Product Description:

The HLR01.1N-1K08-N05R0-A-007-NNNN is a brake resistor built by Bosch Rexroth Indramat within the HLR Brake Resistors series. Installed on the DC link of an inverter or servo drive, the unit converts regenerative energy into heat so that overvoltage does not develop on the power bus during motor deceleration. By dissipating this excess energy, the component protects both the drive electronics and the connected motor from voltage spikes that can occur in rapid-stop or cyclic applications.

An electrical resistance of 5.8 Ω limits the current that flows when the DC bus voltage exceeds the chopper threshold, while a continuous braking power rating of 1.08 kW indicates the heat the resistor can release indefinitely without exceeding its thermal limit. For short, high-energy stops, the device tolerates a peak braking power of 130 kW, but only if that surge is kept inside the maximum on-time window of 1 s. The total thermal capacity is 130 kWs, reflecting how much energy can be absorbed in a single pulse before the element must cool. These values are useful for sizing the resistor in duty cycles that include both steady-state absorption and occasional high-power pulses from large inertial loads.

The mechanical envelope simplifies panel layout: the assembly weighs 8 kg, spreads horizontally to 350 mm, rises vertically to 300 mm, and extends in depth to 220 mm. These dimensions allow the housing to mount beside drive modules while maintaining clearance for airflow channels demanded by the thermal load. Because the volume of the casing influences surface area, the stated width, height, and depth combine with the fin design to passively transfer heat to surrounding air, ensuring that the resistor’s continuous and pulse power limits remain achievable without additional forced cooling hardware.