My Wrekin

MC Hercules D400

Hercules D400 manhole cover mm x mm

  • Indexed covers ensure correct fit first time, every time.

    Indexed corners
  • Safety keyway prevents accidental disengagement of the lifting key during the handling process.

    Safety keyway
  • Inspection window allows safe and easy view into chamber.

    Inspection window
  • Specially designed cover support geometry reduces movement relative to the frame, minimising seating wear.

    Cover support geometry
  • Enlarged frame corners help to dissipate, load minimising bearing pressure.

    Enlarged frame corners
  • Anti-flex covers prevent the causes of cover seating wear, eliminating excessive noise and catastrophic failure.

    Anti-flex cover
  • Mechanical lifting points are provided.

    Mechanical lifting point
  • 60+PSRV tested at top surface of chequer by UKAS accredited 3rd party.

    PSRV tested

Product images

Product drawings

General information

Stock code
MC Hercules D400
Primary material
Ductile iron
Manhole cover

Standards, classes and groupings

BS EN 124 Class
BS EN 124 Group


BS EN 124 and CD 534 apply to products with a clear opening up to 1 metre. The Hercules range of access covers have a clear opening greater than this, however load capability and design features exceed the requirements of these documents.

Please note that Hercules 1,200 x 1,200mm cover is the only cover in the range to have keyholes for manual lifting.


Wrekin product code Product name Description My Wrekin
GRITBLOCKER GritBlocker Anti-blockage keyway insert

1. Wrekin Products Ltd is continually seeking to improve our products and therefore reserves the right to alter product specifications without prior notice.
2. It is the responsibility of all users to satisfy themselves the above data is current.
3. Installation details are available on request.