Free Delivery UK Mainland *Orders over £250, excludes large items
Best Price Guaranteed Great value
Fast DeliveryRoyal Mail
& Parcelforce
30 Day Returns
You are covered
Trusted by Customers
Certified Reviews

Solar Blocking Diode Adapter, Rated 20A, MC4 Type Compatible.

SKU: MD1207

In stock

Blocking Diode line Adapter, 20A, 1000V.

Compatible with MC4 Type Solar Connector.

Prevent current back flow and battery discharge overnight.

CE & TUV Certified.

Order by 12pm, for Same Day Dispatch

Please register for a trade account to view pricing

£4.99 (*£4.16 ex. VAT)

In stock

*We are a UK based company For customers outside the UK, VAT is removed at checkout. However, Import VAT and Customs Duty may apply in your country.

Inline Adapter with inbuilt Blocking Diode, rated to 20A, 1000V.

Compatible with MC4 Type Solar Connector.

Blocking diodes ensure current flows only in one direction. Usage scenarios:

  • A diode placed on positive side of the solar panel circuit will prevent draining the battery overnight.
  • On multi-panel solar arrays with parallel branches, put a diode on each branch. This will prevent back flow of current when a panel is shaded, or when different panel types are used in the same array.

Ensure 20A rating is not exceeded on each branch circuit.

Rated IP67 for outdoor and indoor use.

CE and TUV Certified.


  • Rated Voltage: 1000V DC
  • Rated Current: 20Amp
  • Operating Temperature: -40°C to +85°C
  • Cross Section Range” 1 x 4.0 mm²
  • Protection Class: IP67
  • Application Class: A
SKU: MD1207 Category: