Product Description:

The HZF02.1-W045N is a combining filter module produced by Bosch Rexroth Indramat and part of the HZF Filter Modules series. It is intended for cabinet installation between the mains and multiple drive controllers, where it combines phase currents and attenuates conducted interference sent back to the plant supply. By performing this line-filtering task, it supports electromagnetic compatibility and allows several inverters to share a common supply section within industrial automation systems. It also helps keep noise generated by one connected drive from spreading across the shared incoming line.

The module carries a continuous nominal current of 80 A, so it can support clustered drives whose combined consumption stays within that limit without exceeding its thermal profile. It accepts a three-phase input of 400 to 480 VAC, matching standard utility voltages used in many production plants. When energized, intrinsic dissipation appears as 200 W of basic losses that are present even at no load, while additional dissipation rises at 4.5 W/kW of connected motor power; these values must be considered when cabinet ventilation is planned. Physical dimensions of 498 mm in height, 175 mm in width, and 262 mm in depth allow installation with Indramat supply units inside a 600 mm deep control cabinet.

Under maximum utilization the thermal sum translates to a total power loss of 400 W, which sets the ceiling for forced-air cooling around the filter. The permissible mains frequency range of 50 to 60 Hz with a stability window of ±2 Hz keeps the internal reactors within their intended operating range. Line conductors land on terminal X1, which accepts up to 25 mm² copper for low-impedance connections at the stated current. With a mass of 25 kg, the module requires rigid panel mounting and is best located close to the supply busbars to minimize lead length and stray inductance.