E82EV371K2B Lenze 8200 Vector Inverter 0.37 kW 230 V Drive

E82EV371K2B Lenze 8200 Vector Inverter – Compact 0.37 kW Drive for Legacy Machines

The Lenze E82EV371K2B is a built-in vector-controlled frequency inverter from the 8200 vector series. It drives a 0.37 kW 4-pole asynchronous motor on a 230 V single-phase supply. Moreover, the unit delivers 2.4 A rated output current at 8 kHz. In addition, it handles 3.6 A for 60 s. Engineers therefore choose it for compact machines that need reliable speed and torque control.

Built-in Hardware Features

As a result, the drive carries a built-in EMC filter and a built-in brake transistor. The IP20 housing measures only 120 × 60 × 140 mm. However, this drive is a proven legacy platform. For this reason, Lenze lists an official migration path to the i950 generation. The i950 emulates 8200 vector behaviour via the i950 PROFIBUS module and the L_ICIP library. Still, no drop-in same-order-code replacement exists. Therefore, plan a migration project for new builds. Meanwhile, keep the E82EV371K2B for spares and existing installs. Furthermore, always verify the order code before purchase.

Key Advantages at a Glance

• Compact footprint: 120 × 60 × 140 mm saves panel space in tight cabinets.
• Vector control: stable torque at low speed for conveyors and pumps.
• High overload: 1.8 × rated torque for 60 s covers heavy starts.
• Flexible switching: 2, 4, 8 or 16 kHz selectable, 8 kHz factory setting.
• Wide output range: 0 to 650 Hz for fast spindle and specialty tasks.
• Integrated filter: built-in EMC filter cuts extra wiring and cost.
• Brake chopper included: built-in brake transistor up to 11 kW class.
• Fieldbus ready: two plug-in module slots for PROFIBUS DP, CANopen, DeviceNet, INTERBUS or AS-Interface.

Technical Specifications

• Brand: Lenze
• Model: E82EV371K2B
• Series: 8200 vector
• Product type: built-in vector-controlled frequency inverter
• Rated motor power: 0.37 kW, typical 4-pole asynchronous motor
• Rated output current: 2.4 A at 8 kHz switching frequency
• Max output current: 3.6 A for 60 s, periodic load change cycle
• Output frequency range: 0 to 650 Hz
• Switching frequency: 2 / 4 / 8 / 16 kHz selectable, 8 kHz factory setting
• Mains voltage class: 230 V
• Supply voltage: 1/N/PE 180 to 264 V AC, single-phase, 45 to 65 Hz
• DC supply option: 260 to 370 V DC, except E82EV251 and E82EV371 units
• Integrated EMC filter: yes, 230 V built-in unit, version-letter B revision
• Integrated brake transistor: yes, built-in chopper up to 11 kW
• Overload capability: 1.8 × rated torque for 60 s
• Power loss: 40 W at rated current and 8 kHz
• Operating temperature: -10 to +55 °C, derate 2.5 % per °C above +40 °C
• Storage temperature: -25 to +60 °C
• Relative humidity: average 85 % RH, no condensation, climatic class 3K3 per EN 50178
• Protection rating: IP20
• Dimensions (H × W × D): 120 × 60 × 140 mm
• Weight: 0.8 kg
• Built-in ports: RS232 / RS485 serial system bus
• Protocols: Lenze system bus; fieldbus via plug-in modules
• Communication slots: 2 control interfaces
• Supported fieldbuses: PROFIBUS DP, CANopen, DeviceNet, INTERBUS, AS-Interface

Installation Guide

• First, check the nameplate against your motor data before wiring.
• Then mount the unit vertically in a clean, dry cabinet.
• Keep IP20 protection in mind. Also use a sealed enclosure in dusty plants.
• Respect clearance for heat rise. In addition, derate above +40 °C.
• Next, wire single-phase 180 to 264 V AC to the mains terminals.
• After that, connect the motor for 230 V class operation.
• Use the built-in EMC filter to cut noise emissions.
• Add a braking resistor when you need fast stops. However, the brake chopper is already inside.
• Tighten terminals to the torque in the Lenze manual.
• Check earth bonding before first power-up.
• Keep signal cables apart from motor cables.
• Finally, use shielded cable for the RS232 / RS485 system bus.

Commissioning and Maintenance

• First, set motor data in the drive parameters: voltage, current, frequency and power.
• Then run an auto-tune cycle for vector control when the motor allows it.
• Set the switching frequency. 8 kHz is the factory default. Raise it for quieter motors. Lower it for longer cable runs.
• Set the overload limit. The drive allows 1.8 × rated torque for 60 s.
• Set the output limit within 0 to 650 Hz.
• Store parameter sets before you change them.
• Clean the heatsink and fan path on a fixed schedule.
• Check terminal screws after the first week of running.
• Log DC bus values to spot brake or load problems early.
• Keep spare fans and modules on site for legacy units.

