module With Optocoupler NEW UK Seller


4 in stock





This is a high quality board incorporating 16 x 12V DC Relays which allows for easy switching of higher voltages and are ideal for use with a microcontroller such as a PIC, Arduino, ARM or AVR.

This is a high quality 12V DC Relay module using low power SMD components, allowing for easy switching of higher voltages and are ideal for use with a 12v Power supply.
remember most microcontroller such as a PIC, Arduino, ARM or AVR are
3.3v or 5v and therefore a seperate 12v power supply will be required to
power these relay modules, with the logic control coming from the

The relays used in this module can switch up to 10A at 250V AC, or up to 10A at 30V DC.

An LED indicator shows which relays are currently on.

Inputs are Active Low and need to sink approx. 5ma per input

If the input voltage is low this energises the relay, the relay’s NO (Normally Open) contact is connected to the relay’s COM (common) contact.

If the input voltage is high 12v, this de-energises the relay’s NC (Normally Closed) contact is connected to the relay’s COM (common) contact.

On the 2 way Terminal Block marked VCC and GND, supply your 12v Voltage. For each relay that energises you will need approx. 45ma current to drive each relay coil. So if all the realys are energised your 12v supply must be able to provide approx. 720mA.


Important Note Before you decide to Buy: This item is provided with NO instructions or data sheets. We are unable to provide any technical support,
it is therefore essential that you have the resources available to
make use of this item and how it operates within the electrical
specifications. We check and test each module, we are therefore unable
to accept any returns based on a faulty module.

This item will be fully tested prior to dispatch. Buy with confidence. 

Please read and note the following before ordering:
1) My Shipping is for UK Mainland ONLY. No Scotish Highland, Northern Ireland, Isle of Wight or other Isles. Some areas may incur additional costs, if you are unsure please contact me prior to ordering.
2) Please ensure you have a valid contact phone number, I may pass this number onto the Carrier for delivery. No refund for carriage cost will be offered, if delivery is delayed as a result of no valid contact number being provided.
3) I welcome collection for orders,please select collection on checkout otherwise your order will be despatched. Once your order has been picked and tested if applicable. We will then inform you of a date and time for collection. Please bring your payment card for verification when collecting your order. No order will be released without card verification.
4) I am unable to provide ANY technical support, please ensure you fully understand how this item works by checking for any datasheets (not provided with the item), to enable the product to be used within your application / project.
5) VERY IMPORTANT >> Do not make ANY permanent connections. Please test the item BEFORE making any permanent connections e.g. soldering to the item. Please ensure you have the means to test the item WITHOUT applying ANY solder to the item. If an item has any solder applied I will NOT accept any return.
6) When upgrading to 1st class post, (if the option is available), please note this is sent via Royal Mail and is not a guaranteed next day service. If you need a 48hr service please select 48hr delivery at extra cost. This will be sent via Royal Mail or courier. I do not offer a 24hr service. No weekend or public bank holiday deliveries.
7) We attempt to send out all orders received before 10.00am. This excludes weekends and public holidays.
8) Customers placing multiple orders. – I may ship all the orders as one, please do not ask for a refund of shipping cost after you have placed your orders. Please do not place your orders if you want a refund of shipping cost.
9) Some items may have a “Warranty Void if removed” sticker, please DO NOT tamper or remove these stickers. I will not accept any rertuns with tampered or removed sticker. Some buyers have tried to send back items that I have not supplied.

**** Important note **** Some sellers claim the stock is in the UK, please be careful, the seller is often in China and sends the item to a UK agent who then forwards the item on with a UK stamp. Check where the seller is located not just the item location. All my items are physically with me, here in the UK and I offer a quick delivery and communication within the UK.

During busy periods there maybe a delay in delivering your package by Royal Mail. I apologies in adavnce for any inconvenience but would like to point this out before you place your order.