RZW01.1-075-NNN
RZW Braking Resistors
RZW01.1-075-NNN, Bosch Rexroth Indramat, RZW Braking Resistors delivers a robust solution for dissipating regenerated energy in industrial drives. This braking resistor is rated to Power Class of 75 kW and supports DC bus Voltage Rating up to ~750 V for 400 V-class systems. Its metal enclosure with heat-dissipating fins, defined under Housing Material, offers a durable platform for demanding environments. Designed for Mounting Type on panels or walls, the unit carries an adjustable Protection Class of IP20 or IP23 depending on installation, ensuring safety against dust and splash exposure.
Engineered for precise thermal management, the RZW01.1-075-NNN features a Continuous Power Rating of approximately 5 kW (subject to ambient conditions) and a Max Energy Dissipation capacity of 100–200 kJ per braking cycle. A Thermal Time Constant of 100 s allows the resistor to cool gradually under natural convection, while optional fan-assisted Cooling Method adapts to higher duty requirements. The resistor’s Minimum Connectable Resistance of 3.75 Ω and inherent Resistance Value of ~1.1 Ω ensure optimal current limiting and compatibility with IndraDrive HCS units. Operational parameters include a precise Switch-on Duration set by 6% SD and a typical Switch Cycle Duration for frequent stop-start applications, preserving component longevity and consistent braking performance.
Integration into automation architectures is seamless thanks to full Compatibility with IndraDrive systems and compliance with CE marking and IEC/EN standards under the Compliance Standards umbrella. Passive convection cooling and the sturdy metal heat-sink design eliminate moving parts, reducing maintenance and enhancing reliability. The wall-mountable form factor and robust IP rating make the RZW01.1-075-NNN ideal for machine tool cells, conveyor lines, and other industrial automation setups where predictable braking and compact installation are critical.
Technical Specifications
Compatibility
IndraDrive systems (e.g. HCS drives)
Compliance Standards
CE marked; follows EN and IEC electrical safety standards
Continuous Power Rating
Approx. 5 kW (depends on cooling/ambient conditions)
Cooling Method
Natural convection (may support fan-assisted cooling)
Housing Material
Metal enclosure with heat-dissipating fins
Max Energy Dissipation
100-200 kJ per braking cycle
Minimum Connectable Resistance
3.75 ?
Mounting Type
Panel or wall-mounted
Power Class
75 kW
Protection Class
IP20 or IP23 (depends on mounting/enclosure)
Resistance Value
Approx. 1.1 Ohms
Switch Cycle Duration
For10 (Approximation)
Switch-on Duration
Parameter 6% SD
Thermal Time Constant
100 s
Voltage Rating
For DC bus voltages up to ~750V (400V-class systems)
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the RZW01.1-075-NNN. Exchange
Want to sell your RZW01.1-075-NNN?
