Product Description:

The HLR01.2N-0K06-N100R-E-003-NNNN brake resistor is manufactured by Bosch Rexroth Indramat and belongs to the HLR Brake Resistors series. As a dynamic braking component, it is wired across an inverter’s DC bus to dissipate surplus regenerative energy and prevent overvoltage when a servo axis decelerates. The unit relies on natural convection to shed heat, so no fan or coolant circuit is required. In factory automation, this resistor protects drive modules and helps keep bus voltage stable during rapid stops or cyclic motion. Because the braking function is handled electrically, excess motion energy is converted into heat instead of remaining on the DC link.

Electrically, the element presents a 100.00 ohm braking resistance referenced to a nominal bus of 300 V DC. Under continuous duty, it converts up to 0.06 kW of electrical power into heat without exceeding its steady-state temperature limit. For short energy bursts, it tolerates a peak dissipation of 1.38 kW, supported by an absorbable capacity of 1.00 kWs per braking event. That short-term capacity is useful when a moving load returns stored energy to the drive during abrupt speed changes. A bimetal device trips at 0.8 A to protect the element from excessive current, and the Mini-Universal MATE-N-LOK 2 connector provides a straightforward electrical connection at the resistor terminals.

Thermally, the resistor may remain energized for up to 0.72 s during each braking sequence and then requires a minimum cycle interval of 16.50 s so that the body can cool before the next event. Maintaining 150 mm of top clearance keeps airflow unobstructed and helps the housing maintain its IP54 protection against dust and water splashes. The aluminum enclosure weighs 0.52 kg, allowing panel mounting without heavy supports, and it accepts 16 AWG leads that match the required wire size for its terminals. Adequate spacing above the housing also reduces heat buildup around adjacent cabinet components.