This ADP 110001054 is a single point breaker kit. It is used to all models with 3-stage circuit breakers. It is also designed to control the electrical flow within the HVAC unit. The three breakers protect the unit from power surges and overloads. ADP (Advanced Distributors Products) has a large lineup HVAC parts and equipment designed to match for your heating and air conditioning needs. ADP is a leading manufacturer of high-quality indoor HVAC equipment across America. Here at PlumbersStock, we guarantee that you have access to the highest quality products and resources at very affordable prices. We pride ourselves in striving for excellence in every aspect of what we do.