The HBL400MBK is a 400 A male plug connector designed for high-current power distribution in industrial and commercial applications. This single-pole device features a black color and is engineered to handle amperage up to 400 A, making it suitable for heavy-duty electrical systems. The plug accommodates wire sizes ranging from #4 to 4/0 AWG, with ampacity ratings of 140 A (#4), 190 A (#2), 300 A (2/0), and 405 A (4/0) based on NEC Table 400.5(B) at 90 °C. Dimensional specifications include an overall length of 6.74 inches (171.2 mm), width of 1.47 inches (37.3 mm), depth of 1.48 inches (37.6 mm), and a connection depth of 4.78 inches (121.4 mm). This connector is commonly used in temporary power distribution, generator connections, and industrial power systems where reliable high-current connections are essential.