Schneider Electric ATV21HU40N4 Altivar 21 HVAC VFD 4kW
Schneider Electric ATV21HU40N4 Altivar 21 HVAC VFD 4kW

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Schneider Electric

Schneider Electric ATV21HU40N4 Altivar 21 HVAC VFD 4kW

SKU: ATV21HU40N4
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$2,596.88
In stock (96 units)
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Schneider Electric ATV21HU40N4 Altivar 21 HVAC VFD, 4kW, 480V 3-Phase, IP20

The Schneider Electric ATV21HU40N4 is an Altivar 21 (ATV21) variable-speed drive engineered for HVAC pumps and fans, rated 4 kW (5 hp) on a 380…480 V three-phase supply with a built-in EMC filter (Class A) and IP20 protection. Technical data sourced from the official Schneider Electric datasheet (Altivar 21 4 kW platform). Supplied by SHLY-PLC, an independent industrial automation distributor; each unit is visually inspected and functionally checked before shipment.

Key Features

  • Model: ATV21HU40N4 — Altivar 21 HVAC VFD
  • Motor Power: 4 kW (5 hp)
  • Supply: 380…480 V AC three-phase, 50/60 Hz
  • EMC: built-in Class A filter · IP20
  • Lifecycle: Discontinued — replaced by ATV212

Technical Specifications

Official Schneider Electric Product Data — ATV21HU40N4

Technical Specifications
Product / Range Altivar 21 (ATV21) · variable-speed drive for HVAC pumps and fans
Motor Power 4 kW (5 hp)
Supply Voltage 380…480 V AC -15…+10 % · three-phase · 50/60 Hz
Line Current 6.4 A at 480 V · 8.1 A at 380 V
Max Continuous Output Current 9.1 A at 380 V · 9.1 A at 460 V
Max Transient Current 10 A for 60 s
Apparent Power 6.9 kVA at 380 V
Output Frequency 0.5…200 Hz
Switching Frequency 12 kHz nominal (6…16 kHz adjustable, derating above)
Speed Range 1…10
Communication Modbus (9600/19200 bps)
EMC Filter Class A, integrated
Degree of Protection IP20 / IP21 / IP41 (per mounting) · EN/IEC 60529, 61800-5-1
EAN / GTIN 3389119209755
Availability Status Discontinued (production ended 31 Dec 2012)
Model note: ATV21HU40N4 is an Altivar 21 HVAC variable-speed drive, 4 kW (5 hp), 380…480 V three-phase (N4 = 400/480 V class), built-in EMC Class A filter, IP20, Modbus. This is a variable-speed drive, not a soft starter. The ATV21 range was the HVAC variable-torque drive platform.
Recommended replacement: Schneider Electric designates ATV212HU40N4 — Altivar 212 VFD, 4 kW, 5 hp, 480 V three-phase, EMC, IP21 as the successor to the discontinued ATV21 4 kW model (Altivar 21 → Altivar 212 migration). Contact us for ATV212 migration support.

Compatibility & Cross-References

Altivar 21 series (ATV21H/N, 0.75…75 kW HVAC drives). This listing is provided by an independent industrial automation distributor; brand names and part numbers are used for product identification only.

Applications

  • HVAC variable-torque loads — fans, pumps, heating, ventilation and air-conditioning
  • Fluid-management and tertiary-sector building applications
  • Spare/obsolete replacement for installed ATV21 installations

Warranty & Shipping

  • Availability: Stock and condition vary; contact us for real-time stock status and tested condition.
  • Inspection & testing: each unit is visually inspected and functionally checked before packing.
  • Delivery: orders are processed within 2-4 business days after payment confirmation; standard worldwide delivery about 5-8 business days, express available, free shipping over $500.

Warranty: 12-month seller warranty provided by SHLY-PLC. See our Return Policy for coverage and claims.

Independent supplier: Schneider Electric part ATV21HU40N4 is supplied by SHLY-PLC, an independent industrial automation distributor. Brand names and part numbers are used for product identification and remain the property of their respective owners; this listing is not affiliated with, sponsored or endorsed by the manufacturer.

Frequently Asked Questions

Q: What is the ATV21HU40N4?

A: A Schneider Electric Altivar 21 HVAC variable-speed drive, 4 kW (5 hp), 380…480 V three-phase, IP20.

Q: Is it still in production?

A: No — production ended 31 Dec 2012; successor is ATV212HU40N4.

Q: Is it a VSD or soft starter?

A: A variable-speed drive (HVAC variable-torque).

Q: What EMC/protection?

A: Built-in EMC Class A filter; IP20/IP21/IP41 per mounting.

ATV21HU40N4 · Altivar 21 HVAC VFD · Technical reference data · Independently supplied by SHLY-PLC

Standard International (tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders of $500 or less; free on orders over $500.

Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.

Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Remote-area and overweight surcharges, where applicable, are shown before checkout.

Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.

This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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