Schneider Electric ATV320U07N4C — 0.75kW VFD Specs & Buyer Guide

By Abdullah Zahid
14 min read
Schneider Electric ATV320U07N4C 0.75kW compact variable speed drive for packaging and conveyor motor control

Schneider Electric ATV320U07N4C Variable Speed Drive, 0.75kW, 380-500V, 3-Phase, Compact — Specs and Selection Guide

When a conveyor goes down or a packaging line needs a variable-speed upgrade, the search for the right compact VFD usually ends at a specific catalog number. The Schneider Electric ATV320U07N4C is a 0.75kW, 380–500V three-phase variable frequency drive from the proven Altivar Machine family — a compact unit that sits between your panel power supply and your motor, delivering adjustable speed control for small industrial machinery without unnecessary complexity. If you are confirming specs, checking stock, or comparing this model against adjacent power ratings, this guide covers exactly that.

If you have already confirmed this is the correct part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Buy the ATV320U07N4C — and Who Shouldn't

The ATV320U07N4C is the right drive when all of the following apply to your application:

  • Your motor nameplate shows 0.75kW (approximately 1 hp) — not 0.55kW, 1.1kW, or 1.5kW
  • Your facility supplies 380V, 400V, or 500V three-phase AC — this drive does not accept single-phase or 200V supply
  • Your panel layout supports a compact DIN-rail mounted drive with IP20 enclosure rating — not suitable for wet, washdown, or heavily contaminated environments without additional enclosure
  • A 4kHz switching frequency is acceptable for your motor application — standard for conveyors, fans, and packaging lines
  • You have an external contactor or circuit breaker rated for 3.6A AC3/AC4 installed or planned upstream — this drive contains no integrated circuit protection
  • Your control circuit provides 24V DC or 110/230V AC for auxiliary supply and enable signals

If your motor exceeds 0.75kW, step up to the ATV320U11N4C (1.1kW) or ATV320U15N4C (1.5kW). If your supply is single-phase or 200V class, a different drive family is required.

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What the ATV320U07N4C Actually Does in a Control System

The ATV320U07N4C is a variable frequency drive — it takes the fixed-frequency three-phase AC power from your facility supply (380–500V at 50 or 60Hz) and converts it into a variable-frequency, variable-voltage output that controls the speed and torque of a connected three-phase motor. The result is infinitely adjustable motor speed between zero and rated speed, using either an analog 0–10V reference signal, a 4–20mA current loop, or digital run/stop commands from a PLC or control pendant.

The drive belongs to Schneider Electric's Altivar Machine family, which targets simple industrial and commercial machines — not high-precision servo or coordinated multi-axis motion. Its 4kHz switching frequency is the standard baseline for this product class, producing stable output suitable for asynchronous and synchronous three-phase motors in standard industrial duty cycles. Power dissipation at rated load is 32W, which determines the thermal management requirement in your panel design. The nominal output current is 3.6A at rated load — a hard constraint that must match your motor's nameplate current.

One specification that catches first-time buyers off guard: the ATV320U07N4C does not include an integrated circuit breaker or contactor. An external upstream protection device rated for 3.6A AC3 or AC4 duty is mandatory — both for compliance with electrical codes (NEC, CSA, IEC) and for protecting the drive and panel from fault current events.

Typical System Architecture for a Compact VFD Installation

The ATV320U07N4C sits mid-chain between your facility power distribution and the motor terminals. Here is the typical signal and power path in a compact drive installation:

  • Facility three-phase AC supply (380–500V) feeds a main panel distribution board
  • An external contactor or circuit breaker rated 3.6A AC3/AC4 provides upstream protection and isolation — mounted in the same panel, upstream of the drive
  • The ATV320U07N4C receives three-phase supply at its L1, L2, L3 input terminals and outputs variable-frequency AC at U, V, W terminals to the motor
  • A 24V DC auxiliary supply (or 110/230V AC depending on region) powers the drive control circuit and enables run/stop logic from a PLC digital output or control pendant
  • An analog speed reference (0–10V potentiometer or 4–20mA signal from a PLC analog output) connects to the drive's analog input terminal AI1 to command speed setpoint

Where the ATV320U07N4C Gets Deployed: Applications and Industries

Packaging lines use this drive to coordinate motor speed on cardboard erectors, case sealers, and label applicators — where a single analog speed setpoint lets operators adjust throughput from the HMI without stopping the line. The compact footprint and simple analog interface make it a natural fit for OEM machine builders who need to include variable speed in a small panel.

Conveyor belt systems in material handling and light manufacturing facilities benefit from the drive's ability to dynamically adjust belt speed during shift transitions or product changeovers. A maintenance technician can also use the jog function to inch the belt forward or backward for safe alignment work without removing the motor from the circuit.

