The EATON Cutler-Hammer NQB A803 RC is a relay contactor with a built-in starter and one auxiliary contact. This device is designed for reliable operation in various industrial applications, providing efficient control of electrical loads. Constructed from high-quality materials, it meets ANSI standards for safety and performance. The compact design allows for easy installation in control panels, making it suitable for automation systems. With its robust construction, this relay contactor ensures long-lasting performance in demanding environments.