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Schneider Electric ATV21WU40N4 Altivar 21 VFD | 4kW 5HP 480V

Schneider Electric ATV21WU40N4 Variable Speed Drive - 4kW 5HP

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ManufacturerSchneider Electric

Part numberATV21WU40N4

Power Rating 4 kW / 5 hp

Supply Voltage 380-480 V AC

Line Current 6.4 A (480 V)

Enclosure IP54

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Veteran-owned

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IP54 Enclosure EMC Class A Filter Modbus Communication Energy Saving Features Designed for HVAC Voltage/Frequency Control

Product description

The Schneider Electric ATV21WU40N4 is a variable speed drive from the Altivar 21 series, designed for 3-phase asynchronous motors. It features a 4kW (5HP) power rating and operates at 480V with an IP54 enclosure, offering protection against dust and water ingress. This drive includes an EMC Class A filter for electromagnetic compatibility.

Optimized for HVAC applications, this VFD is particularly well-suited for controlling pumps and fans. It utilizes a voltage/frequency ratio motor control and supports Modbus communication for seamless integration into building automation systems. Its compact design and energy-saving features contribute to reduced operational costs.

Stanlo Automation, your veteran-owned source for industrial automation parts, offers the Schneider Electric ATV21WU40N4. We provide reliable, hard-to-find components with prompt delivery to keep your systems operational.

Technical specifications

Power Rating	4 kW / 5 hp
Supply Voltage	380-480 V AC
Line Current	6.4 A (480 V)
Enclosure	IP54
EMC Filter	Class A
Motor Control	Voltage/Frequency Ratio
Communication	Modbus

Common applications

HVAC Systems

Pumps

Fans

Ventilation

Building Automation

General Machinery

Compatible systems

Compatible with Modbus communication protocol for integration into SCADA and Building Management Systems.

Also known as

Altivar 21 VFD ATV21 4kW Drive Schneider 480V VFD

Replaces / compatible with

The ATV21 series is a legacy product, and while specific direct replacements might vary, newer Altivar models offer advanced features and compatibility.

Technical note

Expert tip

While rated IP54, ensure the drive is installed in a location protected from direct water jets and excessive dust accumulation for optimal longevity.

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Frequently asked questions

What are the typical applications for the Schneider Electric ATV21WU40N4 VFD?

The ATV21WU40N4 is primarily designed for HVAC applications, including the control of centrifugal and piston pumps, fans, and ventilation systems. Its IP54 rating and EMC filter make it suitable for environments where dust and moisture may be present.