E94ASHE0244 LENZE

E94ASHE0244 Filter Modules

Product  Description：

Lenze Filter Modules, primarily encompassing RFI (Radio Frequency Interference) and mains filters, are high-performance electromagnetic compatibility (EMC) components designed for integration with Lenze frequency inverters and servo drives. These modules suppress both conducted and radiated high-frequency disturbances generated by the fast-switching power semiconductors of industrial drives. By attenuating electromagnetic interference, they ensure that automated drive machinery complies with stringent global EMC standards, preventing system malfunctions in nearby control electronics.

Product Parameters

The technical baseline of a Lenze Filter Module is tailored to industrial power grids and strict emission compliance:

• Mains Voltage Support: Designed for standard single-phase 230V AC grids and three-phase 400V to 480V AC industrial power networks.

• Rated Current Range: Scalable configurations accommodating continuous currents from low-power applications at 4A up to heavy-duty industrial demands exceeding 150A.

• EMC Compliance Categories: Engineered to achieve compliance with the European standard EN 61800-3, supporting Categories C1 (residential areas), C2 (commercial environments), and C3 (industrial networks).

• Integrated Choke Inductance: Features built-in low-frequency line chokes that assist in limiting mains current harmonics alongside high-frequency filtering.

• Ambient Operational Limits: Rated for full capacity operation in ambient temperatures up to 45°C, with allowable derating up to 55°C.

• Protection Rating: Typically enclosed in a compact IP20 rated housing, matching standard control cabinet component requirements.

Product Advantages

Lenze Filter Modules enhance drive system performance and simplify cabinet space engineering:

• Footprint-Optimized Design: Many modules are built with "bookcase" or "sub-assembly" geometries, allowing them to be mounted directly underneath or adjacent to the drive module to minimize panel depth.

• Integrated Suppression Capabilities: Combining RFI filtration and mains choke performance within a single housing reduces the total component count and simplifies internal panel wiring.

• Machinery Protection: Reduces high-frequency bearing currents and common-mode noise in connected AC motors, extending the physical lifespan of the driven mechanics.

• Seamless Drive Synergy: Specifically matched to the electrical profiles of Lenze i510, i550, i700, and i950 inverter series, eliminating the need for complex custom filter calculation.

• Reliable Shield Termination: Features optimized grounding surfaces and integrated shield clamps that allow field technicians to secure low-impedance motor cable shields quickly.

Product Applications

These electrical filters are vital across manufacturing environments where electronic precision and power drive systems coexist:

• Material Handling and Logistics: Suppressing electrical noise generated by multiple synchronized conveyor drives and sorting systems in distribution centers.

• Packaging and Labeling Systems: Ensuring that high-frequency servo movements do not interfere with nearby digital weight sensors and vision inspection cameras.

• HVAC and Fan Control: Providing compliant filtration for large commercial air handling units, pumps, and climate control infrastructure operating on public grids.

• Automotive Assembly Plants: Protecting sensitive robotic controllers and fieldbus networks from the heavy mains distortion caused by variable frequency drives.

• Textile Production Lines: Managing power quality for multi-spindle processing machinery requiring smooth, uninterrupted continuous speed tracking.

Important Precautions

To guarantee safe operation and maximum noise attenuation, the following installation guidelines must be strictly observed:

• High Leakage Current Warning: Due to internal filtering capacitors connected to ground, these modules exhibit high operational leakage current. A reliable, permanent protective earth (PE) connection with a minimum cross-section of 10 square millimeters is mandatory before applying voltage.

• Short Wiring Distances: Keep the connection cables between the filter module and the frequency inverter as short as possible. Long unshielded wires between the filter and the drive will act as antennas, re-radiating high-frequency noise.

• Isolation of Input and Output: Do not route the mains input cables of the filter parallel to or in the same cable conduit as the filtered output wires going to the drive, as this will bypass the filtration effects.

• Power Grid Compatibility: Ensure the filter matches the specific grid type. Standard RFI filters are designed for TN and TT grids; using them on ungrounded IT networks can cause component overheating and permanent damage unless specifically rated or modified.

• Voltage Discharge Wait Time: Internal capacitors retain residual voltage after main supply disconnection. Wait at least five minutes for complete internal discharge before accessing terminal connections or carrying out maintenance work.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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