ABB ACH550-VCR-03A3-4F267 AC Variable Frequency Drive

ABB ACH550-VCR-03A3-4F267 AC Variable Frequency Drive with E-Clipse bypass is an HVAC‑oriented variable‑speed drive for regulating 3‑phase motors. It accepts 380–480 VAC three‑phase input and delivers 1.5 HP (≈1.1 kW) of output with a current rating of up to 3.3 A, and it carries a short‑circuit current rating of 100 kA. The VCR designation indicates an integrated E‑Clipse bypass option, providing a mechanical bypass path for the motor when the drive is offline or in fault conditions. The -03A3-4F267 variant identifies the specific configuration and firmware/lot for this model. This ABB ACH550 device is commonly used to control fans, pumps, and air‑handling equipment in commercial or light industrial HVAC systems, enabling smooth speed control, reduced energy use, and protection features typical of ABB HVAC drives, while remaining compatible with standard control signals used in building automation. ABB’s ACH550 family is designed for easy commissioning with straightforward parameter sets and built‑in diagnostics to help verify operation quickly, and these drives are commonly deployed in rooftop units, air handlers, and packaged units where reliable HVAC duty is essential.