RZW02.1-022-006 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RZW02.1-022-006 is a braking resistor from the RZW Braking Resistors series. It has a resistance of 15 ohms, a power rating of 22 kW, and features IP20 protection class. The resistor measures 686 mm in width, 120 mm in height, and has a load cycle time of 120 seconds.
Internal Product Review
The RZW02.1-022-006 is a Bosch Rexroth Indramat RZW braking resistor engineered for dependable dynamic braking, with 22 kW power data and 15 Ω resistance. IP20 protection and a 6% operating factor support stable panel integration and repeatable energy dissipation during deceleration cycles. The 300 s thermal time constant reinforces consistent thermal behavior, a strong advantage for braking resistor applications.
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Product Description:
The RZW02.1-022-006 braking resistor is produced by Bosch Rexroth Indramat for the RZW Braking Resistors series. When wired to a compatible drive, it converts surplus electrical energy generated during motor overspeed or rapid stops into heat, thereby protecting the DC link and power semiconductors from overvoltage. This unit is Design 1, belongs to Line 2 of the product group, and is built inside a compact housing that measures 185 mm in depth and 120 mm in height, enabling straightforward placement in control cabinets or on machine frames.
The resistor can dissipate up to 22 kW of thermal power under permissible duty conditions. Its resistance is 15 Ω, so current is limited to a predictable level when the drive diverts braking energy. Bosch Rexroth assigns an operating factor of 6% SD, which restricts average energization to six percent of each operating window to prevent overheating. Individual braking intervals may extend to 120 s before a mandatory cooldown period. Touch protection is provided by an enclosure rated at IP20, allowing convection while preventing accidental finger contact with internal components. The minimum connectable resistance is 11.6 Ω, ensuring that parallel resistor combinations do not overload the power circuit. The mounting footprint spans 626 mm in width and 150 mm in depth, providing the required dimensions for panel layout and secure installation.
Thermal behavior is characterized by a time constant of 300 s, indicating how long the element takes to reach 63% of its final temperature after a step load. The assembly weighs 6.2 kg, allowing manageable handling while providing thermal mass between braking cycles. Its overall width is 686 mm, leaving clearance for airflow around the cooling fins, while the threaded mounting points use the standard M6 size to accommodate common cage nuts and channel hardware.
