Product Description:

The NAM04.2-480-0450-NE-230 power line form module is produced by Bosch Rexroth Indramat and belongs to the NAM Power Line Form Modules series. It conditions mains energy and supplies the DC bus in multi-axis drive assemblies, enabling coordinated motion sequences in industrial automation systems that use Indramat inverters. It integrates with central supply sections and manages inrush currents, providing a preload path for capacitor banks.

The module’s steady auxiliary demand is 15 VA, a low figure that allows control electronics to remain energized without burdening the cabinet supply. For command logic, it accepts a control voltage of AC 230 V, matching standard plant utility levels. During capacitor charging, the unit can draw up to 1000 VA, so upstream wiring must be sized for that brief pulse. Once energized, it can pass a maximum DC link current of 450 A to connected drives, and its internal bus capacitance may be expanded to 150 mF to smooth voltage dips under load. The housing has an IP00 enclosure rating, so it must be mounted inside a closed electrical cabinet, and its 3K3 class limits operation to lightly conditioned shop-floor atmospheres. The X10 terminal strip offers 13 poles for logic and sensor connections.

A Q1 circuit breaker rated at 1.6 A guards the internal auxiliary circuit, and a response relay can switch AC 230 V at 1 A when a fault is detected. Main bus conductors land on K1 terminals sized for 2 × 120 mm² cable, and they must be secured with a tightening torque of 35 Nm. The power section withstands prospective short-circuit currents up to 100 kA, allowing use on high-capacity feeders without additional isolating reactors. For preload operation, it supplies 1 A of regulated current and follows a reference input of 1.1 A to shape the charging ramp. Despite its current capability, the assembly weighs only 20 kg, which helps reduce structural load inside the cabinet.