Lenze E94AZMS0094 Mains RFI Filter
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Product Information
The Lenze E94AZMS0094 is a 3-phase mains RFI filter designed for suppression of high-frequency electrical interference in Lenze Servo Drives 9400 series applications. Rated for operation on 3-phase AC power networks from 400 V AC to 480 V AC across 50/60 Hz supply frequencies, this EMC filter carries a nominal continuous current rating of 9.4 A at an ambient operating temperature of 40°C. Engineered specifically for seamless integration alongside Lenze 9400 HighLine and StateLine Single Drive controllers, the IP20-rated hardware suppresses mains-borne radio interference emissions to maintain compliance with EN 61800-3 Category C1 and C2 standards when installed with permitted shielded motor cables.
Integrating the E94AZMS0094 into a control cabinet involves direct panel mounting and 3-phase power line wiring between the incoming mains supply and the drive controller. As a fully passive noise suppression module, the unit requires no parameter setup, firmware loading, or software programming, enabling quick drop-in installation when commissioning a spare. When replacing an existing unit, technicians should verify that the replacement matches the 9.4 A current rating and 400/480 V operating voltage to maintain safe system operation and prevent thermal overload. ABC Industrial Parts offers verified replacement units to assist maintenance teams in restoring filter functionality without operational delays.
Because the E94AZMS0094 operates as a passive line component, troubleshooting focuses on physical connections and line supply checks rather than electronic diagnostics. First-line inspections should verify phase-to-phase supply voltages, line frequency stability, ground conductor integrity, and secure terminal wiring. With a minimal thermal power loss of 11 W, excessive heating or localized discoloration typically indicates loose terminal contacts or electrical breakdown. Internal physical damage or insulation breakdown within the filter assembly cannot be repaired on-site; replacing the component with a tested unit from ABC Industrial Parts is recommended to restore cabinet interference protection and safeguard upstream PLCs and sensor systems.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | E94AZMS0094 |
| Model / Type | Mains RFI Filter |
| Product Family | Servo Drives 9400 |
| Supply Voltage Range | 3x 400 V AC to 480 V AC |
| Rated Continuous Current | 9.4 A (at 40°C) |
| Mains Frequency | 50/60 Hz (48 Hz to 62 Hz) |
| Number of Phases | 3-Phase |
| Thermal Power Loss | 11 W |
| Protection Rating | IP20 |
| EMC Standard Compliance | EN 61800-3 Category C1 / C2 |
Replacement and Spare Part Considerations
When replacing the Lenze E94AZMS0094 mains filter, verify that the physical installation space and mounting orientation match the IP20 panel enclosure layout inside the control cabinet. Ensuring tight, low-resistance terminal connections for all three mains phases and the protective earth conductor is critical for maintaining effective noise suppression and safe current distribution.
Because the E94AZMS0094 is engineered for the Lenze Servo Drives 9400 family—specifically StateLine and HighLine Single Drive controllers—confirming that the drive current requirements match the 9.4 A continuous rating is essential. Proper installation with permitted shielded motor cables ensures full compliance with EN 61800-3 Category C1 and C2 standards, preventing electrical noise feedback into sensitive nearby sensors and PLCs.
Frequently Asked Questions
Which drive controllers are compatible with the Lenze E94AZMS0094 mains filter?
The E94AZMS0094 is compatible with Lenze Servo Drives 9400 series, including 9400 HighLine and 9400 StateLine Single Drive controllers.
Does the Lenze E94AZMS0094 require software configuration or parameter setup?
No, the E94AZMS0094 is a passive hardware component and requires no software configuration, parameter programming, or firmware updates during commissioning.
What are the primary electrical ratings for the E94AZMS0094 filter?
The filter operates on 3-phase AC supply voltages from 400 V to 480 V at 50/60 Hz, with a nominal continuous current rating of 9.4 A at an ambient temperature of 40°C.
How does the E94AZMS0094 assist with EMC compliance?
It suppresses high-frequency mains-borne radio interference emissions, allowing drive systems to meet European standard EN 61800-3 Category C1 and C2 limits when used with permitted shielded motor cables.
How much thermal power loss does the E94AZMS0094 produce during operation?
The E94AZMS0094 dissipates a minimal thermal power loss of 11 W under full load, preventing heat buildup within industrial control cabinets.
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Disclaimer:
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