Product Description:

The HLB01.1C-01K0-N06R0 resistor brake unit is produced by Bosch Rexroth Indramat and belongs to the HLB Resistor Brake Units series. It serves as an external braking module for multi-axis drive packages, channeling surplus kinetic energy into a dedicated resistor so the DC link voltage stays within the allowable range during fast stops or load reversals. This protective function helps automation equipment avoid uncontrolled shutdowns and maintain stable operation during high-inertia motion sequences.

The unit delivers a continuous braking power of 1 kW and can briefly rise to a peak of 100 kW, which allows short, intensive deceleration bursts without requiring a larger resistor assembly. Its nominal brake resistance is 6 ohms, which affects the current drawn from the common 700 VDC bus and the resulting thermal load on the enclosure. The module engages automatically once the bus reaches a turn-on threshold of 820 V, then remains enabled for a maximum on-time of 1 s. After that interval, the resistor requires a cooling period before the next braking event. These electrical values are matched to compatible drive supply sections so brake current remains controlled and the DC bus is protected from excessive voltage rise.

Control circuitry is powered from a 24 VDC line that draws only 14 W, so logic wiring can share the same low-voltage supply used for drive I/O modules. During a braking pulse, the resistor absorbs up to 100 kWs of energy before the thermal cutoff intervenes, which suits axes with large flywheels or press rams. The aluminum housing measures 65 mm in width, 252 mm in depth, and 352 mm in height, allowing panel mounting beside inverters while remaining within IP20 touch-safe protection. With a mass of 5.8 kg, the assembly provides the thermal mass needed for repeated stops in cyclic duty.