RZW02.1-004-040
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MPN: R911200541
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The RZW02.1-004-040 braking resistor features a galvanized steel plate housing, a continuous power rating of 3.5 kW, a resistance of 47Ω at 40% SD, and an external axial ventilator powered by 3 AC/400 V/50 Hz. Part of the RZW Braking Resistors from Bosch Rexroth Indramat, it has IP23 protection and a thermal time constant of 100 seconds.
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Product Description:
The RZW02.1-004-040 Braking Resistor by Bosch Rexroth Indramat exists specifically for protecting industrial automation system energy dissipation operations. The product holds type key code 004 and functions as a 4 kW power class device. A galvanized steel plate house containing the unit together with an extra steel screen creates the protective framework.
The RZW02.1-004-040 braking resistor works best in systems with brief operation periods of 40% and provides safe braking solutions during specified stop/start sequences. Recovery during brief operation runs smoothly due to a 100-second thermal time constant built into the resistor. A specific electrical resistance of 47 ohms emerges at 40% duty cycle operation point yet the lower limit of available resistance stands at 30 ohms. A cross-section of 2.5 mm² in the conductor performs well for electrical functions and temperature control needs of the device. The maximum capability to dissipate power from the RZW02.1-004-040 braking resistor reaches 3.5 kW thus providing efficient energy dissipation for applications ranging from small to medium scale. Protection class IP20 is assigned to the model which provides essential solid object resistance but does not secure against water penetration. Wind vane relay monitoring is present in this resistor to verify proper heat dissipation airflow inside the enclosure.
External ventilation of the RZW02.1-004-040 braking resistor functions with an axial ventilator that draws power from 3 AC operating at 400 V at 50 Hz. A ventilation system operates to promote airflow and regulate internal temperatures that develop inside the resistor during operational periods. The equipment enables 40% short duration relative switch operations but determines the total off-period by analyzing the system workload and operational duration. The resistor demonstrates functional storage through temperatures between –25 °C to +70 °C that support flexible product storage and distribution requirements.
Frequently Asked Questions about RZW02.1-004-040:
Q: How does wind vane relay help RZW02.1-004-040?
A: The RZW02.1-004-040 Braking Resistor uses wind vane relay to confirm airflow stability. This ensures proper heat dissipation during resistor operation.
Q: Why is external axial ventilation included RZW02.1-004-040?
A: The RZW02.1-004-040 Braking Resistor features axial ventilation to regulate internal heat. This supports continuous airflow and thermal balance during short-duty cycles.
Q: Why use 3 AC 400 V supply RZW02.1-004-040?
A: The RZW02.1-004-040 Braking Resistor uses 3 AC 400 V to power the axial ventilator. This provides stable input for consistent cooling performance.
Q: What does type key 004 indicate RZW02.1-004-040?
A: In the RZW02.1-004-040 Braking Resistor, type key 004 classifies the unit within a specific configuration group. This ensures proper system compatibility.
Q: How does steel screen enhance protection in RZW02.1-004-040?
A: The RZW02.1-004-040 Braking Resistor includes an extra steel screen to reinforce enclosure strength. This minimizes external impact and physical intrusion risks.
