12/14/2018 Type 4, 4X Polycarbonate Pushbutton Enclosure (1554 PB Series) - Hammond Mfg. Quality Products. Service Excellence. Type 4, 4X Polycarbonate Pushbutton Enclosure 1554 PB Series Standards IP66 NEMA 4, 4X, 6, 6P, 12 & 13 UL94 5V Construction Electronic instrument enclosures, designed for mounting printed circuit boards or DIN rail mounted components. The polycarbonate material carries a UL flammability rating of UL94 5V and is suitable for outdoor use. Lid and mounting holes are located outside of the gasket seal. Lid is secured with self captivating M4 stainless steel machine screws (included), threaded into integral stainless steel bushings (for repetitive assembly & disassembly). Heavy duty 16 gauge galvanized steel panels available (see chart) All stainless steel hardware to avoid corrosion caused by dissimilar metals. Gasket is a preformed, high temperature U.L. listed silicone rubber. Gasket is replaceable. Gasketed lid with two piece tongue & groove construction provides protection against access of oil, dust and water. Internal DIN rail mounting tabs. Threaded (M3) integral brass inserts & standoffs designed for M3.5 or 6 self tapping screws for P.C. board or inner panel mounting in all but the smallest size. Vertical P.C. card guides (for 1.5 mm thick P.C. boards) are molded in all but the smallest size Finish Color is light gray (RAL 7035) Accessories Optional Inner Panel Heavy duty panels for mounting components Galvanized 16 ga. steel. Includes mounting hardware. Optional Mounting Feet Part No. 1554FT Gallery 12/14/2018 Type 4, 4X Polycarbonate Pushbutton Enclosure (1554 PB Series) - Hammond Mfg.