The 1873139 is a 10-position plug component designed for printed-circuit board connections. It features a tool-free, time-saving push-in spring connection method and is rated for a nominal current of 12 A and a voltage of 320 V (III/2). This female connector has a standard 5.08 mm pitch, tin-plated contacts, and supports conductor cross-sections from 24 to 12 AWG. Key advantages include intuitive use via a color-coded actuation lever, an integrated test option for convenient diagnostics, and compatibility with the MSTB 2,5 connector range.