RZW02.1-200-015

The Bosch Rexroth Indramat RZW02.1-200-015 from the RZW Braking Resistors series represents a high-performance braking solution engineered to manage regenerative energy in demanding industrial automation applications. This compact module features a power class of 200 kW combined with a max switching power of 180 kW, ensuring robust handling of peak braking loads. With a precisely tuned resistance value of 1.8 Ω, the resistor effectively converts kinetic energy into heat, maintaining voltage stability on the DC bus during rapid deceleration events. Encased in a durable galvanized steel housing with IP20 protection level, the RZW02.1-200-015 is optimized for installation within standard control cabinets. The unit operates within an ambient temperature range of 0–40 °C and supports a relative humidity of <90% non-condensing, making it suitable for typical indoor industrial environments.

Performance is further enhanced by a dynamic braking factor adjustment that adapts per converter capacity to achieve precise energy dissipation under varying load profiles. A duty cycle (ED) of 15% allows short-duration, high-frequency braking pulses without thermal overload, supported by a thermal time constant of 100 s that governs heat dispersion. The resistor employs a parallel connection of two resistors through 2 × 70 mm² conductor cross-section leads, minimizing point-source heating and ensuring uniform temperature distribution. An integrated requirement for a 10 mm² (AWG 10) ground conductor provides low-impedance fault protection, safeguarding drive electronics and personnel. The design achieves a max air temperature rise of 35 °C above ambient, preserving material integrity during continuous operation at rated power.

Reliability is underpinned by the robust construction and a connection housing engineered for dust-free, gas-free environments. With a protection level of IP20, the resistor integrates seamlessly into distributed drive systems, hoist braking controllers, and high-inertia conveyor setups. The module’s operating environment specifications and compact product code RZW02.1 footprint facilitate straightforward retrofit or OEM integration. Maintenance requirements are minimal due to the corrosion-resistant steel enclosure and predictable thermal behavior. Applications span CNC machine deceleration, large-scale conveyor systems, and lift hoist braking, where rapid, repeatable energy absorption is critical to system stability and safety.