The Design range includes three versions, Design 10, Design 30 and Design 50. Design 10 is suitable for installations where the board will not be on show. Design 30 is an aesthetically pleasing surface mounted unit with additional installation benefits including the cable clamp to reduce the strain on the main terminals and a cable protector plate to protect the cables from sharp edges coming through the rear of the board. Design 50 is the latest addition to the Design range, focusing on clean aesthetics and a flush fit for seamless integration into any home. Design 50 comes as standard with all of the Hager installation features you would expect.