E82EV751_4C Lenze 8200-Series 0.75 kW Vector Frequency Inverter

Product Overview

The E82EV751_4C (E82EV751K4C) is a high-performance Vector Frequency Inverter designed for modular precision within the Lenze 8200-Series lineup. Delivering a rated power of 0.75 kW, this drive is engineered for sophisticated speed and torque control in demanding industrial environments such as conveyor systems, pump stations, and ventilation control. By utilizing advanced vector control, the E82EV751_4C ensures high dynamic response and optimal motor efficiency, even at low speeds. As a phase-out component, it remains a critical asset for facility managers and maintenance engineers who require "like-for-like" replacements to maintain system integrity and avoid the high costs of complete control cabinet redesigns. Its robust German engineering guarantees long-term durability in continuous-duty cycles, providing a stabilized bridge for legacy system support.

Technical Configuration

The E82EV751_4C architecture is defined by its modularity and space-saving "bookcase" design. It features a triple-phase mains connection (3 x 400 / 500 VAC) and operates without integrated interference suppression, allowing for customized external filtering based on specific site requirements. The internal control logic supports high overload capacity (150% rated current for 60 seconds), which is essential for high-inertia startups. The unit is compatible with various plug-in modules, including fieldbus interfaces (CAN, PROFIBUS) and localized keypad units for manual parameterization. Its integrated motor protection functions, including thermal monitoring and short-circuit detection, ensure the drive and the connected motor are shielded from electrical irregularities.

Technical Specifications

Technical FAQs

Does the E82EV751_4C require an external RFI filter for operation?

Yes, as this specific model is supplied without internal interference suppression measures, an external RFI (Radio Frequency Interference) filter is recommended if the application must comply with strict CE electromagnetic compatibility (EMC) standards in residential or commercial grids.

What is the difference between the E82EV751_4C and the E82EV751K4C codes?

These refer to the same physical unit. The "K" in the second code often denotes "Kilowatt" notation in internal Lenze logistics, but they are functionally and electrically identical 0.75 kW units.

Can I use this drive for simple V/f control as well as Vector control?

Absolutely. The 8200-Series is versatile; while it excels in sensorless vector control for high torque applications, it can be easily configured for standard V/f characteristic curves for simpler fan and pump applications via the parameter settings.

Engineering & Installation Guide

• Vibration and Mounting: The E82EV751_4C should be mounted vertically on a flat, vibration-resistant surface. In environments with high mechanical resonance (e.g., direct mounting on a vibrating machine frame), use vibration-dampening standoffs to protect the internal power electronics and control board solder joints from fatigue.

• Cooling and Airflow: Maintain a minimum clearance of 50 mm above and below the unit to ensure unimpeded airflow. Since this unit is compact (7.60 cm wide), side-by-side mounting is possible, but you must monitor the internal cabinet temperature to ensure it does not exceed 40 Celsius to maintain the full 0.75 kW power rating without derating.

• Wiring and Grounding: Given the lack of internal suppression, proper grounding is non-negotiable. Use a large-surface area ground connection (PE rail) and ensure the motor cable is as short as possible. For cable lengths exceeding 10 meters, consider output reactors to protect motor insulation from dV/dt voltage spikes.