ACH550UH03A34 frequency converter  

ABB ACH550UH03A34 is a specialized frequency converter for HVAC systems, commonly used for speed regulation of fans and water pumps, and commonly used for equipment maintenance and replacement
Product Features
1. Built in PID, capable of automatically stabilizing voltage and flow rate
2. Equipped with harmonic suppression to reduce power grid interference
3 Supports building communication protocols such as BACnet
4 layers of protection, intuitive and easy to check fault codes
5 wall mounted installation, simple debugging operation
Product Specifications
Three phase 380-480V AC input
Rated output current of 3.3A
3 compatible with 0.75kW asynchronous motor
4. Integrated EMC filtering
5 built-in digital and analog IO
Application Areas
1. Central air conditioning fan speed regulation
Control of cooling water circulation pump
3 Cooling tower, ventilation fan drive
4 Industrial water supply pump system
5 Replacement of HVAC equipment spare parts
This ACH550UH03A34 is energy-saving and stable, and is a commonly used speed control spare part for HVAC automation equipment maintenance