The WHITE RODGERS 90-172S1 is a definite purpose contactor designed for use in central air conditioning and heating equipment. It offers features like any position mounting, an interchangeable mounting plate, and a low wattage coil, making it suitable for various applications. The contactor's double break contacts ensure reliable make and break performance. It is built with high-quality electrical-grade thermosetting resin for insulating material and operates within a temperature range of -40°F to 150°F. Agency listings include U.L. and C.S.A. certifications, ensuring compliance with industry standards.