ABB ACH550-CC-04A1-4K452P902 Variable Frequency Drive

ABB ACH550-CC-04A1-4K452P902 is a 2 HP, 3-phase HVAC drive designed for 460 VAC operation, providing precise speed control for fans and pumps in commercial and light‑industrial HVAC systems. The CC designation signifies Classic Bypass with a circuit‑breaker protected bypass path, pairing a reliable drive with a bypass option to maintain motor operation during service. The order code includes a K452 LonWorks communications adaptor, enabling straightforward integration with building management systems and other control networks. Rated for 460 V three‑phase service, the unit is well suited to standard commercial power distributions and installations such as air handlers, rooftop units, and circulating pumps where smoother start/stop and adjustable speed can reduce energy use and mechanical wear. The ACH550 family emphasizes compact form factor and flexible control, with configurable ramp times, torque and speed limits, and fault handling to tailor performance to specific loads and duty cycles while aligning with common HVAC design practices.