RZW02.1-007-040

The Bosch Rexroth Indramat RZW02.1-007-040 braking resistor is a robust component in the RZW Braking Resistors series, manufactured by Bosch Rexroth Indramat. This module features a 47 Ω resistance and a 1.6/5 kW power rating, providing efficient energy dissipation during deceleration. Housed in galvanized steel with external ventilation, it combines durability with effective thermal management. With a Thermal Time Constant of 150 seconds, the unit balances heat absorption and dissipation across repeated braking cycles. It delivers reliable performance at an ambient protection level of IP 23 protection class and weighs just 3 kg, making it a compact yet powerful solution.

Performance characteristics are optimized through precise electrical and mechanical design features. The resistor supports frequency converter ratings of 7.5 kW power data of frequency converter and handles a Peak Power of 3.5 kW for short-cycle energy loads. It accommodates a Switch-on Duration (SD) of 120 seconds basis and a Maximum Switch-on Time (40% SD) of 48 seconds, maintaining stable operation under repeated braking events. The Operating Factor of 25% SD ensures predictable thermal cycling, while the Minimum Shutdown Time of 72 seconds prevents overheating. A Min. Connectable Resistance Value of 30 Ω stabilizes energy control, and the Connection Terminal M5 with Cross-sectional Area 2.5 mm² guarantees secure electrical connectivity. Auxiliary control is provided via the Control Requirement Auxiliary function W1 connection for seamless integration with motion controllers.

Designed for industrial automation applications, the RZW02.1-007-040 combines rugged construction with straightforward installation. Its compact form factor facilitates integration into control cabinets, and the external ventilation design maximizes air flow without additional cooling hardware. The galvanized housing withstands mechanical stress and protects internal elements from particles and sprays, while the IP 23 rating offers dust and liquid ingress resistance. With a balanced thermal response and predictable switch-on behavior, this braking resistor is ideal for medium-duty energy control in servo systems, conveyor drives, and motor deceleration circuits. The combination of precision engineering and durable materials ensures long-term reliability in demanding industrial environments.