MS-20-140-Y is a 20-terminal barrier block designed to interpose barriers between terminals, yielding higher electrical ratings and providing additional protection against frayed wire shorting. The block features a molded monoblock construction with general purpose phenolic insulation (UL Rated 94V-1), brass eyelets with nickel plating, and steel screws with nickel over copper flash plating. It is rated for 250 VAC RMS maximum voltage, 15 Amps maximum current, and 3750 watts per terminal, with an operating temperature range of -55°F to +300°F. The product is RoHS compliant and UL Recognized (File E61245) and CSA certified (LR 67357), making it suitable for industrial control panels, terminal blocks, and equipment requiring robust electrical isolation and wire management.