HLR01.2N-01K0-N68R0-E-007-NNNN
HLR Brake Resistors
The HLR01.2N-01K0-N68R0-E-007-NNNN brake resistor is produced by Bosch Rexroth Indramat as part of the HLR Brake Resistors series. It serves as a passive component placed across the drive’s DC link, where it converts excess regenerative energy into heat so that servo and spindle axes can decelerate quickly without triggering overvoltage trips.
The resistor presents a continuous dissipation capability of 1.00 kW, which defines the heat it can release indefinitely without exceeding its steady-state temperature limit. During abrupt stops it withstands a peak load of 8.96 kW, enabling the drive to absorb short energy surges safely. Its nominal resistance of 68.00 Ohm sets the braking current for a given DC bus voltage and therefore establishes the initial torque profile. Up to 10.00 kWs of regenerative energy can be accepted in a single event, while the permitted on-time of 1.11 s restricts how long that high load may be applied. Together these electrical ratings ensure thermal balance and prevent the wire-wound element from reaching critical temperature during repetitive duty. The area around the brake resister installation should be free of debris and loose material to ensure proper safety precautions during operation and installation. This is true during preventative maintenance inspections, as well.
Cooling is by ambient airflow, noted as Natural convection. At 3.96 kg, the housing is light enough for cabinet mounting yet has sufficient thermal mass to damp temperature rise between cycles. Wiring is completed with conductors sized 16 AWG, and the minimum cycle interval of 9.90 s guarantees adequate cool-down before the next braking pulse. Installation clearances of 200 mm at the top, bottom, and horizontal sides create the free air path required for rated performance and keep adjacent modules within their own temperature limits.
Technical Specifications
Bottom Clearance
200 mm
Continuous Braking Power
1.00 kW
Continuous Power
1 kW
Cooling Type
Natural Convection
Dc Bus Voltage
700 VDC
Horizontal Clearance
200 mm
Mass
3.96 kg
Max Absorbed Energy
10.00 kWs
Max On-time Duty
1.11 s
Max Regenerative Energy
10.00 kWs
Min Cycle Time
9.90 s
Minimum Cycle Time
9.90 s
Nominal Resistance
68.00 Ohm
Peak Braking Power
8.96 kW
Protection Class
IP54
Required Wire Size
16 AWG
Top Clearance
200 mm
Common Misspellings
Fax: 1-919-867-6204
Shipping & Payment Options
Warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the HLR01.2N-01K0-N68R0-E-007-NNNN. 
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