Schneider Altivar 21 ATV21HD45N4 Variable Frequency Drives

Description

The ATV21HD45N4 is a high-performance variable speed drive from the Altivar 21 range, engineered for precise motor control in industrial applications. Rated for 45KW (60HP) output power with a supply voltage of 480V, this drive is designed to optimize energy efficiency and operational reliability for HVAC and pump systems. The unit includes an integrated EMC filter class A to minimize electromagnetic interference and is housed in an IP20 rated enclosure, providing protection suitable for controlled environment electrical cabinets. The ATV21HD45N4 is specifically calibrated to handle the varying load demands of centrifugal equipment, making it a robust choice for industrial ventilation and fluid management systems.

Features

• Optimized for 45KW (60HP) motor control applications.
• Integrated EMC filter class A for enhanced signal integrity.
• Rated for 480V three-phase input power.
• IP20 ingress protection rating for cabinet-mounted installations.
• Dedicated Altivar 21 subrange architecture for reliable speed regulation.

Applications

• HVAC system control (fans and blowers).
• Industrial pump management and fluid distribution.
• Centrifugal machine speed regulation.
• Energy-efficient motor operation in commercial facilities.

Technical Specifications

Installation Guidelines

• Mounting: Install the ATV21HD45N4 in an upright position within a ventilated electrical enclosure to prevent overheating.
• Clearance: Maintain minimum spacing requirements around the unit to ensure adequate airflow for the internal cooling fans.
• Grounding: Ensure a high-integrity earth connection is made to the drive’s grounding terminal to maintain compliance with EMC standards.
• Wiring: Use shielded cables for motor connections to maximize the effectiveness of the internal EMC filter.
• Environmental: Ensure the installation site remains within the specified temperature and humidity limits to avoid derating or premature component failure.