Schneider Electric ATV21HU22N4 Altivar 21 Variable Frequency Drive

Description

The ATV21HU22N4 is a 2.2 kW (3 HP) industrial frequency controller designed to deliver reliable motor speed control in demanding applications. This variable frequency drive provides precise speed regulation and energy efficiency for automation systems utilizing a 480V three-phase input. Built with an integrated EMC Filter Class A, the ATV21HU22N4 ensures compliance with electromagnetic compatibility standards and minimizes interference in industrial environments. Housed in an IP20-rated enclosure, it is engineered for panel-mounted installations where space efficiency and consistent performance are essential. Maintenance engineers and system integrators rely on this controller for dependable motor management in legacy architectures.

Features

• 2.2 kW (3 HP) power rating for three-phase 480V operation
• Precise speed regulation and energy-efficient motor control
• Integrated EMC Filter Class A for reduced electromagnetic interference
• IP20-rated enclosure optimized for standard panel mounting
• Proven solution for established industrial automation systems

Applications

• HVAC systems, air handlers, and ventilation fans
• Pumping stations and water treatment facilities
• Conveyor systems and material handling equipment
• Industrial compressor and fan control

Technical Specifications

Installation Guidelines

• Ensure proper vertical panel mounting within an enclosure that accommodates the IP20 rating and provides adequate airflow.
• Route power and control cables separately to maintain EMC Filter Class A performance and minimize noise.
• Verify correct torque on all terminal connections prior to system startup.