RZW02.1-003-006

The RZW02.1-003-006 from Bosch Rexroth Indramat is a robust member of the RZW Braking Resistors series, engineered for precise energy dissipation in industrial automation applications. This model features a galvanized steel plate housing and offers a Peak Power rating of 3 kW with a 6% switching duty at a 120-second cycle. With a Minimum Connectable Resistance of 30 ohms and a thermal time constant of 100 seconds, it delivers reliable braking performance under rigorous conditions. The unit weighs just 1.8 kg and maintains an operational temperature range between 0 to 40°C, ensuring compatibility with a wide range of drive systems. Designed for horizontal mounting with terminals below the resistor, it complies with IP20 protection class standards.

Technical capabilities of the RZW02.1-003-006 include a Maximum Operating Factor of 6% SD for continuous operation and support for multiple Switch On Cycle (sd) options—6%, 15%, 25%, 40%, and 60%—to precisely match load profiles. The internal resistor is a Type E11 for 6% SD, offering 2.5 ohms of specialized resistance, while the standardized Type A cemented wire-wound conduit variant provides 68 ohms at 6% duty. Installation requires a Cross Section Of Grounded Conductor of ≥ 10 mm² (AWG 10) and a cable cross-section rating of 2.5 mm², ensuring secure grounding and power connections. Application notes recommend that resistors may be switched in parallel for configurations above power code 200, enabling scalable braking solutions. The integrated porcelain PG screw terminals within the termination box simplify wiring and minimize connection failures.

Operational features emphasize durability and ease of maintenance. The galvanized steel housing with a perforated cover provides robust mechanical protection and efficient heat dissipation, allowing surface temperatures up to 80°C during active braking. With an Operating Temperature Range of 0 to 40°C and storage tolerances from –25°C to +70°C, this resistor endures diverse environmental conditions without performance degradation. The defined on-duration of 7.2 seconds followed by an off-time of 112.8 seconds supports controlled load cycles and prevents thermal overload. A compact Overall Weight of 1.8 kg makes installation straightforward, and the horizontal mounting design facilitates rapid integration into control panels and drive cabinets.

Integration into existing systems is streamlined by the resistor’s standardized form factor and clear Admissible Assembly guidelines—terminals below in a horizontal orientation—ensuring compatibility with typical drive architectures. The IP20 Protection Class protects against solid objects and light contact, making it ideal for clean industrial environments. Its inclusion in modular braking circuits enhances energy recovery and thermal management in conveyor systems, robotics, and packaging machinery. With precise braking power ratios and scalable switching duty options, the RZW02.1-003-006 is perfectly suited for applications demanding repeatable, high-frequency deceleration cycles in industrial automation.