Lenze 384066 EZN2-004A001 3-Phase Mains Filter
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Product Information
The Lenze 384066 EZN2-004A001 is a 3-phase net filter engineered for radio frequency interference (RFI) suppression in industrial variable frequency drive applications. Designed as part of the Lenze EZN2 series mains filters, this passive power quality component reduces high-frequency electromagnetic noise fed back into the electrical mains by switching drive electronics. Operating at up to 480 V AC across a frequency range of 48 Hz to 62 Hz with a continuous current rating of 4 A, it provides crucial line filtration for electric motor drives in factory automation, packaging machinery, material handling, and machine tool control panels.
Electrical integration is handled via heavy-duty industrial screw terminals designed for incoming mains line feeds and load connections directly to the inverter input terminals. As a completely passive noise filter, the Lenze 384066 EZN2-004A001 requires no software programming, parameter configuration, or firmware alignment when replacing a damaged unit. Commissioning a spare involves verifying that the line voltage, operating current, and 3-phase wiring connections match the original installation. Maintenance technicians can rely on ABC Industrial Parts to supply tested replacement hardware that drops into existing cabinet structures without circuit modification.
Because the unit is a passive line filter without status display screens or diagnostic LEDs, operational verification relies on electrical measurement and system line monitoring. First-line troubleshooting should include checking phase-to-phase terminal voltage, inspecting screw terminal tightness, and confirming that connected load current does not exceed the 4 A rating. Internal winding insulation breakdown or component failure within the filter casing cannot be serviced in the field. When high-frequency feedback causes interference across upstream sensors or control equipment, replacing the filter with a verified spare from ABC Industrial Parts provides a direct solution to maintain EMC directive compliance.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 384066 |
| Model / Type | EZN2-004A001 |
| Component Type | Mains Filter |
| Product Family | EZN2 Series Mains Filters |
| Rated Current | 4 A |
| Maximum Operating Voltage | 480 V AC |
| Number of Phases | 3 |
| Frequency Range | 48 - 62 Hz |
| Terminal Type | Screw Terminals |
Replacement and Spare Part Considerations
When replacing a Lenze 384066 EZN2-004A001 mains filter, verify that the application electrical parameters do not exceed 480 V AC and a continuous 4 A load current. This model is engineered to operate seamlessly alongside Lenze 8200 series frequency inverters and other 3-phase drive systems. Matching both the line voltage and current specification is essential to avoid thermal overload or inadequate electromagnetic noise suppression across the drive power network.
Physical replacement requires straightforward mechanical mounting and connection of the 3-phase line and load wiring using the built-in screw terminals. Ensure power is fully isolated before swapping units, and inspect wire terminations for proper torque and insulation integrity. Because this passive unit contains no digital parameters or stored memory, no software setup is required after installation.
Frequently Asked Questions
What is the main function of the Lenze 384066 EZN2-004A001 mains filter?
It suppresses high-frequency radio interference and electromagnetic noise generated by variable frequency drives, protecting upstream control devices and helping machinery achieve EMC compliance.
What electrical ratings apply to the Lenze 384066 filter?
The filter is rated for 3-phase operating voltages up to 480 V AC, continuous currents up to 4 A, and power supply frequencies from 48 Hz to 62 Hz.
Which drive platforms are compatible with the Lenze EZN2-004A001?
It is engineered for integration with legacy Lenze 8200 series frequency inverters and general 3-phase drive systems operating within 4 A and 480 V AC limits.
Does the Lenze 384066 require any software programming or parameters during replacement?
No. The EZN2-004A001 is a passive electrical component and requires no parameter transfer, software setup, or firmware configuration.
How are electrical power cables connected to the EZN2-004A001 filter?
Power line and drive load connections are secured directly using industrial screw terminals.
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Disclaimer:
We are not an authorised distributor of Lenze.
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