Product details
Product Overview
EVF9381-EV is a three-phase frequency inverter from the Lenze 9300 vector series. It delivers 250 kW motor power with a 150% overload design. The device uses two parallel units (master plus slave). Total output current reaches 500 A nominal and 750 A for 60 s. It suits heavy industrial drives that need high torque reserve.
This model is a legacy product. Lenze lists it in the i950 migration set. No drop-in same-order-code replacement exists. Plan a migration path before you buy. Our team can help you confirm fit and lead time. Contact sales@powergearx.com or +86 18030005825.
Technical Specifications
- Brand: Lenze
- Model: EVF9381-EV
- Series: 9300 vector
- Module type: Three-phase frequency inverter, master plus slave in parallel
- Control modes: U/f linear and square, vector control, sensorless speed control
- Rated motor power: 250 kW (4-pole asynchronous motor, 3 AC 400 V)
- Output current: 500 A nominal at 2 kHz chopper frequency
- Max output current: 750 A for 60 s
- Overload: 150% rated torque for 60 s
- Power loss: 6.6 kW
- Chopper frequency: Adjustable 1, 2 or 4 kHz
- Output frequency range: 0 to 600 Hz max at 16 kHz; 0 to 300 Hz max at 8 kHz; 0 to 150 Hz at 2 kHz; 0 to 150 Hz at 4 kHz for sizes 9321-9333 (chopping-frequency dependent)
- Supply voltage: 3/PE AC 340 to 456 V nominal, 45 to 65 Hz (base EV / EVV030 / EVV060 / EVV110 variants). DC supply not possible.
- Operating temperature: 0 to +50 °C
- Storage temperature: -20 to +60 °C
- Relative humidity: Humidity class F, non-condensing (no %RH value published)
- Protection rating: IP20
- Cooling: Internal fan, airflow bottom to top
- Dimensions (H×W×D): 1145 × 1050 × 436 mm
- Weight: 320 kg
- Built-in ports: AIF automation interface (X1) for pluggable fieldbus module; system bus CAN (X4)
- Protocols: CAN system bus; fieldbus modules via AIF (LECOM-A/B, PROFIBUS DP, CANopen, DeviceNet, INTERBUS, LON)
- Communication expansion: Pluggable fieldbus module on X1 AIF interface (none integrated as standard)
Installation Guide
- Mount the master and slave units as one parallel set. Keep the stated footprint clear.
- Respect IP20 limits. Use a cabinet with filtered air.
- Keep airflow bottom to top. Do not block the internal fan path.
- Feed 3/PE AC 340 to 456 V, 45 to 65 Hz. Do not use a DC supply.
- Wire the CAN system bus on X4. Fit the fieldbus module on X1 AIF if needed.
- Check total current for both units. Size cables for 500 A nominal and 750 A short-time.
Commissioning and Maintenance
- Set the chopper frequency to match your output frequency need. Lower chopping gives lower loss.
- Pick U/f or vector mode by load type. Use sensorless speed control for simple speed loops.
- Confirm the 150% overload window fits your duty cycle (60 s).
- Clean the fan path on a fixed schedule. Dust shortens fan life.
- Log DC bus and heatsink trends. Early drift warns of wear.
- Keep spare fieldbus modules on hand. X1 modules are pluggable.
Compatibility Notes
- Fieldbus options: LECOM-A/B, PROFIBUS DP, CANopen, DeviceNet, INTERBUS, LON.
- Migration path: 9300 to i950 via the i950 PROFIBUS module and L_ICIP library.
- No drop-in same-order-code replacement. Expect re-engineering work.
- Pairs with 4-pole asynchronous motors at 3 AC 400 V.
Certifications and Audit Status
- Audit status: OFFICIAL_VERIFIED.
- Data sourced from official Lenze product information and AKB notes (20031153, 321231, 316137).
- Last verified: 2026-10.
Packing List and Warranty
- One EVF9381-EV inverter set (master plus slave units).
- Documentation set as supplied.
- Warranty: 12 months.
- Dispatch: 12 to 24 hours after order confirmation.
- Couriers: FedEx, UPS, DHL.
Expert Review
The 9300 vector was a workhorse for high-power drives. The EVF9381-EV still makes sense where a spare or a like-for-like rebuild is needed. The 150% overload and parallel master-slave layout give real headroom for crushers, mixers and hoists. The weak point is lifecycle. Parts and support shrink each year. Buy it as a bridge, not a long-term platform. Budget for an i950 migration plan in parallel.
Manager’s Insight
Stock risk is low if you already run 9300 drives. Lead time is short and shipping is fast. Do not design a new line around this model. Use it to keep existing assets running. Ask us for a migration quote at the same time. Reach sales@powergearx.com or +86 18030005825.
Best Fit Equipment and Applications
- Heavy conveyors and bulk handling lines.
- Crushers, mixers and extruders.
- Hoists and lifting gear with high starting torque.
- Pumps and fans that need wide frequency range.
- Retrofit projects on existing 9300 vector cabinets.
Buying Guide
- Confirm your motor power and current before you order. Check both units together.
- Match the supply window: 340 to 456 V, 45 to 65 Hz.
- List the fieldbus you need. X1 modules are not included as standard.
- Check cabinet space for 1145 × 1050 × 436 mm and 320 kg.
- Plan the i950 path early if the line must run past 2027.
- Order spares with the main unit. Lead time is short now, not later.
FAQ
Q: Is this a new or legacy model?
A: It is legacy. Lenze lists it in the i950 migration set.
Q: Can I drop it into an old cabinet without changes?
A: No. There is no same-order-code replacement. Expect wiring and setup work.
Q: What overload can it take?
A: 150% rated torque for 60 s.
Q: Does it include a fieldbus module?
A: No. The X1 AIF slot takes a pluggable module.
Q: How fast do you ship?
A: Within 12 to 24 hours via FedEx, UPS or DHL.
Q: What is the warranty?
A: 12 months.
Q: From experience, what fails first?
A: Fans and bus capacitors. Clean airflow and log heatsink trends to catch wear early.
Q: Which option should I pick, repair or migrate?
A: Repair if the line has years left and spares exist. Migrate if support windows are closing.
Q: How do I confirm fit before buying?
A: Send motor data, supply voltage and fieldbus type. We check them against this record.
Contact
Email: sales@powergearx.com
WhatsApp: +86 18030005825
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Original Source: https://www.powergearx.com/
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