HLR05.1W-70K0-N04R0-A-D7-NNNN

The Bosch Rexroth Indramat HLR05.1W-70K0-N04R0-A-D7-NNNN from the HLR Brake Resistors series combines robust design with precise braking control. This variant features a continuous power of 70 kW, operates on a DC 750 V bus nominal voltage, and provides a braking resistance of 4 Ω. Engineered for high-energy applications, it absorbs up to 8,400 kWs of regenerative energy and delivers a maximum braking power of 124 kW. Peak power ratings reach 106 kW at 650 Vdc and 168 kW at 820 Vdc, while its compact 35 mm² power connection cross section supports efficient current flow. It employs an air-cooling mechanism and is enclosed in an IP20 protection class housing.

Mounting requirements are straightforward: the resistor uses an internal, upright mounting style on a horizontal surface and must maintain a minimum clearance of 200 mm from heat-sensitive components. Return and feeder cables are recommended to be kept in parallel or tightly twisted, with a maximum length of 100 m to ensure optimal performance. Control is executed via the dedicated brake chopper, and the HLR variant is specified as a variant 1, line 5 braking resistor for seamless integration with Rexroth servo drives. Its durable construction and precise resistance tolerance (±10 %) ensure consistent thermal dissipation at full load.

Weighing approximately 145 kg, the HLR05.1W-70K0-N04R0-A-D7-NNNN is suited for heavy-duty industrial installations where regenerative energy must be safely managed. Temperatures on the resistor surface can reach 150 °C in operation, so appropriate safety precautions are advised. With global shipping available and a standard one-year warranty, this Bosch Rexroth Indramat brake resistor offers reliable, high-capacity energy management for demanding automation environments.