The 218BR is an 8-pin octal socket assembly designed for relay applications, featuring a 10A/150V electrical rating and #4-40 zinc-plated screws with clear chromate finish and wire clamps. It accommodates wire sizes from 4 to 22 AWG and is mounted on a TK2(D) SNAPTRACK channel. The socket has a dimension A of 3.16 inches (80.3 mm), dimension B of 1.13 inches (28.7 mm), and dimension C of 1.50 inches (38.1 mm), making it suitable for compact panel and track-mounted installations. This socket is compatible with various relay series including Tyco Electronics SCB, SCC, SCE, SRC, SSC, SST, and VMA relays, as well as P&B and SCHRACK relay series, providing reliable interconnection for industrial control and automation systems.