Pump and fan applications — including HVAC air handling units, building ventilation fans, and process pump stations — use the ATV320U07N4C to reduce motor speed during part-load conditions, cutting energy consumption compared to fixed-speed operation with bypass valves or dampers. The configurable acceleration and deceleration ramp times allow smooth startup and shutdown that extends mechanical component life.

Application Typical Deployment
Packaging line speed control Drives cardboard erectors, case sealers, or label applicators from a single analog setpoint
Conveyor belt variable speed Adjusts throughput dynamically during shift transitions; supports jog function for maintenance alignment
Pump discharge flow regulation Slows pump motor during low-demand periods, eliminating bypass valve energy waste
HVAC fan and blower modulation Reduces fan speed during part-load conditions in air handling units and building ventilation systems
Light assembly and material handling Controls small conveyor or transfer table motors in food, textile, or recycling lines

ATV320U07N4C Specifications That Matter at Purchase Decision

Parameter Value Notes
Motor Power Rating 0.75kW Approximately 1 hp — verify motor nameplate before ordering
Rated Input Voltage 380–500V AC Three-phase only; not compatible with single-phase or 200V supply
Input Frequency 50/60Hz Standard industrial supply
Rated Output Current 3.6A at rated load Hard limit — motor nameplate current must not exceed this figure
Switching Frequency 4kHz nominal N4C suffix; 8kHz (N8C) and 16kHz (N16C) variants available at higher cost
Power Dissipation 32W at rated load Use for panel thermal management calculation
Control Supply Voltage 24V DC or 110/230V AC Options vary by region — confirm with manual for your installation
External Protection Required 3.6A AC3/AC4 contactor No integrated circuit breaker — mandatory upstream device
IP Enclosure Rating IP20 (or IP21) Not suitable for wet or washdown locations without additional enclosure
Form Factor Compact DIN-rail, vertical stacking supported Reduces panel space vs. full-size industrial drives

Full technical specifications are available on the product page at LeadTime.ca.

ATV320U07N4C vs. Other Power Ratings: Which One Do You Actually Need?

Model Power Rating Rated Output Current Typical Application Selection Rationale
ATV320U05N4C 0.55kW Lower than 3.6A Small conveyors, light pumps Step down; lower cost but limited overload headroom
ATV320U07N4C 0.75kW 3.6A Standard conveyors, fans, packaging Cost and compactness sweet spot for 0.5–0.75kW motors
ATV320U11N4C 1.1kW Higher than 3.6A Heavy conveyors, larger pumps Step up if measured motor current exceeds 3.6A baseline
ATV320U15N4C 1.5kW Higher than 3.6A Multi-motor bundles, packaging lines Two steps up; use if future expansion is planned

If your motor nameplate shows a current draw that approaches or exceeds 3.6A, the ATV320U11N4C is the correct next step — check current availability and compare models at LeadTime.ca.

Expert Verdict: Is the ATV320U07N4C the Right Drive for Your Project?

The ATV320U07N4C earns its position as a reliable baseline compact drive for one clear reason: it solves the most common small-motor speed-control problem — converting a fixed-speed conveyor, pump, or fan into a variable-speed system — without requiring advanced programming, expensive commissioning tools, or a complex panel redesign. Its 0.75kW rating and 4kHz switching frequency are exactly matched to the duty profile of packaging lines, material handling conveyors, and building system fans. The Altivar Machine family has deep industrial deployment history, and for a maintenance technician upgrading a legacy fixed-speed system or an integrator standardizing a fleet of small drives across a customer facility, the commissioning time is typically under one hour for basic speed control. That is a meaningful advantage when production downtime has a real cost.

Where this drive reaches its limits is equally clear. If your motor test shows sustained current draw exceeding 3.6A, the ATV320U07N4C will fault on overcurrent — step up to the ATV320U11N4C or ATV320U15N4C. If your environment is classified as hazardous (ATEX, UL/CSA hazardous location), the standard IP20 enclosure is not rated for that duty. Applications requiring high switching frequency for noise-sensitive environments should specify the N8C (8kHz) or N16C (16kHz) variants instead. And if your facility runs single-phase supply, or your motor is single-phase, a different drive family is required entirely — the ATV320U07N4C accepts only three-phase 380–500V input.

From a procurement standpoint, this is a widely stocked, mature product with realistic lead times of 1–5 business days from authorized distributors carrying North American inventory. The single most important pre-order action is confirming that an external 3.6A AC3/AC4 contactor is already specified for upstream protection — this drive ships without integrated circuit protection, and missing that step is the most common installation mistake. Ordering through a specialist distributor means you have a technically qualified contact who can verify that the model number suffix (N4C, not N8C or N16C) matches your switching frequency requirement before the drive ships. View current stock and pricing for the ATV320U07N4C at LeadTime.ca — available to buyers worldwide.

