The sizes are 80 x 80 x 45 and 60mm and 120 x 120, 160 x 160 and 200 x 200 in heights of 45 and 70mm. All versions are available in black and RAL 7035 grey.
Rounded corners and top face give a modern smooth style, and environmental sealing allows the enclosures to protect the housed equipment against dust and water entry in dirty and damp environments. The 1557 can be used as a free-standing enclosure when fitted with the supplied feet, or it can be wall-mounted with either four visible fixings or two hidden ones. A PDF showing the alternative wall mountings can be downloaded here.
PCB standoffs are provided in both the lid and base. The enclosure is assembled with corrosion-resistant M4 stainless-steel machine screws, which are threaded into integral stainless-steel bushings for repetitive assembly and disassembly. The IP68 polycarbonate versions are UV stabilised for outdoor use with a UL94-5VA rating, and the IP66 ABS versions have a flammability rating of UL94-HB for indoor use.