ABB RETA-01 Cooling Unit | Retrofittable Cabinet Cooler Specs

ABB RETA-01 air-to-air heat exchanger. For ACS880 drive cabinets, 1000W cooling, IP54, low maintenance. Retrofittable thermal management.

ABB RETA-01 Air-to-Air Heat Exchanger Unit

The ABB RETA-01 is a retrofittable cooling unit designed as a modular accessory for ABB drive cabinets, particularly the ACS880 series. It provides efficient thermal management by exchanging heat between the closed internal air of the cabinet and the external ambient air, keeping sensitive electronics within safe operating temperatures without allowing dust ingress.

Key Features

• Retrofittable Design:​ Can be added to existing ACS880 drive cabinets to enhance cooling capacity.

• Closed-Loop Cooling:​ Maintains IP54 protection of the cabinet by separating internal and external air streams.

• Low Maintenance:​ No filters to clean; uses a refrigerant circuit for efficient heat transfer.

• Plug-and-Play:​ Designed for straightforward installation and connection to the drive cabinet's control system.

Technical Specifications

Function & Application

The RETA-01 is installed on top of an ACS880 cabinet. It circulates the warm internal cabinet air through one side of a heat exchanger, while ambient air is blown across the other side by separate fans. A refrigerant circuit transfers the heat from the internal air to the external air, cooling the internal air which is then recirculated inside the cabinet. This is ideal for dusty or dirty environments where a standard filter fan unit is not sufficient.

Typical Applications

• Retrofitting existing ACS880 drives in environments with high ambient temperatures.

• Applications in dusty, humid, or corrosive atmospheres (e.g., cement, mining, paper mills).

• Extending the life and reliability of drive components by maintaining optimal internal temperature.

Critical Compatibility & Selection Notes

1. Cabinet Specific:​ The RETA-01 is designed for specific ACS880 cabinet frame sizes​ (e.g., R8i). It is not universal. Always verify the exact compatibility with your cabinet's model number and dimensions.

2. Cooling Capacity:​ The 1000W rating is under specific conditions. Ensure the total heat dissipation of all components inside your cabinet is within this capacity, considering the maximum ambient temperature.

3. Installation Space:​ Requires sufficient clearance above the cabinet for installation and airflow.

Note: Specifications are based on general product data. For final selection, detailed mechanical dimensions, electrical connection diagrams, and cabinet compatibility lists, consult the official ABB RETA-01 Installation and Operation Manual​ or the ACS880 Cabinet Accessories Catalog.