Compatibility Notes

• Works with standard 0.37 kW 4-pole asynchronous motors in the 230 V class.
• Fits existing 8200 vector panels with the same 120 × 60 × 140 mm footprint.
• Uses plug-in modules for PROFIBUS DP, CANopen, DeviceNet, INTERBUS and AS-Interface.
• Supports the Lenze system bus over RS232 / RS485.
• No drop-in same-order-code replacement exists. Lenze confirms this clearly.
• For new projects, the i950 emulates 8200 vector behaviour. Use the i950 PROFIBUS module and L_ICIP library.
• Migration references: Lenze AKB articles 321231 and 316137. They cover 8200 vector, 9300, 8400 and 9400 families.

Certifications and Compliance

• Climatic class 3K3 per EN 50178.
• Built-in EMC filter supports compliant cabinet designs.
• IP20 protection rating for cabinet mounting.
• Lifecycle status: legacy product. Lenze keeps an official previous products page.
• Audit status: OFFICIAL_VERIFIED. Last verified October 2026.

Manager’s Insight

The 8200 vector is a workhorse, not a current catalogue hero. That is exactly why it still sells. Plants with twenty-year-old machines need the same form, fit and function. The E82EV371K2B gives them that. It also gives a clear exit path to the i950.

My advice is simple. Buy this unit for spares and legacy repair. Do not design a new line around it. Budget a migration plan with the i950 PROFIBUS module and the L_ICIP library. That plan keeps older machines running while the plant moves forward. Stock levels for legacy drives can shift fast. Therefore, order early and keep one spare on the shelf.

Expert Review

This drive earns respect for one reason. It does a small job very well. The 0.37 kW class, the 2.4 A rated current and the 1.8 × torque overload cover most light conveyor and pump duty. The vector control keeps torque steady at low speed.

The built-in EMC filter saves wiring time. The brake transistor saves extra hardware. The weak points are age and support. Firmware and spares depend on the legacy supply chain. The IP20 rating means you need a clean cabinet. The single-phase supply limits it to small loads. On balance, it is a solid legacy part with a documented future path.

Best Applications and Equipment

• Small conveyors and transport belts
• Pumps and fans in light duty
• Packaging and labeling machines
• Textile and winding equipment
• Door and gate drives
• Retrofit and repair of 8200 vector installs
• Laboratory and test bench rigs
• Small agitators and mixers
• Material handling stations
• Legacy machine spares programs

FAQ

Q: Can I use this drive on a three-phase supply?

A: The E82EV371K2B is a single-phase 230 V unit. However, three-phase versions exist in the 8200 vector family. Therefore, check the order code before you buy.

Q: Does it include a brake resistor?

A: No. It includes a built-in brake transistor. Therefore, you add the resistor separately. Size it for your stop duty.

Q: What switching frequency should I set?

A: Start at 8 kHz, the factory default. Raise it to 16 kHz for quieter running. Lower it to 2 or 4 kHz for long motor cables.

Q: Why does the drive derate above 40 °C?

A: Heat shortens capacitor life. The datasheet gives 2.5 % per °C derating above +40 °C. Keep the cabinet cool and you keep full output.

Q: Can I still buy this model new?

A: Supply depends on remaining legacy stock. Lenze lists it as a previous product. Therefore, plan a migration to the i950 for long-term needs.

Q: How hard is the i950 migration?

A: Lenze documents the path. The i950 emulates 8200 vector behaviour with the i950 PROFIBUS module and L_ICIP library. Expect parameter mapping work. Expect wiring checks. In short, do not expect a plug-and-play swap.

Q: Is the EMC filter enough for my cabinet?

A: The built-in filter helps a lot. However, you still need proper shielding, earthing and cable routing. Follow the Lenze EMC guide for the final layout.

Q: What should I check on a used unit?

A: Check fan noise, DC bus ripple and heatsink dust. Look for swollen capacitors. Ask for the parameter set. Test the brake chopper under load. Verify the RS485 port with a short bus run.

Q: How do I choose between repair and replacement?

A: Repair wins when the machine has years of life left and the panel matches. Replace when spares are gone and downtime cost is high. Compare total cost, not unit price alone.

Buying Guide

• First, confirm your motor is 0.37 kW, 4-pole, 230 V class.
• Also check your supply is single-phase 180 to 264 V AC.
• Match the rated current to your load. 2.4 A covers the standard class.
• Plan for 3.6 A peaks when the load cycles.
• Order the right plug-in module for your fieldbus.
• Buy a spare if the machine is critical. Legacy stock runs out.
• Ask for the parameter backup with any used unit.
• Request test data for the DC bus and brake chopper.
• Keep the i950 migration in your budget plan.
• Compare delivery time before you commit. Fast shipping matters when a line is down.

What’s in the Box and Warranty

• 1 × Lenze E82EV371K2B 8200 vector inverter
• 1 × printed quick-start guide, where supplied by Lenze
• 1 × terminal cover set, as shipped
• Packaging: protective carton with anti-static wrap
• Warranty: 12 months
• Dispatch: within 12 to 24 hours after order confirmation
• Couriers: FedEx, UPS, DHL
• Tracking number sent after dispatch

Contact and Ordering

Email our team at sales@powergearx.com for stock checks and lead times. Call or message us on +86 18030005825 for urgent replacement needs. Tell us your motor data and supply voltage. We confirm fitment before we ship.

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