Lenze EZF1009A002 EZF1-009A002 RFI Filter

The Lenze EZF1009A002, designated as model EZF1-009A002, is a 3-phase RFI filter from the EZF1 Series designed to suppress conducted radio frequency interference in variable frequency drive systems. Operating at a supply voltage of 3x 400/480 V AC with a continuous rated current of 9 A, this mains interference suppression filter prevents harmonic noise and electromagnetic disturbances from feeding back into the electrical supply grid. Housed in a compact IP20 enclosure, the unit provides noise attenuation to help industrial machinery meet EN 61800-3 EMC standards across applications in packaging machinery, material handling conveyors, textile manufacturing, and general machine building.

Electrical integration is handled via heavy-duty screw terminals for both mains supply input and filter output wiring. Putting a replacement EZF1009A002 into service requires no software programming, parameter configuration, or firmware setup because the passive filter architecture operates purely on electrical power flow. When replacing an existing unit, technicians must ensure that the maximum voltage rating of 480 V AC and 9 A current rating match the drive system specifications. ABC Industrial Parts supplies direct replacement units to simplify installation in existing control cabinets and multi-axis motion control systems.

Because the filter contains no active diagnostic indicators or electronic fault processing, troubleshooting relies on standard physical and electrical line verification. First-line checks should focus on verifying tight, low-resistance connections at the screw terminals, ensuring continuous grounding for adequate RFI suppression, and checking for terminal damage or overheating. If internal insulation fails or line filtering degrades, the filter unit cannot be serviced in the field and must be replaced entirely. Securing a replacement from ABC Industrial Parts allows facilities to restore compliant operation and protect downstream control electronics.