ABB ACH180-04S-038A-4 — 25HP Open Type Variable Frequency Drive
The ABB ACH180-04S-038A-4 is a purpose-built HVAC variable frequency drive (VFD) engineered to deliver precise speed control for commercial fans, pumps, and air handling equipment. Rated at 25 horsepower with a 3-phase, 480VAC input, this open-type drive is designed for panel or enclosure mounting in demanding mechanical room environments.
Key Features
- 25 HP (18.5 kW) output power rating
- 3-phase, 480VAC input voltage
- Open chassis (IP00/IP20) construction — designed for enclosure or panel mounting
- Built-in EMC filter for reduced electrical noise and compliance with installation requirements
- Integrated PID control for direct sensor-based feedback loops (pressure, temperature, flow)
- HVAC-optimized control algorithms including energy-saving quadratic V/Hz mode
- Multiple communication protocol support including BACnet MS/TP, Modbus RTU, and N2 — ideal for building automation system (BAS) integration
- Built-in bypass-ready design for easy integration with external bypass contactors
- Safe Torque Off (STO) safety function for machine safety compliance
- Onboard real-time clock (RTC) for scheduling and time-stamped fault logging
- Keypad with plain-text display for intuitive commissioning and diagnostics
- Auto-restart and flying start capability for uninterrupted operation
- Energy optimizer function to maximize motor efficiency at partial loads
HVAC Applications
- Supply and return air fans (AHUs, RTUs)
- Cooling tower fans
- Chilled water and condenser water pumps
- Variable air volume (VAV) system fans
- Exhaust and ventilation fans
Why Choose the ABB ACH180 Series
The ACH180 series is ABB’s dedicated HVAC drive platform, combining energy savings, reliable motor protection, and seamless BAS connectivity in a compact, installer-friendly package. The open-type enclosure allows for flexible integration into custom electrical panels or mechanical room switchgear, making it a preferred choice for mechanical contractors and controls engineers on commercial and industrial HVAC projects.
Product Specifications
- SKU / Part Number: ACH180-04S-038A-4
- Brand: ABB
- Horsepower: 25 HP
- Input Phases: 3-Phase
- Input Voltage: 480VAC
- Enclosure Type: Open Type (IP00/IP20)
- Drive Series: ACH180 HVAC