For volume pricing on multiple units or to confirm lead time before locking in a project schedule, contact the LeadTime.ca team directly — we ship worldwide.

What Engineers Need to Know Before Ordering the ATV320U07N4C

The ATV320U07N4C is a mature, high-penetration product that has been deployed across thousands of installations in packaging, material handling, and building systems. Because it is well-understood by experienced automation engineers, most technical questions are handled through manufacturer documentation or distributor technical channels rather than public forums — which means buyers relying on community threads may find limited discussion specific to this model number. That absence of noise is actually a signal of product stability, not obscurity. What it does mean is that the risk of ordering mistakes shifts from product performance concerns to specification and procurement errors — and those are entirely preventable.

The three errors that create real project delays are: omitting the upstream external contactor (the drive contains no integrated circuit protection and requires a 3.6A AC3/AC4 rated device upstream), connecting a motor whose nameplate exceeds 0.75kW to a drive rated for 3.6A nominal output current, and ordering the wrong switching frequency suffix — receiving an N8C (8kHz) or N16C (16kHz) unit when the project specifies N4C (4kHz). Each of these mistakes is invisible until commissioning day, at which point the project timeline takes the hit. The model number suffix is the key: N4C indicates 4kHz switching frequency, and that suffix must appear exactly on both the purchase order and the shipping confirmation before the drive leaves the distributor.

When community data is sparse and the stakes are a production restart window, the right move is to buy through a distributor whose technical team can confirm the specification match before the order ships — not after. LeadTime.ca carries the ATV320U07N4C with technical pre-sales support, meaning you can confirm voltage class, switching frequency variant, and external protection requirements with a specialist before committing to the order. That verification step costs nothing and eliminates the most common sources of on-site rework.

Wiring and Installation: Key Requirements Before You Connect Power

  • Connect three-phase AC supply (L1, L2, L3) from the output of your external 3.6A AC3/AC4 upstream contactor to the drive input terminals — never connect supply directly without upstream protection in place
  • Connect three-phase motor leads to drive output terminals U, V, W; use VFD-grade motor cable with appropriate insulation rating for variable-frequency output — standard THHN cable is not recommended for long runs
  • Connect 24V DC auxiliary supply (or 110/230V AC where applicable) to drive control terminals before applying main power; the control circuit must be energized for the drive to respond to run/stop commands
  • Connect analog speed reference (0–10V or 4–20mA) to terminal AI1; connect run/stop enable signal (24V logic level) to digital input DI1; tie all control signal ground wires to a single ground point in the panel to avoid ground loops
  • Verify supply voltage at drive input terminals using a multimeter before closing the main contactor; confirm three-phase balance and that voltage falls within the 380–500V rated range

For full wiring diagrams, terminal torque specifications, EMC shielding requirements, and regional grounding guidance, refer to the Schneider Electric Altivar Machine ATV320 installation manual available through the manufacturer's documentation portal.

Compatible Accessories and System Expansion

The ATV320U07N4C is part of the broader Altivar 320 series ecosystem. The following accessories and adjacent models are relevant to a complete installation:

  • External contactor (3.6A AC3/AC4 rated) — mandatory upstream protection device; not included with the drive
  • ATV320U05N4C (0.55kW) — one step down for smaller motors or reduced duty cycle applications within the same panel architecture
  • ATV320U11N4C (1.1kW) — one step up when measured motor current exceeds 3.6A or load calculations show demand above 0.75kW
  • ATV320U15N4C (1.5kW) — two steps up for multi-motor bundles or packaging systems where future motor upgrades are anticipated
  • N8C and N16C switching frequency variants — same power class (0.75kW) with 8kHz and 16kHz switching frequency respectively, for noise-sensitive or high-speed spindle applications

Wrong-Part Prevention: Verify These Six Points Before Ordering

Run through this checklist before placing your order — each point maps to a known installation failure mode for this drive class:

  1. VOLTAGE MATCH: Confirm facility three-phase supply is 380V, 400V, or 500V. Not compatible with 200V, 110V, or single-phase supplies.
  2. POWER MATCH: Verify motor nameplate shows approximately 0.75kW (not 0.55kW, 1.5kW, or 2.2kW).
  3. PHASE COUNT: Confirm motor is three-phase asynchronous or synchronous. Single-phase motors require different drive family.
  4. EXTERNAL PROTECTION: Confirm facility has contactor or circuit breaker rated for 3.6A (nominal current at 380-500V) upstream of this drive. This model does not include integrated protection.
  5. ENCLOSURE IP RATING: If dusty/wet environment, verify IP20 is acceptable. Damp or washdown applications may require IP54/IP65 variants or separate enclosure.
  6. CONTROL SIGNAL AVAILABILITY: Confirm facility has 24V DC or 110/230V AC auxiliary supply for control signals and enable commands.

