Lenze 391539 EZN3A0110H030 3-Phase Mains Choke
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Product Information
The Lenze 391539 EZN3A0110H030 is a 3-phase mains choke from the EZN drive accessory family, engineered for use with Lenze frequency inverters and servo drive controllers. Designed for 3-phase AC power systems operating between 400 V AC and 480 V AC, this line reactor delivers a continuous rated current capacity of 11 A with a nominal inductance of 3.0 mH. Positioned on the AC supply side ahead of the drive input rectifier, the component introduces passive inductive impedance to attenuate power line harmonics and protect drive electronics against transient overvoltage spikes.
Commissioning a replacement EZN3A0110H030 involves direct physical mounting and 3-phase electrical terminal connection. Because the mains choke is a passive electromagnetic device, it requires no software configuration, parameter transfers, program loading, or firmware matching. Technicians replacing an existing unit must ensure that phase conductors are properly wired and that the replacement spare matches the continuous 11 A current rating and 3.0 mH inductance specification to ensure proper harmonic filtering and capacitor protection. Support from ABC Industrial Parts can assist maintenance teams in sourcing verified replacement units for active production lines.
As a passive component, the EZN3A0110H030 does not feature integrated diagnostic LEDs, status indicators, or digital fault code reporting. First-line field checks focus on measuring supply voltage balance across all three phases, verifying wiring terminal integrity, and inspecting the unit for signs of thermal stress. Internal winding degradation or insulation breakdowns cannot be serviced in the field, making physical replacement the established path to restoring operational reliability. ABC Industrial Parts supplies tested exchange and spare units to resolve power quality issues quickly.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 391539 |
| Model / Type | EZN3A0110H030 |
| Component Type | 3-Phase Mains Choke |
| Product Family | EZN3 |
| Rated Current | 11 A |
| Inductance | 3 mH |
| Operating Voltage Range | 400 - 480 V AC |
| Number of Phases | 3 |
Replacement and Spare Part Considerations
When replacing a Lenze 391539 EZN3A0110H030 mains choke, selecting a unit with identical electrical characteristics is required to maintain system power quality and drive protection. Any spare or replacement choke must match or exceed the 11 A continuous current capacity and maintain the 3.0 mH nominal inductance across the 400 V to 480 V AC operating range.
Because this line reactor functions as a purely inductive filtering component, installation does not involve software settings, drive parameter modifications, or network commissioning. Service personnel should verify physical cabinet mounting compatibility and ensure all three phase supply connections are securely wired prior to reapplying line power.
Frequently Asked Questions
What are the primary electrical ratings for the Lenze 391539 EZN3A0110H030?
The Lenze 391539 EZN3A0110H030 is a 3-phase mains choke rated for an 11 A continuous current and 3.0 mH inductance across an operating voltage range of 400 V AC to 480 V AC.
Is parameter configuration required when swapping an EZN3A0110H030 line choke?
No configuration or software setup is needed. The EZN3A0110H030 is a passive electromagnetic device that operates immediately upon proper physical mounting and electrical connection.
Which drive systems are compatible with the Lenze 391539 choke?
The EZN3A0110H030 is designed for use on the input mains side of Lenze frequency inverters and servo drive controllers requiring 11 A continuous current filtering in 3-phase 400 V to 480 V AC networks.
How do you diagnose issues with an EZN3A0110H030 line reactor?
Because the unit has no internal electronic diagnostic features, troubleshooting involves checking phase line voltage consistency, inspecting terminal block connections, and checking for phase imbalance or thermal damage.
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Specific firmware and hardware versions
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Disclaimer:
We are not an authorised distributor of Lenze.
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