Photonic Universe MC4-compatible adaptor with 10A blocking diode
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
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Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
This MC4-compatible adaptor with a 10A blocking diode allows you to connect several solar panels in parallel (to common positive and common negative terminals) and run them through a single solar charge controller. It eliminates the risk of back flow of power through solar panels, particularly when different sized solar panels are used in the same array, or when one or more solar panels are prone to shading.
The adaptor can also be used for a single solar panel as a blocking diode, to ensure that no battery power is fed back through the solar panel at night time.
Subject to the maximum current and voltage rating of the adaptor (1000V 10A DC), it can also be used in more complex solar arrays with multiple strings of solar panels connected in series, in parallel, to ensure that power only flows in one direction.
The adaptor features a male MC4-compatible connector and a female MC4-compatible socket, which means it can easily be plugged into the end of a solar panel cable with a compatible connector.
The adaptor can be easily disassembled if a diode inside needs to be replaced, and quickly reassembled. It is also fully waterproof, and suitable for outdoor applications.
Technical Specification