
| ABB / INDUSTRIAL AUTOMATION | OverviewSpecificationsIntegrationRelated ModelsFAQ |
A compact book-style, two-stage EMC/RFI filter for three-phase drive systems. It reduces conducted interference between the drive and the mains while supporting long motor-cable applications.
| OPERATING PROFILE | |
|---|---|
| Product identity | FN258-16/29 / 3BHB011317R0001 |
| Product function | Three-phase EMC/RFI mains filter |
| Rated current | 16 A at 50 C; 17.5 A at 40 C |
| Rated phase-to-phase voltage | 480 V AC |
| Rated phase-to-ground voltage | 277 V AC |
| Operating frequency | DC to 60 Hz |
| Typical drive power | 7.5 kW |
| Leakage current | 18.3 mA at 440 V AC / 50 Hz |
| Power loss | 20 W at 25 C / 50 Hz |
| Filter configuration | Two-stage, three-phase delta |
| Termination | Terminal block; -29 connection format |
| Mounting | Chassis mount |
| Operating temperature | -25 to +100 C |
| Dimensions | 305 x 55 x 142 mm |
| Weight | 1.4 kg |
| Approvals | CSA, ENEC and UR |
| MAINS SIDE Installed between the three-phase supply and the drive input. |
FILTER CORE Two attenuation stages suppress conducted common-mode and differential-mode noise. |
DRIVE SIDE Suited to inverter and power-drive systems, including installations with long motor cables. |
CABINET DESIGN Book-style housing reduces panel width while chassis mounting supports a low-impedance earth path. |
| Q1 | What must match before ordering this filter? Confirm the three-phase line voltage, continuous input current, drive power, connection format and available cabinet space. |
| Q2 | Can the filter be selected only from motor power? No. Drive input current and supply voltage are the primary checks; motor power is a supporting selection value. |
| Q3 | What does the /29 suffix affect? It denotes the connection format used on this FN258 size. The installed cable and terminal arrangement should match. |
| Q4 | Is protective earthing important for EMC performance? Yes. A short, broad and low-impedance chassis connection is essential for effective high-frequency attenuation. |
| Q5 | Can a higher-current FN258 replace this unit directly? Electrical capacity may increase, but dimensions, terminals, leakage current and cabinet layout must also be checked. |
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