Lenze 390306 EZF1018A002 EMC / RFI Filter

The Lenze 390306 (type EZF1018A002) is a 3-phase EMC/RFI mains filter designed for high-frequency noise suppression in industrial drive applications. Operating at a nominal voltage of 400 V AC up to a maximum of 480 V AC, this filter handles a continuous rated current of 18 A. Built inside a compact IP20 housing, the component attenuates line-conducted high-frequency interference generated by inverter switching actions, preventing unwanted electrical noise from feeding back into the upstream power distribution network.

Integrating the EZF1018A002 filter into a panel layout is straightforward, supporting footprint installation directly behind or beneath compatible Lenze 8200 series frequency inverters as well as standard side-by-side mounting. Connection is made directly on the 3-phase AC supply lines feeding the inverter input. As a passive hardware device, putting a replacement unit into service involves no software setup, parameter transfers, or programming steps. Proper terminal wiring, clean ground contact, and mechanical mounting alignment are all that is required. ABC Industrial Parts can assist in sourcing tested replacement filters to help restore system compliance without operational delays.

Because this mains filter operates as a passive line component, diagnostic checks focus on panel supply integrity, proper ground bonding, and mechanical terminal tightness. Unresolved line-conducted emissions can lead to cross-talk or disturbance in adjacent control equipment on the same grid line. When electrical or physical degradation occurs, replacing the filter provides a direct, low-risk route to re-establishing EN 61800-3 and EN 55011 compliance, with ABC Industrial Parts offering replacement units to keep machinery operating within required limits.