RZW02.1-005-040
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MPN: R911200247
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The RZW02.1-005-040 is a braking resistor featuring 47 Ohms resistance at 40% operating factor and IP20 protection. Manufactured by Bosch Rexroth Indramat as part of the RZW Braking Resistors Series, it delivers a peak power of 5 kW. The resistor includes a built-in 3.5 kVA axial ventilator for external ventilation.
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Product Description:
The RZW02.1-005-040 Braking Resistor from Rexroth Indramat is designed for effective energy dissipation in drive systems. It offers high peak power handling, durable construction and reliable thermal performance. Its IP20 protection rating ensures safe indoor operation under standard industrial environments.
The RZW02.1-005-040 braking resistor offers a peak power rating of 5 kW that is suitable for high load braking cycles. It has a resistance of 47 ohms and a thermal time constant of 300 minutes that ensures consistent heat dissipation over extended operations. The maximum on time per duty cycle at peak load is 48 seconds. This enables controlled and repeatable energy discharge without overheating. With a protection rating of IP20, the resistor is safeguarded against solid objects over 12 mm. The unit has a weight of 7.5 kg and its dimensions measure 586 mm in width, 275 mm in depth and 120 mm in height. These compact dimensions allow for easy integration into control cabinets or dedicated enclosures. The enclosure design of the model supports sufficient airflow and thermal management. The RZW series braking resistor is engineered to withstand frequent on off cycles without degradation of resistance or power dissipation capacity.
The RZW02.1-005-040 braking resistor is a cement coated wire wound fixed resistor in a cylindrical pipe configuration. It is mechanically secured via bolted lateral mounting brackets and enclosed with a perforated metal cover to allow heat dissipation. The unit is mounted parallel to the main assembly surface. Electrical connections are made through two wire leads terminated at high temperature rated porcelain terminal blocks housed in an external terminal box. The terminal box includes PG cable glands for secure cable entry and strain relief.
Frequently Asked Questions about RZW02.1-005-040:
Q: Can the RZW02.1-005-040 maintain thermal stability during long operational periods?
A: Yes, the RZW02.1-005-040 has a thermal time constant of 300 minutes. It manages heat consistently under extended load without degrading performance.
Q: Will the RZW02.1-005-040 resistor overheat during peak cycles?
A: No, the RZW02.1-005-040 allows a maximum on time of 48 seconds at peak 5 kW load. It supports controlled discharges and avoids overheating in high load braking.
Q: Is the RZW02.1-005-040 designed for harsh mounting environments?
A: Yes, the RZW02.1-005-040 includes bolted lateral mounting brackets for stable mechanical fixing. Its perforated metal cover ensures airflow and thermal dissipation during operation.
Q: Does the RZW02.1-005-040 resistor provide secure cable termination?
A: Yes, the RZW02.1-005-040 uses porcelain terminal blocks with PG cable glands. It ensures high temperature resistance and reliable cable strain relief.
Q: Can the RZW02.1-005-040 be installed in limited control cabinet space?
A: Yes, the RZW02.1-005-040 has compact dimensions of 586 by 275 by 120 mm. It integrates easily into enclosures without airflow or thermal interference.
