Lenze EVF9381-EVV030 Series 9300 Frequency Inverter – 350 HP AC Drive

Technical Specifications Breakdown

Key parameters for the EVF9381-EVV030 are listed below for quick reference:

High-Power Frequency Inverter for Demanding Industrial Applications

The Lenze EVF9381-EVV030 is a frequency inverter from the established Series 9300 product line, engineered for efficient and reliable motor control in heavy industrial environments. This robust unit delivers substantial power, supporting motors up to 350 HP, making it a solid choice for applications that demand consistent performance and durability.

Designed for standard industrial use, this inverter operates with a supply voltage of 340-456V AC and accepts a supply frequency of 45-65 Hz, offering flexibility to integrate into various power systems. The back panel mounting method simplifies installation within a control cabinet, saving valuable floor space and protecting the unit in a controlled environment.

Industry Applications and Operational Benefits

This frequency inverter is well-suited for industries that require reliable, high-horsepower motor control. Typical applications include conveyors, pumps, fans, and other heavy machinery where precise speed regulation and energy efficiency are critical. The generous 475A mains current rating ensures the unit can handle the demands of large motors, while the wide supply frequency range of 45-65 Hz accommodates installations in different regions.

By choosing a Series 9300 inverter, operators benefit from proven technology that has been deployed in countless industrial settings. The robust design minimizes downtime and maintenance costs, contributing to a strong return on investment over the equipment's lifespan.

Installation and Setup Guidance

The EVF9381-EVV030 is designed for back panel mounting inside a control cabinet. When installing, ensure the cabinet provides adequate ventilation to maintain the operating temperature within the specified 0 °C to +50 °C range. The IP20 rating means the unit is protected against solid objects larger than 12 mm, so it should be installed in an environment that limits dust and moisture exposure.

Before connecting power, verify that the supply voltage matches the 340-456V AC rating and that the supply frequency is within the 45-65 Hz range. Follow all local electrical codes and use appropriately rated conductors and fuses. Since the unit does not support an alternative DC supply, ensure a stable AC source is available.

Maintenance and Reliability

Regular inspection is key to ensuring long-term reliability. Periodically check the inverter for dust accumulation on heatsinks and verify that all connections remain tight. Monitor the ambient temperature to ensure it stays within the 0 °C to +50 °C operating range. Because the unit is IP20 rated, it is not suitable for outdoor or harsh environments; keeping it in a clean, climate-controlled cabinet will extend its service life.

Compatibility and Integration

The Series 9300 is a standalone frequency inverter, and this model is designed for direct AC motor control. It does not include an alternative DC supply option, simplifying the electrical design. For integration into existing systems, verify that the motor's power rating does not exceed 350 HP and that the mains current does not exceed 475A. The back panel mounting method is compatible with standard control cabinet layouts.

Selection Guide and Purchasing Advice

When selecting a frequency inverter for your application, consider the motor power, voltage, and current requirements. The EVF9381-EVV030 is a high-power solution that fits many heavy-duty scenarios. To ensure you receive a genuine, tested unit, contact AutoDCSTech for availability and lifecycle status. They specialize in industrial automation parts and can provide expert guidance on this and other Lenze products.

Please verify current lifecycle status and availability with AutoDCSTech before ordering.