Lenze EZN3A0037H090 Mains Filter A (Mounted)
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Product Information
The Lenze EZN3A0037H090 is a 3-phase footprint mains filter belonging to the EZN3 family, engineered to mitigate high-frequency radio interference on supply lines serving variable frequency drives. Designated as Mains Filter A (Mounted), this power line component operates in 3-phase AC networks up to 480 V AC (+10%) at 50/60 Hz, across an allowable frequency range of 45 Hz to 65 Hz. It provides continuous noise suppression at a rated current of 3.7 A. Designed to satisfy EN 55011 Class A limits and EN 61800-3 Category C2 standards, the filter attenuates mains-borne radio noise generated by switching power electronics, safeguarding line-side electrical infrastructure and nearby automated control equipment.
Constructed for footprint mounting, the EZN3A0037H090 mounts directly beneath or alongside Lenze 8200 vector and Lenze 8200 motif drive frames, minimizing overall enclosure depth and streamlining line-side wiring in tight control cabinets. As a passive electrical device, commissioning a spare filter requires no parameter configuration, firmware loading, or software programming. Swap procedures involve isolating mains power, mounting the unit mechanically, wiring the line and load terminals correctly, and ensuring robust low-impedance protective earth grounding. ABC Industrial Parts provides pre-tested replacement units to help maintenance teams quickly swap out compromised filters without altering existing drive configurations.
Because this component is a passive filter module, it does not feature active status LEDs, digital readout displays, or network diagnostic outputs. Field troubleshooting focuses on line-side checks, including verifying that incoming 3-phase voltages remain within specification, ensuring load current does not exceed 3.7 A, and confirming tight terminal connections. Technicians should also verify that shielded motor cable lengths remain within the specified 90-meter limit required for Category C2 compliance. In cases of dielectric breakdown or physical terminal damage caused by line surges, internal repairs are not possible; exchanging the damaged module for a replacement from ABC Industrial Parts represents the direct path back to clean machine operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | EZN3A0037H090 |
| Model / Type | Mains Filter A (Mounted) |
| Product Family | EZN3 |
| Component Type | Mains Filter |
| Rated Current | 3.7 A |
| Maximum Voltage | 480 V AC (+10%) |
| Mains Frequency Range | 50/60 Hz (45 to 65 Hz) |
| Filter Class | Class A (EN 55011) / Category C2 (EN 61800-3) |
| Maximum Shielded Motor Cable Length | 90 m |
| Mounting Style | Footprint / Under-Drive |
Replacement and Spare Part Considerations
When selecting a replacement mains filter for an active production line, the electrical ratings of the EZN3A0037H090 must match the drive power specifications exactly. This unit is rated for 3-phase networks up to 480 V AC (+10%) with a continuous current rating of 3.7 A. Installing this filter with a drive drawing higher continuous current will lead to excessive thermal build-up and potential filter breakdown. Compatibility is verified for Lenze 8200 vector and Lenze 8200 motif series frequency inverters.
Maintaining EMC Class A and Category C2 compliance requires adherence to system installation guidelines. The EZN3A0037H090 supports shielded motor cable runs up to 90 meters. If longer motor cables are deployed, filter performance may degrade, potentially allowing high-frequency noise onto the supply line. During replacement, ensure low-resistance ground connections between the filter body, cabinet mounting backplate, and drive enclosure to maintain optimal noise suppression.
Frequently Asked Questions
What is the continuous current rating of the Lenze EZN3A0037H090 mains filter?
The Lenze EZN3A0037H090 has a continuous current rating of 3.7 A across 3-phase AC networks up to 480 V AC (+10%).
Which drive series are compatible with the EZN3A0037H090 filter?
The EZN3A0037H090 is designed specifically for footprint mounting with Lenze 8200 vector and Lenze 8200 motif variable frequency drives.
Does the EZN3A0037H090 mains filter require software configuration or parameter setup?
No software, parameter transfer, or firmware configuration is required. The EZN3A0037H090 is a passive hardware filter that functions directly upon correct physical wiring and grounding.
What maximum motor cable length is supported for Category C2 compliance?
The EZN3A0037H090 supports shielded motor cable lengths of up to 90 meters while maintaining EN 61800-3 Category C2 EMC compliance.
How is the EZN3A0037H090 mounted inside a control cabinet?
It features a footprint mounting style that installs directly beneath or alongside the compatible Lenze drive cabinet, saving panel space and simplifying line-side power connections.
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Specific firmware and hardware versions
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Disclaimer:
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