Product Description:

The HLR01.1N-05K0-N15R0-A-007-NNNN is a brake resistor produced by Bosch Rexroth Indramat for the HLR Brake Resistors series. In regenerative drive systems, this component converts surplus kinetic energy from the DC bus into thermal energy so the drive controller can decelerate a motor without overvoltage faults. By placing the resistor in parallel with the converter, excess current is routed into a resistive load where it is safely dissipated. This operating method helps stabilize the DC bus during deceleration events that return energy from the motor to the drive.

This model provides a continuous braking capability of 5 kW, which is the thermal power the element can absorb during steady operation without exceeding its temperature limit. For short, high-energy stops, it can absorb 360 kWs before a cooling period is required. The maximum permitted on-time per duty cycle is 120 s, so the resistor must be disconnected after that interval to prevent overheating. A single braking pulse can last up to 9 s, making the unit suitable for rapid deceleration events in servo axes or hoisting drives. The assembly weighs 13 kg, so the mounting structure must support that load while maintaining airflow around the heat sink.

The enclosure has a depth of 490 mm, a height of 270 mm, and a width of 400 mm. These dimensions help with panel-space planning and clearance checks near wiring ducts, contactors, and other heat-producing components. Heat generated during braking cycles is released through finned aluminum plates that match the stated size envelope and help distribute temperature across the assembly. The unit is part of the HLR Brake Resistors series, and its terminals and resistance values are matched for use with compatible drive controllers in industrial motion systems.