The NOR40A and NOR45A Cantilever Beam Barriers display the best combined vehicle and intruder protection available. Norshield beam barriers are tested and certified by the Department of State. The NOR45A holds the highest available K12 rating, capable of stopping a 15,000 lb vehicle traveling at a speed of 50 mph while the NOR40A is K-4 rated. The NOR45A showcases the strongest force protection of any beam barrier inside an expert design that optimizes functionality, reliability, and operation.