Pump & Fan Motor Control Solution — Schneider Electric ATV320U40N4C | Altivar 320
Where This Product Is Used
The Schneider Electric ATV320U40N4C (Altivar 320 series) is a 4 kW / 5 HP variable speed drive (VFD) engineered for demanding industrial motor control applications. Engineers and system integrators specify this drive across a wide range of sectors:
- Water & Wastewater Treatment — precise flow control for centrifugal pumps and booster stations
- HVAC Systems — energy-efficient speed regulation of supply/return fans and chilled-water pumps
- Food & Beverage Processing — hygienic conveyor and mixer speed control with smooth torque ramp
- Packaging Machinery — synchronised belt and roller drives requiring repeatable positioning
- Material Handling — overhead cranes, hoists, and pallet conveyors with dynamic braking
- General Manufacturing — compressors, agitators, and machine-tool spindle drives
Technical Specifications
| Part Number (SKU) | ATV320U40N4C |
| Series | Altivar 320 |
| Rated Power | 4 kW (5 HP) |
| Supply Voltage | 3-Phase 380–500 V AC ±15% |
| Output Frequency | 0.5–500 Hz |
| Rated Output Current | 9.5 A |
| Control Method | V/f, Sensorless Vector (SVC), Closed-Loop Vector |
| EMC Filter | Built-in (Class C2) |
| Protection Degree | IP20 (panel-mount) |
| Communication | Modbus RTU (RJ45); optional CANopen / EtherNet/IP card |
| Braking | DC injection; optional external braking resistor |
| Ambient Temperature | -10 °C to +50 °C (derating above 40 °C) |
| Altitude | Up to 1000 m (derating above) |
| Weight | 2.2 kg |
| Dimensions (H×W×D) | 170 × 105 × 156 mm |
| Country of Origin | France / China (Schneider global supply) |
Why Engineers Specify This Model
- Integrated EMC filter — the “C” suffix confirms a built-in Class C2 EMC filter, eliminating a separate filter cabinet and reducing panel footprint by up to 30%.
- Compact bookshelf design — side-by-side mounting without derating at rated ambient, maximising panel density.
- STO (Safe Torque Off) — SIL 2 / PLd — native functional safety input meets EN 62061 and ISO 13849-1 without external safety relays.
- Auto-tuning — one-button motor auto-tune optimises vector control parameters in under 60 seconds.
- Multi-pump / multi-fan PID — built-in PID controller with sleep/wake function for energy savings in variable-torque loads.
- Broad fieldbus ecosystem — native Modbus RTU plus optional plug-in cards for CANopen, DeviceNet, PROFIBUS DP, EtherNet/IP, and PROFINET.
Complete System Bill of Materials
For a fully engineered ATV320U40N4C installation, consider the following accessories:
- Input line reactor — VW3A4551 (reduces harmonic distortion)
- Output dV/dt filter — VW3A4421 (protects motor winding insulation on long cable runs)
- Braking resistor — VW3A7701 (for high-inertia or frequent-stop applications)
- Remote keypad — VW3A1101 (IP54 remote display & programming panel)
- Communication card — VW3A3608 (EtherNet/IP / Modbus TCP)
- Enclosure kit — IP55 through-panel mounting kit for outdoor or wash-down environments
Compliance & Industry Standards
- CE Marking — Low Voltage Directive 2014/35/EU & EMC Directive 2014/30/EU
- UL 508C — Power Conversion Equipment (cULus listed)
- IEC 61800-5-1 — Adjustable Speed Electrical Power Drive Systems
- IEC 61800-3 — EMC requirements (Category C2)
- EN ISO 13849-1 / IEC 62061 — Functional Safety (STO: SIL 2, PLd)
- RoHS 2011/65/EU compliant
Quality Assurance & Sourcing
Every ATV320U40N4C unit shipped by Konmask.com is:
- Sourced directly from authorised Schneider Electric distribution channels or verified OEM surplus stock.
- Inspected against Schneider Electric’s factory acceptance test (FAT) checklist — firmware version, label integrity, and seal verification.
- Packaged in original or equivalent ESD-safe anti-static packaging with desiccant.
- Accompanied by a Konmask inspection report and traceability record.
How to Source This Part
Ready to order the Schneider Electric ATV320U40N4C? Here’s how to get started:
- Add to Cart — for immediate single-unit or small-batch orders.
- Request a Quote — email support@konmask.com for volume pricing (5+ units), project BOM support, or lead-time confirmation.
- Call / WhatsApp — +0086 19859288691 for urgent procurement or technical pre-sales questions.
- Lead Time — in-stock units ship within 1–3 business days; ex-stock orders confirmed within 24 hours.
Application-Specific FAQ
Q: Can the ATV320U40N4C run a 4 kW pump motor in a water treatment plant?
A: Yes. The drive’s built-in PID controller and multi-pump sequencing make it ideal for booster pump stations. The integrated EMC filter ensures compliance with site EMC requirements without additional hardware.
Q: What is the difference between ATV320U40N4 and ATV320U40N4C?
A: The “C” suffix denotes a built-in EMC filter (Class C2). The base model ATV320U40N4 requires an external filter for CE EMC compliance; the ATV320U40N4C does not.
Q: Is STO wiring required for CE compliance?
A: STO is not mandatory for basic CE marking, but it is required if the machine safety assessment (EN ISO 13849-1) demands SIL 2 / PLd stop function. The ATV320U40N4C supports STO natively on terminals STO1A/STO2A.
Q: Can I use this drive with a Modbus PLC?
A: Yes. The RJ45 Modbus RTU port is standard. The drive supports standard Modbus function codes (03, 06, 16) for speed reference, run/stop commands, and fault readback.
Q: What is the maximum motor cable length?
A: Without output filter, Schneider recommends ≤50 m shielded cable. With a VW3A4421 dV/dt filter, cable runs up to 100 m are supported.
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