Schneider Electric Altivar 21 ATV21HU15M3X Variable Frequency Drive

Description

The ATV21HU15M3X is a compact Variable Frequency Drive (VFD) from the Altivar 21 series, designed for the efficient speed control of three-phase asynchronous motors. Rated for 1.5 kW (approximately 1.5 HP) and operating on 240V supply, this drive is specifically engineered for HVAC (Heating, Ventilation, and Air Conditioning) applications, such as pumps and fans. The drive features an IP20-rated enclosure, providing protection against solid objects while maintaining a small footprint for integration into control cabinets. It helps optimize motor performance, reduce energy consumption, and decrease mechanical stress on connected machinery through precise frequency regulation.

Features

• Optimized for HVAC applications (pumps and fans)
• Power rating: 1.5 kW (1.5 HP)
• Input voltage: 240V AC
• Compact IP20-rated housing
• Precise speed control for asynchronous motors
• Energy-efficient operation through optimized motor regulation

Applications

• Centrifugal pumps and fan control
• Building ventilation systems
• Commercial air conditioning units
• Industrial process fluid movement
• Retrofitting and maintenance of existing Altivar 21 systems

Technical Specifications

Installation Guidelines

• Mounting: Mount the drive vertically in a well-ventilated enclosure. Ensure the required minimum clearances around the unit are maintained to allow for adequate airflow and heat dissipation.
• Environmental: Ensure the installation environment is free from conductive dust, humidity, and corrosive gases. The IP20 rating requires a protected cabinet environment.
• Wiring: Connect the 240V input supply to the L1, L2, L3 terminals and the motor leads to the U, V, W terminals. Ensure proper grounding to the chassis PE point to reduce electrical interference.
• Parameterization: Use the integrated keypad or remote programming interface to set the V/f (Voltage/Frequency) characteristics and acceleration/deceleration ramps to suit the specific application load.