RZW02.1-075-025
RZW Braking Resistors
The Bosch Rexroth Indramat RZW02.1-075-025 from the RZW Braking Resistors Series is a fixed-design braking resistor engineered for high-performance industrial automation applications. It features a Design Type 1 (fixed design) and delivers a Power Rating of 75 kW with a Peak Power of 67 kW, ensuring reliable absorption of regenerative energy. Certified to Protection Class IP20, the unit protects sensitive electronics against solid object ingress in demanding environments. This resistor integrates seamlessly into drive systems to prevent voltage surges and maintain operational stability.
Featuring a Thermal Time Constant (tbw) of 100 s, the RZW02.1-075-025 exhibits controlled heat-up behavior and stable thermal performance. It operates reliably within an Ambient Operating Temperature range of 0 to 40 °C and supports an Operating Factor (Sd) of 25%, making it ideal for intermittent-duty cycles. A practical Calculation Example (switch-on Time) shows that at 40% load, the maximum allowable switch-on time is 48 seconds, safeguarding against thermal overload. Installation safety is enhanced by a minimum Cross Section Of Grounded Conductor of 10 mm² and a Minimum Connectable Resistance of 3.75 Ω, ensuring proper earthing and circuit protection.
Built from durable Galvanized Steel, the housing provides robust mechanical strength and corrosion resistance in industrial settings. The resistor is designed for Admissible Assembly: horizontal with terminals below, which optimizes airflow and heat dissipation during operation. Compact yet rugged, the RZW02.1-075-025 is the ideal choice for energy-efficient braking in heavy machinery and factory automation systems.
Technical Specifications
Admissible Assembly
Horizontal with terminals below
Ambient Operating Temperature
0 to 40°C
Calculation Example (switch-on Time)
At 40%, maximum switch-on time is 48 seconds
Cross Section Of Grounded Conductor
Minimum size of 10 mm²
Design Type
1 (fixed design)
Housing Material
Galvanized Steel
Minimum Connectable Resistance
3.75 Ω
Operating Factor (switch-on Duration, Sd)
25%
Peak Power
67 kW
Power Rating
75 kW
Product Series
RZW (Braking Resistors)
Protection Class
IP20
Thermal Time Constant (tbw)
100 s
Shipping & Payment Options
Warranty
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