Schneider Electric ATV930U30N4Z is a three-phase variable speed drive rated 3 kW in normal duty and 2.2 kW in heavy duty, operating from a 380...480 V supply. It is built for demanding environments and delivers reliability you can depend on in mission-critical oil and gas operations.

What makes the ATV930U30N4Z suitable for harsh oil and gas environments?

The drive carries an environmental class rating of IEC 60721-3-3 class 3C3 / 3S3 / 3M3 (except frame size 7), which covers rugged conditions. Its operating temperature range is 0 to +40 °C standard, with derating from 40 to 50 °C for cabinet integration. The integrated Category C2 EMC filter helps maintain electromagnetic compatibility in industrial settings.

For mission-critical processes, the drive includes a Safe Torque Off (STO) function rated SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1. This integrated safety reduces external components and wiring. Additionally, the drive is Achilles Level 2 certified for cybersecurity, addressing network protection concerns in connected operations.

Key specifications

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• Motor power (ND): 3 kW with overload up to 120% for 60 s
• Motor power (HD): 2.2 kW (3 HP) with overload up to 150% for 60 s
• Output frequency: 0.1...599 Hz
• Integrated I/O: 3 analog inputs, 8 digital inputs (24 V DC), 2 analog outputs, 3 relay outputs
• Communication: Built-in Ethernet dual-port switch (RJ45) and Modbus serial port (RJ45); supports EtherNet/IP and Modbus TCP
• Safety: 1 STO function, SIL3 / Cat. PL e
• Protection rating: IP20 (bottom power terminals IP00)
• Dimensions (H×W×D): 285 x 130 x 196 mm

How does the dual ND/HD rating compare to other drives?

Many variable speed drives offer a single rating, but This unit provides dual-rated ND/HD operation. This means it can deliver 3 kW for normal duty applications with 120% overload for 60 seconds, or 2.2 kW for heavy duty with 150% overload for 60 seconds. In comparison, drives with a single rating may require oversizing for high-overload tasks. The dual rating offers flexibility and can reduce the need for multiple drive models in a plant.

When compared to drives without integrated safety, This unit includes STO, which can simplify safety system design. Also, the built-in Ethernet dual-port switch allows daisy-chain networking, reducing external switches and cabling.

Installation and setup

This cabinet integration version requires proper clearance: 100 mm above and below, and 10 mm in front (Frame 1-5). Terminal tightening torque for power terminals is 2.5 N·m (Frame 1-3). The drive requires a minimum external brake resistor of 34 Ω if braking is needed. For altitudes above 1000 m, derate nominal current by 1% per additional 100 m up to 3000 m.

Wiring into industrial networks may require an external gateway or connection module; confirm cables and gateways with PetroPartsOnline for your application's requirements.

Applications and use cases

In oil and gas, This unit can control pumps, fans, and compressors where variable speed is essential. Its dual rating suits applications with varying load profiles, such as progressive cavity pumps that occasionally demand higher torque. The integrated STO supports safety functions in emergency shutdown systems. The drive's environmental class and EMC filter make it suitable for installation in cabinets near process equipment.

Maintenance and reliability

Periodic inspection of cooling airflow is recommended; the drive requires a minimum air flow of 38 m3/h. Power dissipation is 119 W in ND and 87 W in HD at nominal load. Operating temperature should be monitored, and derating applied above 40 °C. The drive's robust design and integrated protections contribute to reliable operation in demanding environments.

FAQ

What is the operating temperature range of This unit?

This unit operates from 0 to +40 °C standard, with derating from 40 to 50 °C for cabinet integration.

What input voltage does This unit require?

This unit requires a 380...480 V three-phase supply (-15%/+10%), 50/60 Hz.

Does This unit include a braking unit?

Yes, This unit includes a built-in dynamic brake transistor, but an external braking resistor is required, with a minimum of 34 Ω.

What communication protocols are supported by This unit?

This unit supports EtherNet/IP and Modbus TCP via its built-in Ethernet dual-port switch, and Modbus RTU/TCP via its serial port.

What is the power rating of This unit?

This unit is dual-rated: 3 kW in normal duty with 120% overload for 60 s, and 2.2 kW in heavy duty with 150% overload for 60 s.

Contact PetroPartsOnline for parts suited to your application's requirements.

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