Hammond Electronics has introduced enhanced versions of its 1591 family of small enclosures. The new 1591XX range is available in seven sizes from 87 x 57 x 36mm to 221 x 150 x 60mm. The new cases are optimised for mounting horizontal PCBs; they have four stand-offs moulded into both the top and the base. The original 1591 series featured slots in all sides for mounting PCBs vertically, the updated version has plain sides, making connector installation easier. The lids, available in plain or flanged versions, fit to the base using a tongue-and-groove construction to give protection against dust or moisture ingress (to IP54). The cases are available in black or grey, are moulded in UL94V-0 flame retardant ABS plastic and feature an attractive satin textured finish.