Ingersoll Rand RSa4i-A125 5HP 230v 1 Phase Rotary Screw Compressor, 21cfm 125psi, 120 Gal Tank

Ingersoll Rand RSa4i-A125 5HP 230v 1 Phase Rotary Screw Compressor, 21cfm 125psi, 120 Gal Tank

The Ingersoll Rand RSa4i-A125 120 Gallon is a 5 HP fixed speed rotary screw air compressor rated to produce 21cfm at 125psi. The compressor operates on 230v single phase power. This is a tank mounted design that includes a 120 gallon horizontal receiver tank. 

Built around Ingersoll Rand’s proven rotary screw platform, the RSa4i-A125 120 Gallon delivers strong airflow, dependable operation, and improved efficiency in a compact footprint. The integrated airend reduces internal piping and potential leak points, while the premium efficiency motor and fixed speed load/no-load controls provide a dependable compressed air solution for steady shop air demand. With 21 CFM on the 125 PSI configuration, this compressor is well suited for powering air tools, machinery, workstations, and general plant air systems.

The RSa4 5hp rotary screw compressor is engineered for long-term reliability and easier service. The compressor package includes an intuitive XS-110 touchscreen controller, automatic start/stop operation, event logging, Modbus communication capability, and sequencing for systems using multiple compressors. Its compact cabinet design, quiet enclosed operation, and service-friendly layout make it easier to install, monitor, and maintain compared to traditional open air compressor packages.

This specific version of the RSa4 does not include an air dryer. Separate air dryers and filtration are available for customers who want the compressor package separate from the dryer system. This setup is ideal for users who already have air treatment in place.

Note - The compressor utilizes a 5hp main drive motor. The model number references R4 which is the killowat rating for a 5hp package.  

XS-110 Controller Information:

• 110mm touchscreen display: Provides a clear, easy-to-use interface for checking compressor status, adjusting settings, and reviewing system information.
• Automatic start/stop control: Helps reduce unnecessary run time by allowing the compressor to shut down when air demand is low.
• Manual and automatic load/unload control: Gives the compressor flexible control over air production to better match system demand.
• Event and operating data monitoring: Helps operators review alarms, warnings, and operating history so issues can be identified faster.
• Integrated system control: Allows the controller to manage compressor package functions from one central interface for simpler operation.
• Sequencing capability for multiple compressors: Helps coordinate multiple compressor systems so units can work together more efficiently.
• Compressor protection logic: Continuously monitors key operating conditions and can take action when abnormal conditions are detected to help reduce downtime.

Features and Benefits: RSa4i-A125 5HP Rotary Screw Air Compressor

• 5 HP / 4 kW fixed speed rotary screw air compressor
• 230v Single Phase Main Drive Motor
• 21 CFM rated capacity at 125psi
• 120 Gallon receiver tank
• Fully integrated airend designed to reduce leak points and improve efficiency
• Load/no-load control with automatic start/stop
• IP55 Premium efficient main drive motor
• Star-delta starter to help reduce starting current
• XS-100 touchscreen controller with compressor monitoring and protection
• RS-485, Ethernet, USB, and Modbus communication capability
• Event logging for warnings, trips, E-stop events, power-up events, and more
• Sequencing capability for up to 8 compressors
• Air-cooled package designed for continuous operation in demanding shop environments