Name: EVF9331-EV Lenze 9300 Vector 55 kW Drive Module
SKU: EVF9331-EV
Price: 214.00 USD
Availability: InStock

Product details

Model EVF9331-EV is a three-phase frequency inverter from the Lenze 9300 vector series.
It delivers 55.0 kW rated motor power for 4-pole asynchronous motors at 3 AC 400 V.
The design supports 150% overload for 60 s. This suits demanding starts and short peaks.
You can choose V/f control or sensorless vector control at commissioning.
The unit is a legacy Lenze product. Lenze lists a migration path to the i950 drive family.
No drop-in replacement shares the same order code. Plan a migration review before swap-out.

Brand: Lenze
Model: EVF9331-EV
Series: 9300 vector
Module type: Three-phase frequency inverter
Rated motor power: 55.0 kW (4-pole asynchronous motor, 3 AC 400 V)
Output current: 110.0 A nominal at 8 kHz chopper frequency
Max output current: 165.0 A for 60 s
Output power: 76.2 kVA nominal
Overload capacity: 150% rated torque for 60 s
Control modes: V/f characteristic control; sensorless vector speed control selectable
Chopper frequency: Adjustable 2, 4, 8 or 16 kHz
Output frequency range: 0 to 600 Hz max at 16 kHz; 0 to 300 Hz max at 8 kHz; 0 to 150 Hz max at 2 kHz; 0 to 150 Hz at 4 kHz for sizes 9321 to 9333
Supply voltage: 3/PE AC 320 to 528 V nominal, 45 to 65 Hz; alternative DC supply 460 to 740 V DC
Power loss: 1470 W rated heat dissipation
Operating temperature: 0 to +40 °C rated; +40 to +50 °C with 2.5% output current derating per K
Storage temperature: -25 to +55 °C; transport -25 to +70 °C
Relative humidity: Average 85% RH, no condensation, climatic class 3K3 per EN 50178
Protection rating: IP20 (NEMA 1)
Dimensions (H x W x D): 591 x 340 x 285 mm
Weight: 38.0 kg

Built-in ports: AIF automation interface (X1) for a pluggable fieldbus module; system bus CAN (X4); incremental encoder input (X8).
Protocols: CAN system bus. Fieldbus modules plug into the AIF interface. Options include LECOM-A/B RS232/485, PROFIBUS DP, CANopen, DeviceNet, INTERBUS and LON.
Communication expansion: A pluggable fieldbus module fits the X1 AIF interface. No fieldbus is integrated as standard.
Migration note: Lenze lists the 9300 series in the i950 migration set together with 8200vector, 8400 and 9400. The path uses an i950 PROFIBUS module and the L_ICIP library.
Replacement warning: No same-order-code drop-in replacement exists. Check wiring, mounting and parameter mapping before you migrate.

Mount the drive vertically on a flat panel. Keep the IP20 enclosure inside a suitable cabinet.
Respect the 591 x 340 x 285 mm footprint and the 38.0 kg weight. Use lifting aids for solo work.
Wire 3/PE AC 320 to 528 V supply. Alternatively use 460 to 740 V DC where the site allows.
Keep motor cables short and screened. Connect the screen to the cabinet earth at both ends.
Fit the incremental encoder to X8 when you need closed-loop speed feedback.
Plug the chosen fieldbus module into X1 AIF only when the drive is powered down.
Allow 1470 W of heat loss in the cabinet thermal design. Add forced cooling at high ambient.
Above +40 °C, derate output current by 2.5% per K up to +50 °C. Never exceed +50 °C.

Set motor data first. Then pick V/f or sensorless vector control to match the load.
Match the chopper frequency to cable length and noise limits. Higher settings cut output frequency headroom.
Run an autotune cycle on the motor where the firmware allows it. This improves low-speed torque.
Check DC bus ripple and heatsink temperature during the first load run.
Clean heatsinks and check fan operation every service interval. Dust shortens fan life.
Log parameter sets after tuning. Keep a spare copy for fast board replacement.
Replace DC bus capacitors on ageing units. Ask our team for a service plan.

The 9300 vector earned a strong reputation for rugged torque control in its era.
The 150% overload for 60 s still covers most pump, fan and conveyor starts.
Sensorless vector control gives good torque at low speed without an encoder.
The AIF slot keeps the drive flexible across many fieldbus standards.
Its main weakness is lifecycle. Spares and firmware support are shrinking.
Buy this unit for like-for-like spares, not for a new greenfield line.

Treat EVF9331-EV as a bridge product. It keeps legacy machines running while you plan the i950 upgrade.
Budget for a migration kit, not just a drive swap. Cabling and parameter maps change.
Stock one spare per critical line. Lead times on legacy stock can stretch.
Our team ships fast and helps you confirm fit before you order.

Pumps, fans and blowers with moderate starting torque.
Conveyors and handling lines that need short overload bursts.
Mixers and agitators on 55 kW 4-pole motors.
Retrofit projects where a 9300 vector cabinet already exists.
Machines with PROFIBUS DP, CANopen or DeviceNet networks via an AIF module.
Not ideal for new designs that need long-term spare support. Choose the i950 for that.

Confirm the motor power and voltage first. 55.0 kW at 3 AC 400 V is the rated point.
Check peak current needs. The 165.0 A 60 s limit sets the ceiling.
List the fieldbus you use. Order the matching AIF module with the drive.
Measure cabinet space. The 591 x 340 x 285 mm body needs clear airflow.
Plan for 1470 W of heat. Add cooling if the cabinet runs warm.
Decide between spare-part duty and migration. This choice drives the budget.
Ask us to verify the order code against your old nameplate before you pay.

Q: Is this drive new or used?
A: Ask our sales team for the current stock condition before you order.
Q: Can I replace my old 9300 vector with this unit directly?
A: Yes, if the order code matches. Check the nameplate and terminal layout first.
Q: Does it include a fieldbus module?
A: No. The X1 AIF slot is empty as standard. Order the module you need.
Q: What overload can it handle?
A: It delivers 150% rated torque for 60 s. That covers most heavy starts.
Q: Can I run it above 40 °C?
A: Yes, up to +50 °C. Derate output current by 2.5% per K above +40 °C.
Q: How fast do you ship?
A: We dispatch in 12 to 24 hours after payment clears. FedEx, UPS and DHL are our main carriers.
Q: What is the warranty?
A: Every unit carries a 12-month warranty. Keep the invoice for claims.
Q: Do you help with the i950 migration?
A: Yes. Send us your machine data and we map the upgrade path with you.
Q: Which carrier should I pick?
A: FedEx suits urgent lines. UPS is strong for heavy parcels. DHL covers many global routes.
Q: How do I choose between a spare and a migration?
A: Buy a spare to keep a running machine alive. Choose migration when downtime risk is high.