Enhance your ABB CR101 starter with the CR123H099A Overload Relay Heater. Designed for NEMA starters, this heater unit ensures reliable motor protection. Packaged as a single unit for convenience, it's a crucial accessory for maintaining the performance and safety of your electrical systems..The ABB CR123H099A is an overload relay heater designed for CR101 starters. It has a maximum motor full-load ampere rating of 0.86A. The unit is packaged as a single piece with dimensions of 1 inch in width, 1.75 inches in depth, and 0.5 inches in height, weighing 0.025 lb.