NTE 524V27 is a Control Relay, Series 523. It is a single-pole, double-throw type, designed for industrial or OEM applications. The frame is rated for 16 AMPs or 10HP. Voltage rating is 277VAC with silver/cadmium oxide contacts. The relay is UL, CSA and NOM certified. It is suitable for switching, controlling and protecting motor circuits, such as individual motor starters and lighting systems. It has a wide variety of functions, including normally open, normally closed, and combination open/closed modes of operation. Features include high dielectric strength, minimal contact bounce and long life. The adjustable coil winding helps in providing optional control timing characteristics.