Product Description:

The HLR01.1N-48K0-N02R4-A-007-NNNN is a brake resistor assembled by Bosch Rexroth Indramat for the HLR Brake Resistors series. In a multi-axis automation line, it dissipates excess DC-bus energy produced by regenerative deceleration so connected converters remain within safe voltage limits. By converting kinetic energy into heat, the module protects drives and motors during rapid stops, high-inertia reversals, and emergency braking cycles commonly found in packaging, material-handling, and machine-tool systems.

During continuous duty, the resistor absorbs up to 48 kW of thermal load when cooling airflow is sufficient for steady cyclic braking. Its element presents a resistance of 2.7 Ω, which sets the current drawn from the DC link and the instantaneous power that can be dissipated. Short bursts follow the Tcon profile, and the unit accepts full-load energy for as long as 30 s before a recovery interval is required. Within that period, the resistor can tolerate a peak heat input of 144 kW, allowing converters to clamp voltage during aggressive stops or synchronized axis deceleration. Over a complete braking sequence, the maximum permitted energy input is 4608 kWs, which matches the thermal capacity of the housing and internal conductor path.

The resistor is intended for the HCS04.2E-x0500 converter, so it can be wired directly to the DC terminals without additional balancing circuitry. Cabinet planning is supported by a depth of 490 mm, a width of 795 mm, and a height of 960 mm. This enclosure size requires clear airflow along the finned sides so heat can leave the module without obstruction. An installation weight of 102 kg calls for reinforced panel supports and suitable lifting assistance during mounting. These dimensions also need adequate cabinet clearance for secure placement and reliable heat dissipation.