Skip to main content
Log in
Schneider Electric ATV21WD55N4 — AC Drive (VFD) 480V

ATV21WD55N4 - Schneider Electric

MPNATV21WD55N4
Obsolete

variable speed drive - ATV21 - 55kW 75HP - 480V - EMC filter class A - IP54

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ATV21WD55N4 — Identification
ParameterValue
Product typeVariable speed drive
Product range / familyAltivar 21
ATV21WD55N4 — Power & Output
ParameterValue
Motor power (kW)55 kW
Max. transient current127.6 A 60 s
Apparent power76.3 kVA 380 V
ATV21WD55N4 — Input / Supply
ParameterValue
Input line current89 A 480 V 102.7 A 380 V
ATV21WD55N4 — Control & Performance
ParameterValue
Output frequency range0.5...200 Hz
Asynchronous motor control modesConstant voltage/frequency ratio with automatic IR compensation Constant voltage/frequency ratio Current flux vector control (FVC) without speed feedback Energy saving ratio Quadratic voltage/frequency ratio
ATV21WD55N4 — 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
ATV21WD55N4 — Mechanical & Cooling
ParameterValue
IP degree of protectionIP54 EN 60530 IP54 EN 61800-5-2 IP54 IEC 60529 IP54 IEC 61800-5-1
Acoustic noise level63.7 dB 86/188/EEC
Assembly / installation styleWith heat sink
ATV21WD55N4 — 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
ATV21WD55N4 — Approvals
ParameterValue
Certifications & markingCE
Standards complianceEN 61800-3 environments 2 category C1 IEC 61800-3 category C2 EN 61800-3 category C3 IEC 61800-3 environments 2 category C2 IEC 61800-3 environments 2 category C1 EN 61800-3 environments 2 category C3 EN 61800-3 IEC 61800-3 IEC 61800-5-1 IEC 61800-3 environments 1 category C1 IEC 61800-3 environments 2 category C3 EN 61800-3 environments 1 category C1 EN 55011 class A group 1 EN 61800-3 environments 2 category C2 IEC 61800-3 environments 1 category C3 IEC 61800-3 environments 1 category C2 IEC 61800-3 category C3 EN 61800-5-1 EN 61800-3 environments 1 category C3 EN 61800-3 category C2 EN 61800-3 environments 1 category C2
ATV21WD55N4 — Communication
ParameterValue
Communication protocolsModbus
MPN
ATV21WD55N4