Product Description:

The NAM04.2-480-0650-NN-120 power line form module is produced by Bosch Rexroth Indramat for the NAM Power Line Form Modules series. The unit sits between the mains and the drive DC bus, rectifying and filtering incoming power so the shared link that feeds several servo drives remains stable. By performing this power-conditioning role, the module supports coordinated multi-axis motion in transfer lines, packaging equipment, and other automated machinery that rely on regulated DC energy.

On the control side, the internal circuit is protected by a control breaker rated at 3.0 A, and the auxiliary electronics accept a supply frequency of 60 Hz. Command and status wiring is connected through a 13-pole plug; each control conductor must be at least 1.5 mm², while status lines can be as small as 1 mm². The logic section draws 15 VA during normal operation, and its preload circuit can source 1 A to precharge downstream capacitors. The DC link can be expanded to a maximum capacitance of 150 mF, which helps limit bus sag during regenerative events. Power bars accommodate a twin 240 mm² cable set and must be tightened to 35 Nm to maintain low impedance. A response contact rated at 24 VDC and 1 A transmits ready or fault information to higher-level controls.

Mechanically, the open-frame housing has an IP00 rating, so it must be installed inside a cabinet that prevents accidental contact and contamination. It is intended for control rooms that stay free of dripping water and operate within moderate temperature ranges. The chassis weighs 20 kg, which affects mounting support and handling during installation. When the internal crowbar fires, the unit can dissipate 1000 VA for up to 150 ms, allowing the drives to ride through brief overvoltage pulses.