Lenze 387072 EZN3A0150H024 3-Phase Mains Filter
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Product Information
The Lenze 387072, type reference EZN3A0150H024, is a 3-phase mains filter and line reactor belonging to the Lenze EZN product family. Designed for industrial automation networks, this passive component mitigates harmonic distortion, suppresses mains noise, and dampens transient current surges created during drive switching operations. Operating across a maximum supply voltage of 480 V AC at 48 to 62 Hz, it provides a rated current capacity of 24 A with an inductance rating of 3x1.5 mH. Constructed with an IP00 ingress protection rating, the unit requires mounting inside a protective enclosure or control cabinet to maintain electrical safety and prevent environmental contamination.
Integrating the Lenze 387072 requires inline 3-phase electrical connections positioned between the electrical supply grid and downstream motor drives. It is designed for seamless operation alongside Lenze 8200 Motec series and Lenze 9300 series frequency inverters across applications in packaging machinery, material handling, automotive manufacturing, and industrial HVAC systems. Commissioning a replacement filter is entirely hardware-based, requiring no software setup, firmware alignment, or parameter transfers. Technicians only need to verify correct phase wiring, conductor gauge sizing, and secure terminal torques. When replacing a damaged unit, sourcing a direct replacement through ABC Industrial Parts ensures straightforward installation with minimal machine downtime.
Because the Lenze 387072 is a passive inductive device, it contains no internal microprocessors, status LEDs, or digital diagnostics. First-line troubleshooting focuses on verifying incoming supply voltage stability, inspecting terminal block connections for thermal signs of degradation, and checking phase symmetry across all three supply lines. Winding failures or internal electrical insulation breakdown are non-serviceable on-site, making a unit swap with a tested replacement from ABC Industrial Parts the most direct path to restoring panel protection and drive system reliability.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 387072 |
| Model/Type | EZN3A0150H024 |
| Product Family | EZN |
| Component Type | Mains Filter / Line Reactor |
| Number of Phases | 3 |
| Rated Current | 24 A |
| Inductance | 3x1.5 mH |
| Maximum Supply Voltage | 480 V AC |
| Operating Frequency Range | 48 - 62 Hz |
| Ingress Protection Rating | IP00 |
Replacement and Spare Part Considerations
When selecting a replacement mains filter for an existing system, ensure the physical part number matches 387072 and type reference EZN3A0150H024. Matching the continuous rated current of 24 A and inductance of 3x1.5 mH is critical; installing a filter with lower ratings can cause overheating and nuisance tripping of upstream protection, while incorrect inductance values may fail to attenuate harmonics sufficiently.
Due to the IP00 protection rating, the unit must be housed inside a control cabinet or suitable chassis to prevent accidental contact with live electrical terminals. Ensure that adequate thermal clearance is maintained around the reactor coil assemblies to allow passive convective cooling during continuous motor drive operation under load.
Frequently Asked Questions
What is the function of the Lenze 387072 EZN3A0150H024 mains filter?
The Lenze 387072 is a 3-phase line reactor engineered to suppress line harmonics, damp current peaks, and reduce mains noise generated by switching operations in industrial drive installations.
Which drive series are compatible with the Lenze 387072 filter?
This filter is designed for integration with Lenze 8200 Motec series and Lenze 9300 series frequency inverters.
Does replacing the Lenze EZN3A0150H024 require software or parameter configuration?
No. As a passive inductive component, the Lenze 387072 requires no software configuration, parameter transfers, or programming. It is installed purely via mechanical mounting and 3-phase power wiring.
What are the key electrical ratings for the Lenze 387072 line reactor?
The unit supports 3-phase supply voltages up to 480 V AC at 48 to 62 Hz, with a rated current capacity of 24 A and an inductance of 3x1.5 mH.
Where should the Lenze 387072 filter be mounted?
Because it carries an IP00 protection rating, the filter must be installed inside an enclosed control panel or electrical cabinet to protect against contact with live parts and environmental exposure.
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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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