Product Description:

The HLR01.1N-06K5-N18R0-A-007-NNNN brake resistor is produced by Bosch Rexroth Indramat and belongs to the HLR Brake Resistors series. In an automation system, it pairs with drive controllers to dissipate excess kinetic energy that returns to the DC bus during motor deceleration, preventing overvoltage trips and protecting connected power electronics. By converting regenerated electrical energy into heat, the unit helps keep the drive line within its allowable voltage window. This function is useful on axes that decelerate heavy loads or reverse direction frequently, where returned energy can rise quickly.

This model is designed for a DC link rated at DC 700 V, so it matches drives that operate on that intermediate circuit level. During continuous duty, it can absorb 6.5 kW of thermal power, while short overload events are covered by a peak capability of 33 kW. The resistor can remain active for up to 120 s at a time, and within that window a single braking event may last 21 s before the element must cool. Over one complete overload cycle, the component can convert 686 kWs of energy, which limits repeated braking demand during high-inertia stopping sequences. These operating limits help control how often rapid deceleration can be repeated without exceeding the resistor's thermal capacity.

The housing is protected to IP20, allowing installation inside a ventilated control cabinet where accidental finger contact must be prevented but pressurized washdown is not expected. Its footprint is compact for its rating, measuring 400 mm in width, 270 mm in height, and 490 mm in depth, which helps with panel layout when multiple resistors or additional power components share the same enclosure. Adequate airflow must be provided around the enclosure so the resistor can release generated heat during operation. Cabinet placement should also leave space between the resistor and heat-sensitive wiring or nearby modules.