



The Schneider ATV61HD55N4 is a high-power variable frequency drive from the Altivar 61 series, designed for demanding process applications such as pumps, fans, and HVAC systems. With a rated output of 55kW (75HP), it delivers reliable, energy-efficient motor control for industrial environments that require continuous and stable operation.
Engineered with advanced motor control algorithms and flexible communication capabilities, this drive ensures smooth speed regulation, optimized torque performance, and reduced energy consumption. Although now considered a legacy product, it remains widely used in retrofit and maintenance projects due to its proven reliability and long service life.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ATV61HD55N4 |
| Product Type | Variable Frequency Drive (VFD) |
| Series | Altivar 61 |
| Rated Power | 55 kW (75 HP) |
| Input Voltage | 380–480 V AC (3-phase) |
| Rated Output Current | 116 A (380V) / 96 A (460V) |
| Line Current | 120 A (380V) / 101 A (480V) |
| Output Frequency | 0.1 – 500 Hz (up to ~599 Hz configurable) |
| Control Method | V/F Control, Sensorless Vector Control |
| Communication | Modbus, CANopen (expandable via fieldbus cards) |
| EMC Filter | Integrated Level 3 EMC filter |
| Switching Frequency | 1–16 kHz adjustable |
| Apparent Power | Approx. 79 kVA |
| Protection Rating | IP20 |
| Dimensions (H × W × D) | 630 × 320 × 290 mm |
| Weight | Approx. 44 kg |
| Mounting Type | Panel / Heat sink mounting |
Key specifications verified from industrial product data
Recommended Related Models
- ATV61HD45N4 – 45 kW version for slightly lower load systems
- ATV61HD75N4 – Higher power model for extended capacity
- ATV610U55N4 – Next-generation Easy Altivar replacement
- ATV630D55N4 – Advanced process drive with enhanced diagnostics
- ATV320D55N4C – Machine automation alternative
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