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Schneider Electric ATV21HD37N4 — AC Drive (VFD) 480V

Schneider Electric ATV21HD37N4 AC Drive (VFD) 480V, 37 kW

MPNATV21HD37N4
Obsolete

Schneider Electric Altivar 21 ATV21HD37N4 AC drive, 37 kW, 380-480 V 3-phase, 54.4 A line current, IP20, CE marked.

$5,698.36Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ATV21HD37N4 — Identification
ParameterValue
Product typeVariable speed drive
Product range / familyAltivar 21
ATV21HD37N4 — Power & Output
ParameterValue
Motor power (kW)37 kW
Max. transient current86.9 A 60 s
Apparent power52 kVA 380 V
ATV21HD37N4 — Input / Supply
ParameterValue
Input line current54.4 A 480 V 68.9 A 380 V
ATV21HD37N4 — Control & Performance
ParameterValue
Output frequency range0.5...200 Hz
Asynchronous motor control modesQuadratic voltage/frequency ratio Constant voltage/frequency ratio with automatic IR compensation Energy saving ratio Current flux vector control (FVC) without speed feedback Constant voltage/frequency ratio
ATV21HD37N4 — Protection & EMC
ParameterValue
Integrated EMC filter classClass A EMC filter integrated
EMC immunity tests1.2/50 µs - 8/20 µs surge immunity test level 3 conforming to IEC 61000-4-5 Conducted radio-frequency immunity test level 3 conforming to IEC 61000-4-6 Electrical fast transient/burst immunity test level 4 conforming to IEC 61000-4-4 Electrostatic discharge immunity test level 3 conforming to IEC 61000-4-2 Radiated radio-frequency electromagnetic field immunity test level 3 conforming to IEC 61000-4-3 Voltage dips and interruptions immunity test conforming to IEC 61000-4-11
ATV21HD37N4 — Mechanical & Cooling
ParameterValue
IP degree of protectionIP20 on upper part without blanking plate on cover EN/IEC 60529 IP20 on upper part without blanking plate on cover EN/IEC 61800-5-1 IP21 EN/IEC 60529 IP21 EN/IEC 61800-5-1 IP41 on upper part EN/IEC 60529 IP41 on upper part EN/IEC 61800-5-1
Acoustic noise level64 dB 86/188/EEC
Assembly / installation styleWith heat sink
ATV21HD37N4 — Environmental
ParameterValue
Operating ambient temperature14...104 °F (-10...40 °C) (without derating) 104...122 °F (40...50 °C) (with derating factor)
Relative humidity5...95 % without condensation IEC 60068-2-3 5...95 % without dripping water IEC 60068-2-3
Storage / transport temperature-13...158 °F (-25...70 °C)
Pollution degree3 IEC 61800-5-1
Vibration resistance1 gn (f= 13...200 Hz) conforming to EN/IEC 60068-2-8 1.5 mm (f= 3...13 Hz) conforming to EN/IEC 60068-2-6
ATV21HD37N4 — Approvals
ParameterValue
Certifications & markingCE
Standards complianceIEC 61800-3 environments 1 category C2 EN 61800-3 environments 1 category C3 IEC 61800-5-1 IEC 61800-3 environments 2 category C1 IEC 61800-3 environments 2 category C2 IEC 61800-3 category C3 IEC 61800-3 environments 2 category C3 IEC 61800-3 category C2 IEC 61800-3 UL Type 1 EN 61800-3 environments 1 category C2 EN 61800-3 environments 2 category C3 EN 61800-3 category C2 IEC 61800-3 environments 1 category C1 EN 61800-3 category C3 IEC 61800-3 environments 1 category C3 EN 61800-5-1 EN 61800-3 environments 1 category C1 EN 61800-3 environments 2 category C1 EN 55011 class A group 1 EN 61800-3 environments 2 category C2 EN 61800-3
ATV21HD37N4 — Communication
ParameterValue
Communication protocolsModbus

Product details

37 kW VFD for pump and fan duty

The ATV21HD37N4 is a 37 kW Altivar 21 AC drive from Schneider Electric, designed for variable-torque loads such as pumps and fans. It accepts a 380-480 V three-phase supply and delivers a line current of 54.4 A at 480 V (68.9 A at 380 V). The drive includes a built-in Class A EMC filter and carries CE marking, complying with IEC 61800-3 for EMC environments and IEC 61800-5-1 for safety. This simplifies panel integration in European and other CE-regulated markets.

Panel fit and mounting dimensions

The drive measures 21.7 inches high by 9.4 inches wide by 4.4 inches deep (550 x 240 x 113 mm). The vertical mounting orientation is specified within ±10 degrees. The assembly includes a heat sink for thermal management, and the enclosure is rated UL Type 1 for indoor use.

Switching frequency and torque capability

The switching frequency is adjustable from 6 to 16 kHz, with derating required above 8 kHz. This allows the user to trade off audible noise against thermal headroom. The drive delivers 120% transient overtorque for 60 seconds, which is useful for breakaway loads or short-duration overloads.

Frequently asked questions

Who supplies ATV21HD37N4 and how is it quoted for volume purchases?

This part is sourced through independent industrial-automation distribution. Volume quantities are quoted to order against the BOM; availability and current pricing are confirmed at RFQ time.

What compliance documentation does Schneider Electric provide for ATV21HD37N4?

The drive carries CE marking and complies with IEC 61800-3 (EMC environments 1 and 2, categories C1 to C3) and IEC 61800-5-1 (safety). A Class A EMC filter is integrated. The enclosure meets UL Type 1.

MPN
ATV21HD37N4