Lenze E82EV302K4C 8200 Inverter 3KW 400/500V

Lenze E82EV302K4C 8200 Frequency Inverter

Product Introduction

The Lenze E82EV302K4C is a robust frequency inverter from the 8200 series. Engineers use it to control asynchronous motors in industrial applications. This model accepts a wide mains voltage range from 320V to 550V AC. Alternatively, you can supply it with DC voltage between 450V and 775V. With a rated power of 3KW, it suits pumps, fans, and conveyors. Additionally, its built-in brake chopper allows quick stopping cycles. Therefore, the Lenze E82EV302K4C offers flexible and reliable motor control.

Technical Specifications

Input Power Parameters

The Lenze E82EV302K4C operates on a 3-phase AC supply. Its mains voltage range goes from 320V to 550V with no tolerance below or above. The frequency range spans 45Hz to 65Hz. For DC supply, the unit accepts 450V to 775V DC. This dual capability makes it suitable for battery-backed systems or common DC bus setups.

Output Current Ratings

Without a mains choke, the rated mains current is 9A. When you add a mains choke, this value drops to 7A. The rated output current stands at 7.3A at an 8kHz switching frequency. Moreover, the maximum output current reaches 11A under the same 8kHz condition. This peak current handles short-term overloads like motor starting or heavy load bumps.

Brake Chopper and Losses

This inverter includes a built-in brake chopper. The minimum brake resistance allowed is 100 Ohms. You can connect an external braking resistor to this value. Furthermore, the total power loss equals 145W. This figure helps you calculate cabinet cooling requirements.

Mechanical and Environmental Data

Dimensions and Weight

The Lenze E82EV302K4C measures 240mm in height, 100mm in width, and 140mm in depth. Its mass is only 2.9 kg. Therefore, one person can easily handle the installation. The compact shape saves valuable panel space.

Permissible Motor Cable Lengths

This frequency inverter allows a shielded motor cable up to 50 meters long. For unshielded cables, the maximum length increases to 100 meters. These limits ensure stable operation and reduce electromagnetic interference. For longer runs, we recommend adding an output filter.

Installation Guidelines

Mechanical Mounting Steps

First, mount the Lenze E82EV302K4C vertically on a flat, non-flammable surface. Use M4 screws through the four mounting slots. Next, keep at least 100mm of free space above and below for air circulation. Then, avoid placing heat-generating devices directly next to the unit. Finally, ensure the front cover remains easily accessible for parameter adjustments.

Electrical Connection Procedure

Connect the AC mains to terminals L1, L2, and L3. For DC supply, use terminals +UD and -UD instead. Wire the motor output to terminals U, V, and W. Ground the PE terminal with a short, thick cable. Additionally, use shielded cables for the motor to meet EMC standards. Tighten all power terminals to 1.2 Nm of torque.

Using the Brake Chopper

Attach the braking resistor to terminals R+ and R-. Choose a resistor with at least 100 Ohms resistance. Otherwise, the brake chopper may suffer damage. Also, place the resistor outside the cabinet if it generates high heat. For most applications, a 100 Ohm, 200W resistor works well.

Packaging List

• Lenze E82EV302K4C frequency inverter (1 unit)

• Plastic dust cover for bottom terminals

• Quick start card (multilingual)

• Mounting screws kit (4 pcs)

Note: No certificates or warranty documents are included in the package.

Shipping Information

We ship all orders via FedEx, UPS, or DHL. Delivery usually takes 3 to 7 business days. You will receive a tracking number within 24 hours after shipment. The shipping weight including carton is approximately 3.5 kg.

Frequently Asked Questions (FAQ)

1. Can the Lenze E82EV302K4C run a 1.5KW motor?

Yes, you can run a smaller motor without problems. Simply adjust the motor parameters in the inverter settings. The unit will limit its output current accordingly.

2. What happens if I use a 50 Ohm braking resistor?

The Lenze E82EV302K4C will detect an overcurrent in the brake chopper. It then triggers a fault and shuts down. Always use a resistor of 100 Ohms or higher.

3. Is this inverter compatible with single-phase 230V input?

No, the Lenze E82EV302K4C requires three-phase input. The minimum voltage is 320V AC. Single-phase 230V cannot operate this unit.

4. How do I reset the inverter after an overload trip?

Press the "Reset" button on the front panel. Alternatively, cycle the input power off for 10 seconds. Wait 3 minutes before restarting a hot motor.

5. Can I extend the motor cable beyond 100 meters without a filter?

We do not recommend exceeding 100 meters of unshielded cable. You may experience nuisance trips or motor overheating. Use an output dv/dt filter for cable runs up to 150 meters.