Schneider Electric ATV320D15N4B is a 15 kW (20 HP) three-phase variable speed drive from the Altivar Machine ATV320 series. It operates on a 380...500 V supply and delivers a nominal output current of 33.0 A at 4 kHz switching frequency. The book-format design with integrated category C2 EMC filter simplifies panel integration in mission-critical oil and gas installations.

Key features and technical specifications

• Motor power: 15 kW (20 HP) at 380...500 V three-phase supply.
• Output frequency: 0.1 to 599 Hz for flexible speed control.
• Overload capacity: 150% of nominal current for 60 s maximum.
• Overload torque: up to 200% Tn over-torque and 170% Tn braking torque for open-loop motor control.
• Switching frequency: 2 to 16 kHz programmable; factory setting 4 kHz (power derating above 4 kHz).
• Integrated EMC filter: category C2, reducing external filtering needs.
• Protection rating: IP20 for installation inside protective enclosures.
• Dimensions (H×W×D): 330 x 180 x 232 mm; weight 8.800 kg.

How does the ATV320D15N4B handle harsh oil and gas environments?

The drive operates in ambient temperatures from -10 to +50 °C without derating, and up to 60 °C with derating per the catalog derating curve. It tolerates relative humidity from 5...95% without condensation, making it suitable for many field-mounted cabinets. For high-altitude sites, derating is required above 1000 m: 1% current reduction per additional 100 m up to 3000 m. The IP20 rating means the drive must be installed in an enclosure that protects against dust and water ingress, which is standard practice in oil and gas panels.

What input voltage and power supply does this model require?

This unit accepts a three-phase supply of 380...500 V (-15%/+10%), 50/60 Hz. Maximum input current is 47.3 A at 380 V and 33.3 A at 500 V. Apparent power reaches 28.8 kVA at 500 V maximum. The built-in EMC filter (category C2) helps meet EN/IEC 61800-3 requirements for industrial environments. Power dissipation is 452 W at nominal current and rated switching frequency, so panel thermal design must account for this heat load.

Comparison with similar variable speed drive categories

When selecting a drive for oil and gas applications, engineers often compare book-format drives with conventional compact drives. This unit offers a book-format layout that saves panel width, and its integrated category C2 EMC filter eliminates the need for an external filter in many installations. Unlike drives that require separate braking transistors, this model includes an internal braking transistor for U22 and above; however, for U04 to U15 an external braking resistor is required (minimum 16 Ω). The single-rated output (33.0 A) simplifies sizing compared to dual-rated drives that require derating for heavy-duty cycles.

Applications and use cases

This drive is well suited for pumps, fans, and compressors in oil and gas processing. Its 150% overload capacity for 60 s handles starting torque demands. The integrated EMC filter reduces interference with sensitive instrumentation. With CANopen and Modbus Serial line built in, it integrates with existing control networks. For higher-level protocols, an optional communication module can be added via the expansion slot.

Installation and setup guidance

Mount the drive vertically (±10°) with a minimum clearance of 100 mm around the unit for adequate cooling. Terminal tightening torque is 1.2 to 1.5 N·m for frame 5, and the recommended minimum wire cross-section is 16 mm². The drive includes one RJ45 port for CANopen and Modbus Serial line, plus a slot for optional communication modules such as Modbus TCP/EtherNet/IP, PROFIBUS DP V1, DeviceNet, EtherCAT, POWERLINK, or PROFINET. Ensure the supply voltage matches the 380...500 V range and that the panel can dissipate the 452 W of heat at full load.

Maintenance and reliability

Periodic inspection of cooling fans and heatsinks is recommended to maintain airflow. Verify terminal connections remain tight and check for dust accumulation on the EMC filter. The drive's operating temperature range of -10 to +50 °C without derating supports reliable operation in many climates, but cabinet cooling must be adequate. The integrated EMC filter reduces the risk of electrical noise affecting nearby equipment, contributing to overall system reliability.

Integration and compatibility

This unit is designed for integration into industrial control systems. Built-in CANopen and Modbus Serial line allow direct connection to PLCs and HMIs. For other fieldbuses, optional modules are available. When wiring into fieldbus networks, confirm cable specifications and any required gateways with the supplier. The drive supports safety functions including STO up to SIL3/PLe, with four configurable safety inputs for SS1, SLS, SMS, and GDL.

Product support and availability

PetroPartsOnline supplies This unit and related accessories. Contact PetroPartsOnline for parts suited to your application's requirements.

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