Manhole covers Manhole covers of cast iron, without concrete, Class A15 Manhole covers round for public areas which are used exclusively by pedestrains and cyclists (e.g. green areas), construction site poured with concrete, Class A15 Load up to 50 kN Article no. Load Dimensions up to D A H 30.20.115.000 15 kN 500 554 50 30.20.116.100 50 kN 600 654 50 30.20.117.000 15 kN 700 764 50 30.20.118.000 15 kN 800 864 50