RZW03.1-007-025
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MPN: R911201139
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The Bosch Rexroth Indramat RZW03.1-007-025 is part of the RZW Braking Resistors series and features a fixed resistor in a galvanized steel housing with an IP23 enclosure protection rating. It provides a power class of 7.5 kW with a minimum resistance value of 30 Ω. The resistor operates within 0 to 40°C.
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Product Description:
Bosch Rexroth manufactured the RZW03.1-007-025 which is a part of the RZW Braking Resistors series. The RZW03.1-007-025 brake resistor is designed for strong performance especially during dynamic braking when a significant amount of energy needs to be released. The resistor supports thermal stability with a 100 second time constant for optimized braking performance.
The RZW03.1-007-025 braking resistor uses a 3.1 design which includes a fixed resistor in a galvanized steel housing. Its construction ensures mechanical strength and corrosion resistance for demanding applications. The resistor operates with a 7.5 kW power class and has an operating factor of 25 percent. It offers a resistance value of 33 ohms which enables precise energy absorption during braking. The resistor maximum switch on time is 30 seconds which helps protect the system from thermal overload. Its electrical connection uses a 2.5 mm² cross sectional cable interface for current flow. The resistor has a weight of 26 kg which allows stable and secure mounting without any shifting. The RZW03.1-007-025 braking resistor is rated with an IP23 enclosure providing protection from solid particles over 12.5 mm and angled water spray. It is suitable for applications with intermittent energy discharge in servo drive systems. The resistor maintains effective performance at ambient temperatures from 0°C to 40°C. It should be mounted with sufficient ventilation to avoid excessive heat buildup during high cycle use.
The RZW03.1-007-025 braking resistor supports storage temperatures that range from -25°C to +70°C. It can withstand up to 90% relative humidity in non condensing industrial environments. The resistor ensures stable braking performance throughout its lifespan due to strong construction and thermal protection. It is a fixed resistor type F used to ensure consistent electrical characteristics throughout the operation.
Frequently Asked Questions about RZW03.1-007-025:
Q: How does the 25% operating factor benefit the resistor?
A: It ensures the resistor can handle short bursts of high energy without thermal failure or overload risks.
Q: Why is the galvanized steel housing used in RZW03.1-007-025?
A: It improves corrosion resistance and ensures mechanical durability in harsh or dusty industrial environments.
Q: Why is IP23 protection significant in RZW03.1-007-025?
A: It protects against solid objects over 12.5 mm and angled water spray, making it suitable for semi-protected installations.
Q: What advantage does the 26 kg weight offer in RZW03.1-007-025?
A: The added weight enhances stability during floor or panel mounting and reduces vibration-induced displacement.
Q: Can the RZW03.1-007-025 operate in vibration-sensitive systems?
A: Yes, its rigid mechanical housing and 26 kg build allow secure mounting even in dynamic applications.
