RZW03.1-075-040
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MPN: R911201124
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The Bosch Rexroth Indramat RZW03.1-075-040 is part of the RZW Braking Resistors series and features a power class of 75 kW. It has a thermal time constant of 100 seconds and a resistance of 5 Ω at a 40% SD operating factor. The resistor is housed in galvanized steel and offers IP23 protection.
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Product Description:
The RZW03.1-075-040 Braking Resistor exists as a product of Bosch Rexroth Indramat. The resistor bears a type key line value marked 03 which appears on its classification. Product consistency follows design code 1. This device serves as a braking resistor in industrial automation that operates under a 40% short-duty cycle. The power rating of this resistor stands at 75 kW.
The total period of thermal behavior of RZW03.1-075-040 braking resistor reaches 100 seconds. The thermal load capacity of the resistor depends on this value. The designated 40% resistance rating amounts to 5 ohms. The resistance value reaches 5.3 ohms during operation at 60% duty. The resistor power capacity depends on the operational load conditions. For short-duty operations of 40%, the conductor measures 50 mm². The conductor needs to be increased to 70 mm² when running at 60% duty. The designed dimensions maintain electric properties that match specified thermal value capabilities. The steel housing uses galvanization as a construction material. The housing shields the unit from harmful mechanical contact from outside sources. The RZW03.1-075-040 braking resistor receives an IP 23 protection rating. The product rating IP 23 protects against dust intrusion and allows resistance to vertical water splashes. Users can install this equipment in areas that have closed or partially sheltered operating spaces.
The RZW03.1-075-040 braking resistor operates successfully within a humidity environment of 90% maximum. Use of the equipment requires non-condensing humidity levels. Routine environmental factors will not degrade insulation properties when this protection is employed. The operating temperature requirements exist between 0°C and 40°C. Standard industrial installations can be executed using this temperature range. Weight fluctuations of the resistor depend on your selection of configuration type. The motor braking system incorporates this Braking Resistor as its primary component.
Frequently Asked Questions about RZW03.1-075-040:
Q: Why does RZW03.1-075-040 use galvanized steel?
A: The RZW03.1-075-040 Braking Resistor uses galvanized steel to ensure corrosion resistance and extended outdoor durability. This maintains structural integrity under industrial conditions.
Q: Why does RZW03.1-075-040 have short duty cycle?
A: The 40% short-duty cycle in RZW03.1-075-040 Braking Resistor prevents overheating during intermittent load. This supports stable performance during brief high-energy demands.
Q: What is the benefit of IP 23 rating in RZW03.1-075-040?
A: The RZW03.1-075-040 Braking Resistor’s IP 23 rating offers moderate protection against dust and water. This enhances safety in semi-sheltered environments.
Q: How does thermal behavior time affect RZW03.1-075-040 usage?
A: The RZW03.1-075-040 Braking Resistor’s 100-second thermal period ensures reliable energy dissipation. It minimizes heat stress during intense brake cycles.
Q: Why RZW03.1-075-040 use 70 mm² conductor for 60% duty?
A: In the RZW03.1-075-040 Braking Resistor, 70 mm² conductor reduces electrical resistance and overheating. It accommodates higher current loads safely.
