The 1423785-1 is a Potter & Brumfield KUP Series 3-pole enclosed panel plug-in relay designed for industrial and commercial applications. It features a 120VAC coil operating at 50/60 Hz, with 3 form C (changeover) contacts and AgCdO contact material rated for 10A at 4.75mm quick connect/solder terminals. The relay exhibits high dielectric strength with 1200Vrms between open contacts, 2200Vrms between contact and coil, and 2200Vrms between adjacent contacts, along with an initial insulation resistance of 100MO at 500VDC. It operates reliably across an ambient temperature range of -45°C to +45°C and is housed in a socket mount plain case compatible with various socket options for panel, DIN rail, or PCB mounting. This relay is ideal for vending machines, commercial sewing equipment, robotics, timers, welding systems, HVAC controls, and medical applications requiring dependable switching performance.