Engineered for precise speed and torque regulation of three-phase asynchronous motors, the Lenze EVF8244-E frequency inverter provides robust control within the 8200-series architecture. This high-performance AC drive is designed to optimize energy consumption and maintain process stability in demanding industrial automation environments, supporting motors rated up to 4 HP (3.0 kW) at 460V.
Key Features
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Precise Motor Management: Advanced electronic control algorithms ensure stable speed control and dynamic torque response under varying load conditions.
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Modular Design: Seamlessly integrates with various plug-in communication and I/O modules from the Lenze 8200 range.
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Energy Efficiency: Optimizes motor power consumption during partial-load operations.
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Robust Construction: Built to withstand harsh industrial environments, ensuring long-term operational reliability.
Applications
- Conveyor systems and material handling lines
- Industrial pumps, fans, and ventilation systems
- Packaging machinery and processing equipment
- Machine tool auxiliary drives and positioning systems
Technical Specifications
| Manufacturer |
Lenze |
| Model / SKU |
EVF8244-E |
| Alternative Item Code |
33.8244_E |
| Series |
8200-series |
| Product Type |
AC Drive / Frequency Inverter |
| Power Rating |
3.0 kW / 4.0 HP |
| Rated Input Voltage |
3-phase 400 V AC to 460 V AC |
| Product Lifecycle Phase |
Phase-Out (Legacy Support Available) |
| Dimensions (W x H x D) |
10.20 cm x 40.60 cm x 25.40 cm |
| Shipping Weight |
5.10 kg |
| Commodity Code |
85044095 |
Empirical Engineering Insights
Alternative Models & Compatibility
The EVF8244-E belongs to the legacy 8200 Vector family. When replacing this unit in existing panels, note that modern alternatives like the Lenze i550 series do not share the same physical footprint or terminal configurations. Retaining exact spares like the EVF8244-E avoids costly mechanical panel modifications and PLC program rewrites.
Application Pitfalls & Engineering Notes
This drive relies heavily on vertical convection cooling. In enclosed control panels, ensure a minimum clearance of 100 mm above and below the unit. If ambient temperatures inside the enclosure exceed 40 degC, the continuous output current must be derated to prevent thermal overload faults.
Commissioning & Wiring Tips
Parameterization can be performed using the EMZ8201BB keypad module or via the LECOM interface using Global Drive Control (GDC) software. Always ensure that the motor cable is shielded and that the shield is grounded with a low-impedance connection directly at the drive's mounting plate to mitigate electromagnetic interference (EMI).
Installation Guidelines
CRITICAL WARNING: Hazardous electrical voltages remain present in the DC bus capacitors (terminals UG and +UG) for up to 5 minutes after disconnecting the mains supply. Verify that the DC bus voltage has discharged to 0 VDC using a calibrated multimeter before performing any wiring, terminal modifications, or maintenance.
1
Mount the drive vertically on a flat, vibration-free mounting plate inside a suitable industrial enclosure.
2
Connect the protective earth (PE) conductor to the designated grounding terminal prior to making any other electrical connections.
3
Wire the 3-phase AC mains input to terminals L1, L2, and L3 using appropriately sized branch circuit protection.
4
Connect the shielded motor cable to output terminals U, V, and W, ensuring the shield clamp is securely fastened to the ground plane.