The Emerson Head Amp PCB Assembly A43901A330 Industrial Control Board is a high-quality unit made in the United States by Emerson. This industrial control board, with a reference number of 4100, comes in a quantity of 5 units. Designed for HVAC and refrigeration systems, this PCB assembly is a crucial component for controlling and regulating the operation of these systems, ensuring optimal performance and efficiency. Ideal for businesses and industrial applications, this product from Emerson offers reliability and expertise in the field of HVAC and refrigeration controls.