Lenze EZN3A0500H007 MAINS FILTER – 3-Phase 50A Line Filter
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Product Information
The Lenze EZN3A0500H007 is a 3-phase mains filter engineered for high-frequency interference suppression on the supply side of variable frequency inverter systems. As part of the Lenze EZN product family, this mains filter attenuates conductive radio frequency interference generated during drive switching operations. Operating with a continuous current rating of 50 A across 3-phase AC networks up to 480 V (+10%) at 50 Hz or 60 Hz, the component is built in an IP20 rated enclosure for control cabinet panel mounting. It prevents line-conducted electrical noise from feeding back into the primary grid, protecting adjacent digital controllers, sensors, and communication lines.
Integrating the EZN3A0500H007 into an industrial control cabinet involves standard terminal wiring between the 3-phase incoming power supply and the frequency drive inputs. Because this unit is a passive electromagnetic compatibility component, putting a replacement filter into service requires no software engineering, firmware flashing, or parameter configuration. Maintaining matched continuous current ratings and voltage limits across all three phases is essential to preserve proper motor drive pairing and grid stability. Support from ABC Industrial Parts is available for sourcing exact-spec replacement components for existing Lenze drive installations.
As a passive electrical line filter, the EZN3A0500H007 does not feature active digital diagnostic displays, fault logs, or status LEDs. Troubleshooting in the panel involves inspecting physical terminal connections, checking phase voltage continuity, and monitoring for signs of overheating or electrical stress. Internal component breakdown or degraded filtering performance cannot be serviced at the board level in the field, making replacement with a functional spare unit the standard route to restore proper noise suppression and return equipment to operation. ABC Industrial Parts provides tested replacement units to support rapid system recovery.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EZN3A0500H007 |
| Model / Type | MAINS FILTER |
| Product Family | EZN |
| Component Type | Mains Filter |
| Rated Current | 50 A |
| Max Supply Voltage | 480 V AC (+10%) |
| Number of Phases | 3 |
| Mains Frequency Range | 50 - 60 Hz |
| Ingress Protection Rating | IP20 |
Replacement and Spare Part Considerations
Replacing an original filter in an existing Lenze drive assembly with part number EZN3A0500H007 ensures precise mechanical and electrical compatibility without requiring cabinet panel modifications. Key specifications must match the original installation, including the 50 A continuous current capacity, 3-phase electrical configuration, and maximum supply limit of 480 V AC across 50/60 Hz grid frequencies. Selecting an incorrectly rated filter risks inadequate noise suppression or thermal overload during high-demand motor drive operations.
The compact IP20 housing allows direct panel mounting inside industrial enclosures. Installation requires making clean, secure wiring connections at the mains and load terminals, alongside establishing a reliable ground connection to ensure maximum electromagnetic interference dampening. Because the unit contains no programmable microcontrollers, commissioning is complete as soon as physical wiring and mechanical mounting are finalized and verified.
Frequently Asked Questions
What is the primary function of the Lenze EZN3A0500H007 mains filter?
The EZN3A0500H007 attenuates high-frequency conductible radio interference generated on the supply side by 3-phase variable frequency inverters, helping maintain electromagnetic compatibility (EMC) in industrial drive cabinets.
What key electrical specifications must be verified when selecting a replacement?
You must confirm a 50 A continuous current rating, 3-phase capability, a maximum supply voltage rating of 480 V AC (+10%), and compatibility with 50 Hz or 60 Hz mains power.
Does the EZN3A0500H007 require any software setup or configuration?
No, the Lenze EZN3A0500H007 is a passive line filter and operates entirely via physical terminal connections without needing programming, firmware alignment, or parameter transfer.
How are field faults diagnosed for this mains filter?
Field diagnosis involves checking phase voltage continuity across all terminals, inspecting wiring connections for proper tightness, and looking for visual signs of thermal damage. Internal filter faults cannot be serviced in the field and require replacing the complete unit.
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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.
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