RZW03.1-075-015
RZW Braking Resistors
The Bosch Rexroth Indramat RZW03.1-075-015 from the RZW Braking Resistors series delivers a robust 75 kW power class with a precise 47 Ω resistance value in a durable galvanized steel casing. This braking resistor is certified to IP23 protection, ensuring reliable operation in controlled industrial environments. It supports a 1.6 kW continuous power rating and features an inherent operating factor of 15% SD based on a standard 120-second load cycle. Designed for seamless integration, the unit exposes a 5.1 Ω minimum connectable resistance to match a variety of motor drive systems.
The RZW03.1-075-015 incorporates a 150 seconds thermal time constant to manage heat dissipation effectively under cyclic loading. Its 48 seconds maximum on-time (40% SD) at elevated braking demands highlights the balance between performance and safety. A generous 50 mm² cross-sectional area combined with a 520 mm height form factor facilitates straightforward electrical connections and compact panel layouts. Built-in switching time guidelines based on a 120s load cycle help engineers optimize duty profiles without exceeding thermal limits.
Weighing in at 26 kg, this braking resistor offers both substantial mass for thermal inertia and manageable handling during installation. The integrated thermal overload protection guarantees automatic shutdown before hazardous temperatures are reached, safeguarding connected drives and downstream equipment. Overall, the RZW03.1-075-015 excels in industrial automation applications that demand high-power braking performance with enduring reliability.
Technical Specifications
Casing Material
Galvanized steel
Continuous Power
1.6 kW
Cross-sectional Area
50 mm²
Dimension Height
520 mm
Maximum On-time (40% Sd)
48 seconds
Minimum Connectable Resistance Value
5.1 Ω
Operating Factor
15% SD
Power Class
75 kW
Protection Class
IP 23
Resistance Value
47 Ω
Switching Time Guidelines
Based on 120s load cycle
Thermal Overload Protection
Yes
Thermal Time Constant
150 seconds
Type
RZW03.1
Weight
26 kg
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Warranty
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