The 8145-20B Defrost Timer with Bracket is a mechanical, time-initiated defrost control designed for commercial refrigeration equipment. It automatically manages defrost cycles by switching the system between cooling and defrost modes, helping prevent excessive ice buildup on the evaporator and maintaining reliable operation. Operating on 208–240V / 60Hz, this timer allows for adjustable defrost frequency and duration, making it suitable for a wide range of commercial applications. The heavy-duty internal contacts and metal enclosure are built to withstand demanding refrigeration environments. This defrost timer is commonly used in commercial freezers, walk-in coolers, refrigerated display cases, and restaurant refrigeration systems. The included mounting bracket ensures quick and secure installation for technicians and service professionals.