The ABB CR123H172A is an Overload Relay Heater designed for use with CR101 Starters. It provides reliable thermal overload protection, ensuring optimal performance and safety for your electrical systems. This high-quality heater is an essential component for maintaining the efficiency and longevity of your equipment, featuring robust construction and precise engineering for dependable management of thermal overload in various industrial applications..This product is an Overload Relay Heater with the catalog number CR123H172A. It is designed for use with CR101 Starters and is part of the NEMA Contactor & Starter Accessories product line. The heater is packaged as a single unit. Its dimensions are 1 inch in width, 1.75 inches in depth/length, and 0.5 inches in height, with a gross weight of 0.025 lb. The product net weight is also 0.025 lb. The Customs Tariff Number is 85365040. It is classified under eClass V11.1 as 27370905 and ETIM 6, 7, and 8 as EC001037 (Motor starter/Motor starter combination). The UNSPSC code is 39121521. It is designated for Business To Business use.