The AllPoints Foodservice Parts & Supplies 421445 Defrost Timer is designed for efficient temperature management in foodservice equipment. Operating at 120V, this timer features a switching mechanism with 1 normally open (N.O.) and 1 normally closed (N.C.) contact, capable of handling up to 40A and 2 horsepower. It includes four tripper pins for customizable defrost cycles, allowing for 1 to 6 cycles per day. The adjustable defrost duration ranges from 4 to 110 minutes, with settings available in 2-minute increments, ensuring precise control over defrosting processes. For those seeking a substitute, consider item #42-1802.