Lenze 13439275 E94AZRP0084 Mains RFI Filter
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Product Information
The Lenze 13439275 (type E94AZRP0084) is a 3-phase mains RFI filter engineered to suppress high-frequency conducted radio interference generated by power switching in motor drives. Designed as part of the Lenze Servo Drives 9400 family, this passive power line component attenuates electrical noise on incoming supply lines to meet regulatory EMC standards and prevent interference with nearby sensors and instrumentation. The unit features an IP20 touch-safe housing rated for 3-phase AC mains operating from 400 V AC to 480 V AC across 48 Hz to 62 Hz grid frequencies, with a continuous rated output current of 8.4 A.
Integration and replacement are straightforward due to the physical design and screw terminal interface. Power connections are made via dual screw-terminal blocks for incoming 3-phase mains supply and filtered drive connections, along with dedicated protective conductor (PE) ground points. Because the E94AZRP0084 is a purely passive filter, commissioning a spare unit requires no software configuration, firmware alignment, or parameter programming. Mounting can be completed as a footprint sub-assembly directly beneath a compatible Lenze 9400 servo drive enclosure to save cabinet space, or panel-mounted on the side. ABC Industrial Parts can supply replacement units to rapidly restore proper EMC filtration in your system.
When troubleshooting power line or noise issues, routine inspections should verify input mains voltage within the 400 V AC to 480 V AC range, verify secure torque on all screw terminal connections, and ensure low-impedance grounding across the PE termination points. Because passive filter components contain internal power elements, physical damage, severe electrical stress, or insulation breakdown cannot be serviced in the field. When an internal fault or phase degradation occurs, replacing the unit or obtaining a tested exchange module through ABC Industrial Parts is the primary route to restore safe operation and protect surrounding drive automation equipment.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 13439275 |
| Model / Type | E94AZRP0084 |
| Component Type | Mains RFI Filter |
| Product Family | Servo Drives 9400 |
| Rated Current | 8.4 A |
| Supply Voltage Range | 400 - 480 V AC |
| Mains Frequency Range | 48 - 62 Hz |
| Phase Count | 3-Phase |
| Ingress Protection Rating | IP20 |
| Mounting Type | Footprint / Sub-assembly |
| Connection Type | Screw Terminals |
Replacement and Spare Part Considerations
When replacing a Lenze 13439275 (E94AZRP0084) filter, verify that the application electrical parameters match the component specifications, specifically the 3-phase 400 V AC to 480 V AC supply range and 8.4 A continuous current rating. Matching the current rating to the connected Lenze 9400 servo drive ensures effective attenuation without thermal overload or line choking.
Installing a replacement unit does not require programming tools, software setup, or firmware updates. Care should be taken to ensure that all PE grounding connections are securely terminated to maintain proper noise suppression and electrical safety, and that power connections are properly wired to the screw terminals.
The sub-assembly footprint mounting allows direct installation under the matching Lenze 9400 servo drive unit, preserving control panel space. Alternatively, side-mounting options can be used depending on cabinet layout and airflow requirements.
Frequently Asked Questions
What is the function of the Lenze 13439275 (E94AZRP0084) RFI filter?
It suppresses high-frequency conducted radio-frequency interference (RFI) generated by drive power switching, helping Lenze 9400 servo drives maintain EMC compliance and prevent electrical noise from disturbing other control equipment on the same power line.
Does the E94AZRP0084 require software configuration or parameter setup during replacement?
No. It is a purely passive power line filter that requires no software, programming tools, or parameter transfers during replacement.
What are the primary electrical supply ratings for this filter?
It is rated for 3-phase AC networks operating between 400 V AC and 480 V AC (+10%) at 48 Hz to 62 Hz, with a maximum continuous output current rating of 8.4 A.
How is the Lenze 13439275 filter physically mounted in a control cabinet?
It features a footprint sub-assembly design that allows it to mount directly beneath a matching Lenze 9400 servo drive enclosure to conserve panel space, or it can be side-mounted depending on cabinet layout.
What connections are required to wire the E94AZRP0084 filter?
It uses dual screw-terminal power blocks for 3-phase mains input wiring and filtered output connection to the drive, along with dedicated protective conductor (PE) termination points for grounding.
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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:
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