RZW02.1-200-006 Bosch Rexroth Indramat
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MPN: R911200900
The Bosch Rexroth Indramat RZW02.1-200-006 is part of the RZW Braking Resistors series and offers a power rating of 200 kW with a resistance of 1.8 Ohms. This resistor has an IP20 protection class and weighs 56 kg. Its dimensions are 710 mm in height, 595 mm in width, and 490 mm in depth.
Internal Product Review
The RZW02.1-200-006 is a Bosch Rexroth Indramat RZW braking resistor with 200 kW power data and 1.8 Ω resistance. IP20 protection and a 100 s thermal time constant support dependable braking energy dissipation in well-controlled industrial cabinets.
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Product Description:
The RZW02.1-200-006 braking resistor is manufactured by Bosch Rexroth Indramat for the RZW Braking Resistors series. It is installed on the DC link of drive systems to dissipate regenerative energy as heat and prevent overvoltage events during rapid motor deceleration. The unit has design code 1 and belongs to line 2 of the platform, a configuration intended for high-power axes that require short duty cycles without active cooling hardware.
This resistor can absorb up to 200 kW of instantaneous power, representing the peak thermal load it may convert during braking pulses. Its fixed resistance of 1.8 Ω establishes the current profile that the connected inverter will experience when the chopper switch closes. An enclosure rating of IP20 allows installation inside protected control cabinets where finger-safe guards are sufficient. The element may conduct continuously for a maximum of 7.2 s before reaching its permitted surface temperature. A recovery period of 112.8 s is then required. These on and off limits produce an operating factor of 6% SD, indicating the ratio of energized time to total cycle time that must not be exceeded.
A thermal time constant of 100 s indicates how quickly the internal temperature rises or falls when load conditions change, and it helps with the selection of external monitoring relays. The assembly weighs 56 kg, so panel supports must accommodate that static load and any dynamic vibration. The unit has a width of 595 mm, while its overall height and depth are 710 mm and 490 mm, respectively, allowing placement alongside large inverters without blocking airflow. At least 1.6 Ω of total braking resistance must remain on the DC bus, so parallel units can be wired only when the combined value remains above this limit. M10 studs provide the power terminations and allow rigid bolted connections to copper busbars.
