Product Description:

The HVE04.2-W075N/S201 is a power supply unit manufactured by Bosch Rexroth Indramat for the HVE Power Supply Units series. Installed at the front of a drive stack, it rectifies incoming three-phase power and feeds the common DC bus. It also furnishes auxiliary control voltage lines so synchronous and asynchronous drives in automated production cells receive consistent energy. This arrangement supports shared power distribution in multi-axis systems and reduces the need for separate supply sections on each drive module.

Its rated output on the DC link reaches 75 kW, allowing multiple axes to start simultaneously without voltage sag. While supplying that level, internal conversion losses are held to 175 W, which helps limit added cabinet heat. The built-in bleeder resistor dissipates regenerative peaks; it handles 2.5 kW continuously and can absorb surges up to 270 kW during fast deceleration events. Maximum mains demand stays at 500 VA because the unit mainly passes energy to the DC bus rather than storing large amounts of it. Internal air cooling with a blower moves heat across the heat sink, and the DC side remains unregulated, so downstream drives control their own input stages. A 300 W auxiliary output supplies the 24 V control voltage rail, and the unit is design version 2 in series code 04.

Its energy-buffer section contains 3.75 mF of internal capacitance, and external modules up to 10 mF can be connected when bus cables are longer or load cycles are heavier. The storage network can return as much as 250 kWs before the bleeder becomes saturated, which helps protect semiconductors from overvoltage during regenerative operation. Despite these capacities, the housing weighs only 28 kg and occupies 250 mm of width, which helps keep cabinet layout manageable beside inverter racks. The compact front-mounted format leaves room for adjacent modules while keeping the shared DC supply section in one place inside the cabinet.