Hammond Electronics 1551 family of miniature general-purpose ABS enclosures now includes shallower versions of the existing rectangular units, new square-plan sizes in two heights, and flanged lids for all plan sizes. Each plan size is now available in heights of 15 and 20mm, in black or grey, with or without key ring and with a plain or flanged lid. Two internal mounting posts at opposing corners enable direct PCB fixing, and thanks to their lap-joint construction, 1551 enclosures offer IP54 protection.