Lenze 391541 EZN3A0060H054 3-Phase Mains Choke
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Product Information
The Lenze 391541 (model EZN3A0060H054) is a 3-phase mains choke designed for power conditioning and line interference suppression in industrial drive systems. Belonging to the Lenze EZN Series, this passive line reactor operates on 3-phase AC networks up to 480 V AC at 50/60 Hz. It is rated for a continuous current of 6 A and provides an inductance of 5.4 mH. Engineered to reduce mains power harmonics and mitigate supply voltage ripples, the device limits peak charging currents in frequency inverter DC-bus circuits, protecting upstream and downstream drive components from dangerous voltage spikes.
Power connectivity is handled via heavy-duty screw terminals for both mains input and load output wiring. Because the EZN3A0060H054 is a passive inductive component, commissioning a replacement unit requires no software parameters, firmware programming, or digital network configuration. Putting a spare unit into service involves powering down the enclosure, verifying phase wiring order, and securing the main supply connections to the screw terminals. Support from ABC Industrial Parts helps maintenance teams quickly acquire replacement units to restore line reactor functionality without modifying drive parameter sets.
As a passive power component without built-in electronic displays or status LEDs, operational checks focus on primary electrical and physical parameters. Basic first-line troubleshooting includes checking supply voltage balance across all three phases, verifying wire termination tightness at the screw terminals, and inspecting for physical signs of thermal stress. Internal winding degradation or insulation breakdown cannot be repaired on-site and necessitates replacing the choke. Installing a replacement unit from ABC Industrial Parts provides a direct solution to keep frequency inverter installations running reliably without expensive control panel retrofits.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 391541 |
| Model / Type | EZN3A0060H054 |
| Product Family | EZN Series |
| Component Type | 3-Phase Mains Choke |
| Rated Current | 6 A |
| Inductance | 5.4 mH |
| Maximum Supply Voltage | 480 V AC |
| Number of Phases | 3 |
| Rated Frequency | 50/60 Hz |
| Termination Type | Screw Terminals |
Replacement and Spare Part Considerations
When replacing an existing line reactor in a Lenze drive setup, verifying the exact part number 391541 and model EZN3A0060H054 ensures direct mechanical and electrical compatibility. Key electrical characteristics—specifically the 6 A continuous current rating, 5.4 mH inductance, and 480 V AC maximum operating voltage—must match the drive system requirements to prevent thermal overload or reduced filtering efficiency.
Because this component is parameter-free, swap-out procedures are straightforward and do not require software backup transfers or controller reprogramming. Ensure all power supplies are isolated before disconnecting the screw terminals, and verify that cable cross-sections and terminal torque match standard installation practices for 3-phase power circuits.
Frequently Asked Questions
What is the main purpose of the Lenze 391541 EZN3A0060H054 mains choke?
It acts as a passive 3-phase line reactor to attenuate current harmonics, limit peak charging currents, and filter line interference for frequency inverters operating on power networks up to 480 V AC.
Does the Lenze 391541 require software configuration or parameter setup?
No, the EZN3A0060H054 is a passive inductive component that operates without software, firmware, or parameter configuration.
What are the key electrical ratings for this line choke?
The unit is rated for a continuous current of 6 A, an inductance of 5.4 mH, a 3-phase supply voltage up to 480 V AC, and operating frequencies of 50/60 Hz.
How is the Lenze EZN3A0060H054 connected in a control panel?
It connects via heavy-duty screw terminals positioned between the 3-phase AC mains power supply and the load input of the frequency drive.
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Specific firmware and hardware versions
If you are working with specific hardware or firmware versions that are no longer available from the manufacturer, ABC Industrial Parts is your partner. When making your enquiry, clearly state which versions you need, we will then look at the possibilities of supplying those versions, so that your installations continue to function optimally.
Disclaimer:
We are not an authorised distributor of Lenze.
Product photos are for illustration purposes only and may differ from the actual product delivered.
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