RZW02.1-011-060 Bosch Rexroth Indramat
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MPN: R911200985
The Bosch Rexroth Indramat RZW02.1-011-060 is part of the RZW Braking Resistors series and has a peak power rating of 10 kW with a duty factor of 60% ED. This resistor features IP20 protection, measures 600 mm in depth by 490 mm in width by 270 mm in height, and weighs 22 kg. It allows for an operating ambient temperature range of 0 to 40 °C and a maximum housing surface temperature of 80 °C.
Internal Product Review
The RZW02.1-011-060 is a Bosch Rexroth Indramat braking resistor that delivers strong dissipation performance with 10 kW peak power and 22 Ω resistance. A 60% duty factor and 120 s cycle time base support consistent operation during repeated braking events. An excellent fit for drive systems requiring dependable thermal management and stable braking performance.
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Product Description:
The RZW02.1-011-060 braking resistor is produced by Bosch Rexroth Indramat for the RZW Braking Resistors series. Classified as type B3, it is wired across the DC link of a drive controller and absorbs regenerative energy that appears when a motor decelerates or an axis reverses. Converting that energy into heat prevents overvoltage trips and allows controlled braking cycles in conveyors, pick-and-place arms, and packaging lines used throughout industrial automation.
The resistor supports a 60% duty cycle (ED), meaning it may conduct for more than half of each thermal cycle. A base cycle time of 120 s is used to calculate the permissible operating and cooling intervals. When operated within this intermittent profile, the element has a resistance of 22 Ω, which is above the drive chopper’s minimum connectable resistance of 20 Ω. Peak braking power can reach 10 kW, allowing the system to dissipate substantial regenerative energy during brief braking events. The resistor has a thermal time constant of 100 s, indicating how quickly its internal temperature responds to changes in power dissipation. This thermal response can be used to evaluate sequential stops and prevent excessive heat accumulation during repeated motion cycles.
The steel enclosure has an ingress protection rating of IP20, so it must be mounted inside a cabinet that provides suitable protection against dust and moisture. Continuous operation is permitted within an ambient temperature range of 0 to 40 °C, while storage is allowed at temperatures as low as -25 °C. Under rated load, the housing surface temperature will not exceed 80 °C, permitting the use of nearby wiring with standard 105 °C insulation. The resistor has an M10 mounting thread and measures 270 mm × 490 mm × 600 mm, so the installation area must provide adequate clearance for the enclosure. Power wiring uses 6 mm² conductors, while the protective earth conductor must have a cross-sectional area of at least 10 mm². With a mass of 22 kg, the unit requires firm panel support during installation and operation. It can operate at up to 90% relative humidity when condensation is prevented inside the cabinet.
