Product Description:

The HLB01.1D-02K0-N03R4-A-007-NNNS is a resistor brake module manufactured by Bosch Rexroth Indramat within the HLB Resistor Brake Units series. In multi-axis drive systems this hardware dissipates excess kinetic energy from motors by converting regenerated DC-bus voltage into thermal load on an internal resistor network. By absorbing over-voltage events it protects connected converters and maintains stable bus voltage, allowing precise deceleration cycles and preventing component stress. This makes the HLB01.1D-02K0-N03R4-A-007-NNNS a straightforward safety and energy-management element for industrial automation lines.

Its continuous thermal rating supports a steady dissipation of 2 kW, while brief peaks up to 180 kW are permitted when the commanded stop demands rapid energy removal from the DC link. The permitted overload window is limited to a maximum on-time of 2.7 s so the resistor bank can cool between braking cycles. Electrical loading is defined by a cold resistance of 3.4 Ω, a value that sets the current drawn from the link during each pulse. The copper conductor for the bus interface has a cross-section of 72 mm², providing the low impedance path required for high peak currents without excessive heating or voltage drop.

During an emergency stop the unit can absorb up to 500 kWs of energy before thermal limits are reached, and its steel housing keeps overall mass to 12.2 kg for manageable panel installation. Mechanical dimensions consist of a 100 mm width, a 309 mm depth, and a 440 mm height; the first of these figures, a compact 100 mm, simplifies side-by-side mounting with drives. The logic terminals monitor release signals: the high-level threshold is 19.2 V, low level must stay below 5 V, and the internal input impedance is 2 kΩ, enabling direct connection to standard 24 V control outputs without extra buffering.