RZW03.1-200-006 Bosch Rexroth Indramat
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MPN: R911200873
The Bosch Rexroth Indramat RZW03.1-200-006 is a braking resistor from the RZW Braking Resistors series with a power rating of 200 kW and a resistance of 1.8 ohms. This model features IP23 protection, a thermal time constant of 100 seconds, and measures 770 mm in height, 595 mm in width, and 490 mm in depth. The resistor weighs 61 kg and supports a line cross-section of 70 mm².
Internal Product Review
The RZW03.1-200-006 is a Bosch Rexroth Indramat RZW braking resistor rated for 200 kW with a resistance of 1.8 Ω. IP23 protection and a 100 s thermal time constant support dependable braking performance in demanding drive systems. A 6% operating factor and 1.6 Ω minimum connectable resistance make the unit a strong choice for controlled energy dissipation.
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Product Description:
The RZW03.1-200-006 braking resistor is built by Bosch Rexroth Indramat for the RZW Braking Resistors series. Used alongside regenerative drives, the unit converts surplus kinetic energy into heat during rapid deceleration, keeping the DC-link voltage within safe limits in industrial automation systems. It is suitable for high-inertia axes and multi-axis assemblies that require frequent stopping cycles.
The resistor is rated for a peak dissipation of 200 kW, which is the maximum electrical power it can absorb during braking pulses. Its nominal resistance of 1.8 Ω controls the current that flows when the device is connected to a 600 V DC bus, while a minimum connected resistance of 1.6 Ω prevents excessive current if several modules are wired in parallel. The housing has an IP23 protection rating, which guards against finger contact and sprayed water while retaining large openings for convection. Drive cables attach to copper bars sized for 70 mm² conductors, limiting temperature rise at high pulse currents. With a permitted on-time of 7.2 s per duty cycle, the component is intended for short, intense braking periods rather than continuous dissipation. Design 1 indicates mounting geometry that aligns with standard RZW cabinet brackets.
After each active interval, the unit must remain idle for 112.8 s to maintain the 6 percent duty cycle established for the series. The steel heat sink and ceramic elements provide a thermal time constant of 100 s, so the temperature continues to rise briefly after power is removed and must be considered when planning cabinet ventilation. The assembly weighs 61 kg and measures 770 mm in height, 595 mm in width, and 490 mm in depth, requiring rigid support rails and suitable lifting equipment during installation. Electrical connections are secured by studs with a thread size of M10, allowing attachment to busbars without special adapters.
