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

SKU MD1207 Category

Blocking Diode line Adapter, 20A, 1000V.

Compatible with MC4 Type Solar Connector.

Prevent current back flow and battery discharge overnight.

CE Certified.

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£ 4.16

In stock

Ships from the UK. Taxes and Delivery charges calculated at checkout.

UK Delivery 1-2 Days

Europe Delivery 2-3 Days
Global Delivery 3-5 Days

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 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