The 4-1393766-0, an R10 series Potter & Brumfield relay, is a 4-pole, double-throw (4PDT) signal relay designed for versatile application needs. It operates with a 24VDC coil that has a 700 Ω resistance and a rated power consumption of 900 mW. The single silver contacts are rated for 2A at 120VAC or 28VDC, housed within a non-sealed, dust-protected polycarbonate case featuring solder/plug-in terminals and a #3-48 mounting stud. This relay's robust design, with an operating temperature range of -55°C to +75°C, makes it suitable for demanding environments such as traffic controls, test equipment, and audio systems.