RZW02.1-055-015

RZW02.1-055-015 from Bosch Rexroth Indramat is part of the RZW Braking Resistors series, delivering a robust Power Class: 55 kW in a compact footprint. This fixed-design module features a Design Type: Fixed resistor with steel screen design in galvanized steel housing, providing mechanical stability and corrosion resistance for industrial automation environments. The resistor’s low inductance construction ensures smooth braking performance, converting excess kinetic energy into heat without generating damaging voltage spikes. Encased in an IP20 enclosure, it safeguards internal components from solid ingress while fitting seamlessly into control panels and drive cabinets.

Built to operate under intermittent braking cycles, the RZW02.1-055-015 supports a versatile Switching Duration (sd): 6%, 15%, 25%, 40%, 60%, with the standard model rated for an Operating Factor: 15% SD. At this duty cycle it handles continuous full-load use for 15% of each period, effectively managing short, repeated deceleration phases. The resistor’s electrical characteristics include a Minimum Connectable Resistance: 5 Ω, a measured Resistance At Sd 6%: 6.1 Ω, Resistance Sd 40%: 6.7 Ω, and Resistance Sd 60%: 5.4 Ω, ensuring precise, predictable braking torque control. Thermal behavior is defined by a Thermal Time Constant: 100 s, while the conductive paths accommodate a Cross-section Sd 40%: 35 mm² and Cross-section Sd 60%: 50 mm². A peak dissipation capability of Peak Power Sd 60%: 50 kW prevents overshoot during heavy braking events.

Engineers benefit from the resistor’s modular form factor and proven reliability in high-power drive systems, enabling straightforward integration with Bosch Rexroth Indramat servo and frequency converters. The fixed resistor design eliminates variable components, reducing maintenance intervals and ensuring long-term stability in harsh industrial settings. With protection up to IP20 and galvanically treated steel housing, the RZW02.1-055-015 offers dependable service life and consistent braking performance across diverse automation applications.