RZW02.1-030-025
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MPN: R911200208
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The Bosch Rexroth Indramat RZW02.1-030-025 is part of the RZW Braking Resistors series and features a galvanized steel plate housing with a peak power of 27 kW. It operates at resistance values of 10 Ω and 11 Ω for 40% and 60% switch-on duty cycles. The resistor has a thermal time constant of 100 seconds.
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Product Description:
The model RZW02.1-030-025 is a fixed steel screen Braking Resistor designed for dynamic braking. The resistor is intended to manage regenerative energy during braking cycles. It functions effectively in environments where rapid and repetitive braking is essential.
The RZW02.1-030-025 braking resistor offers a resistance value of 10 ohms that ensures proper energy dissipation during dynamic braking operations. It is specifically compatible with frequency converters rated at 30 kW. It is suitable for medium duty applications such as crane drives and centrifuges. The unit is constructed with a fixed resistor type housed in a robust steel screen design. The resistor quickly handles transient energy surges without performance drops with a thermal time constant of 100 milliseconds. Its protection rating is IP20. The resistor requires a control cabinet with suitable protection (IP54) for enhanced performance. The total weight of the braking resistor is 22 kilograms which aids in stable mounting and heat absorption. The resistor must cool down for at least 90 seconds after each ON cycle to maintain performance and avoid overheating. This cool down period ensures the thermal stability of the component under continuous or repetitive use.
The Bosch Rexroth Indramat RZW02.1-030-025 braking resistor supports consistent performance during braking cycles by converting excess electrical energy into heat. The fixed design of the resistor simplifies installation and minimizes maintenance. The cross sectional area of the grounded conductor for the braking resistor must be ≥ 10 mm² (AWG 8). If the power supply conductors connected to the braking resistor have a cross sectional area greater than 10 mm², the grounded conductor must have a cross sectional area equal to or greater than the largest of the power conductors.
Frequently Asked Questions about RZW02.1-030-025:
Q: Can the Bosch Rexroth Indramat RZW02.1-030-025 handle frequent braking without thermal failure?
A: Yes, it can due to a 100 millisecond thermal time constant. It manages transient energy surges during rapid and repetitive braking without performance loss.
Q: Is the RZW02.1-030-025 braking resistor suitable for medium duty systems like cranes or centrifuges?
A: Yes, it is designed for medium duty applications requiring dynamic braking. It pairs with 30 kW frequency converters to ensure stable energy dissipation during cycles.
Q: Does the RZW02.1-030-025 resistor require specific grounding for safe operation?
A: Yes, the grounded conductor must be ≥ 10 mm² or equal to the largest power conductor. This ensures safe current flow and proper system grounding under load.
Q: Will the RZW02.1-030-025 model overheat if used continuously without breaks?
A: Yes, if not cooled for 90 seconds after each ON cycle it risks thermal overload. This cooldown maintains stability in continuous or repetitive duty environments.
Q: Can the Bosch Rexroth RZW02.1-030-025 be mounted securely in industrial panels?
A: Yes, the unit weighs 22 kilograms which helps in stable mounting. The steel screen enclosure improves heat absorption and mechanical durability in cabinet installations.
