Product Description:

The NFE01.1-230-003 mains filter is produced by Bosch Rexroth Indramat within the NFE Mains Filters series. It is installed between the AC supply and drive components to attenuate conducted interference and to protect sensitive power electronics from high-frequency line noise in automated machinery. By providing a defined impedance path and differential-mode noise suppression, the unit helps controllers meet electromagnetic compatibility limits on factory floors. The compact metal housing allows panel mounting close to drive converters without extra shielding hardware.

This filter is designed for single-phase distribution; it accepts a single input phase at a nominal voltage of 230 V. Under continuous operation, it can carry a rated current of 3 A, making it suitable for low-power axes or control cabinets with modest demand. Mechanical construction provides an IP10 degree of protection, meaning the enclosure guards against large solid objects while remaining open to natural convection for cooling. During type testing, the insulation between the line conductors withstands a line-to-line test voltage of 2125 VDC for the specified period, confirming clearance and creepage distances that prevent dielectric failure when the filter is connected directly to plant mains.

In routine verification, each production unit endures a line/neutral-to-protective-earth test voltage of 2800 VDC applied for a 2 s test duration to reveal latent insulation faults. Thermal design permits an overload current of 1.5 × INenn, and this elevated loading is allowed for 1 min per hour so short inrush or braking events can be accommodated without selecting the next filter size. This overload window supports brief current peaks during repetitive industrial duty cycles while maintaining insertion loss, temperature rise, and functional integrity.