RZW02.1-004-040
RZW Braking Resistors
The Bosch Rexroth Indramat RZW02.1-004-040 braking resistor from the RZW Braking Resistors series features a galvanized steel plate housing with steel screen reinforcement and delivers a continuous power rating of 3.5 kW. It provides a resistance of 47 Ω at a 40% duty cycle with a power ratio of Ppeak:Pcontinuous = 2.2, protected to IP23. Thermal management is ensured by a 100 s thermal time constant and an external axial ventilator driven by 3 AC/400 V/50 Hz. Wind vane relay monitoring verifies proper airflow, while switch-on durations of 40% relative SD and switch-off times calculated based on load cycle and activation periods ensure precise, reliable braking performance.
Technical Specifications
Applicable Air Current Monitoring
Wind vane relay
Continuous Power
3.5 kW
Cross-section At Sd 40%
2.5 mm²
Housing
Galvanized steel plate housing
Material
Steel screen for additional robustness
Minimum Connectable Resistance
47Ω
Operating Factor (sd)
0.4
Power Ratio
Ppeak : Pcontinuous = 2.2 at 40% SD
Protection Class
IP23
Resistance For Sd 40%
47Ω
Switch-off Duration Calculation
Calculated based on load cycle and switch-on time
Switch-on Duration
40% Relative SD
Thermal Time Constant
100 s
Type Key Code
004 (corresponds to 4 kW power class)
Ventilation Type
External using 3 AC/400 V/50 Hz, axial ventilator
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Warranty
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