If any of these points raises a question before you finalize the order, contact the LeadTime.ca technical team — confirming specification fit before the drive ships is faster and less expensive than returning the wrong part after commissioning day.

Frequently Asked Questions

Does the ATV320U07N4C include a circuit breaker or integrated motor protection?

No. The ATV320U07N4C does not include an integrated circuit breaker or contactor. An external upstream protection device rated for 3.6A AC3 or AC4 duty is mandatory before connecting this drive to a facility power supply. This requirement is consistent across the Altivar Machine product family and is mandated by electrical codes including NEC, CSA, and IEC standards.

Can this drive operate a single-phase motor?

No. The ATV320U07N4C is designed exclusively for three-phase asynchronous and synchronous motors. The drive's three-phase output architecture (U, V, W terminals) is not compatible with single-phase motor winding configurations. If your motor is single-phase, a different drive family is required.

What is the practical difference between the N4C, N8C, and N16C switching frequency variants?

The suffix indicates the drive's nominal PWM switching frequency: N4C operates at 4kHz (baseline cost, standard for conveyors, fans, and packaging), N8C at 8kHz (reduced motor audible noise and heating, approximately 15–25% higher cost), and N16C at 16kHz (very high-speed spindle or precision applications, highest cost and EMC shielding requirements). For the majority of material handling and packaging applications, the 4kHz N4C variant is the correct and cost-appropriate choice.

What is the realistic lead time for the ATV320U07N4C when ordered through an authorized distributor?

In-stock orders from authorized distributors carrying North American inventory typically ship within 1–5 business days. If the unit must be sourced from European distributor stock, lead time extends to approximately 8–13 business days. Non-standard variants (high switching frequency or special voltage configurations) may require 14–21 business days. Always verify stock status with your distributor before committing these timelines to a production restart schedule.

Is basic commissioning of the ATV320U07N4C practical for a technician without PLC programming experience?

Yes, for straightforward speed control. The drive connects directly to an analog 0–10V speed reference and a 24V DC run/stop enable signal, with motor nameplate parameters entered via the drive's onboard interface — no PLC programming or specialized software is required for this configuration. Advanced functions such as configurable ramp profiles, overcurrent thresholds, and multi-speed setpoints require review of the Schneider Electric Altivar Machine ATV320 programming manual, but these are accessible to a technician with intermediate electrical skills.

What does a red LED on the ATV320U07N4C indicate, and what should I check first?

A steady red LED indicates a fault condition is present. The first checks are: confirm three-phase AC supply voltage is present at the L1, L2, L3 input terminals; verify the upstream contactor is closed and the control circuit 24V supply is active; and check whether the motor is mechanically bound (the most common cause of overcurrent fault at startup). The drive's LED blink pattern or onboard display will indicate the specific fault code — consult the Schneider Electric ATV320 fault code reference in the installation manual for the exact diagnosis before resetting.

Why Order the ATV320U07N4C Through LeadTime.ca

  • Global shipping — LeadTime.ca fulfills orders to buyers worldwide, not limited to any single region or market
  • Specialist inventory — compact VFDs including the Altivar 320 series are a core stocked category, not a drop-ship afterthought
  • Technical pre-sales support — confirm voltage class, switching frequency suffix, and external protection requirements before the order ships
  • Transparent lead time communication — realistic delivery windows provided upfront, with proactive notification of any delays
  • Volume and project pricing — contact for multi-unit quantities or ongoing facility standardization programs

At-a-Glance Summary

  • Model: Schneider Electric ATV320U07N4C — Altivar Machine Variable Speed Drive, Compact
  • Motor power: 0.75kW (approximately 1 hp); rated output current 3.6A at 380–500V three-phase
  • Input voltage: 380–500V three-phase AC, 50/60Hz — not compatible with single-phase or 200V supply
  • Switching frequency: 4kHz nominal (N4C suffix) — 8kHz (N8C) and 16kHz (N16C) variants exist at higher cost
  • Power dissipation: 32W at rated load — required input for panel thermal management
  • Enclosure: IP20 (or IP21) — suitable for standard industrial panel environments; not rated for wet or washdown locations
  • External protection: mandatory upstream 3.6A AC3/AC4 contactor — drive contains no integrated circuit breaker
  • Typical applications: packaging lines, conveyor belt speed control, pump flow regulation, HVAC fan modulation
  • Lead time: 1–5 business days from authorized distributors with North American inventory (verify before committing to project deadlines)
  • Step-up variants: ATV320U11N4C (1.1kW) and ATV320U15N4C (1.5kW) for motors drawing more than 3.6A at rated load

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