RZW02.1-075-006
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MPN: R911200564
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The Bosch Rexroth Indramat RZW02.1-075-006 is part of the RZW Braking Resistors series and comes in a galvanized steel housing. It operates with a resistance of 4.9 Ohms, a power class of 75 kW, and a thermal time constant of 100 seconds. The unit features IP20 protection, M10 terminals, and weighs 26 kilograms.
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Product Description:
The RZW02.1-075-006 RZW Braking Resistor is designed to provide effective, safe, and reliable braking performance in dynamic industrial applications where energy dissipation and voltage control are critical. This braking resistor is manufactured by Bosch Rexroth Indramat to be used in various drive systems. This resistor operates with frequency converters rated at 75 kW and provides stable braking operations in industrial systems with high power.
This braking resistor can sustain a peak power of 67 kW to support efficient energy management during fast deceleration cycles. This braking resistor also comes with a 4.9 Ω value of resistance and provides accurate braking current control within specified limits. The minimum compatible resistance for this braking resistor is 3.75 Ω to provide compatibility across various braking systems by ensuring operational safety. The enclosure is rated IP 20 to protect solid bodies having a size more than 12 mm, thus making this braking resistor suitable for mounting in electrical cabinets or in covered conditions. With a weight of 22 kg, the dimensions of the RZW02.1-075-006 are 490 mm (height) x 600 mm (width) x 270 mm (depth). These physical attributes reflect the solid mechanical construction of this resistor and the ability to support both horizontal and vertical mounting orientations.
The operating ambient temperature range for this braking resistor is 0 °C to 40 °C, which is ideal for general industrial conditions. For storage purposes, this resistor can withstand temperatures ranging from –25 °C to +70 °C to allow secure long-term storage. The RZW02.1-075-006 resistor accommodates a relative humidity of up to 90% (non-condensing) for reliable performance even in high-humidity conditions. For power connection, this braking resistor features 2 screw terminals that accept wires with a cross-section of 25 mm².
Frequently Asked Questions about RZW02.1-075-006:
Q: Why does the RZW02.1-075-006 use a 25 mm² terminal cross-section?
A: This allows for efficient current transfer and reduces thermal buildup during peak power operation.
Q: Is the RZW02.1-075-006 suitable for regenerative braking setups?
A: Yes, it’s designed to handle energy peaks from regeneration phases, protecting downstream components from voltage surges.
Q: What is the advantage of a 4.9 Ω resistance in the RZW02.1-075-006?
A: It balances energy dissipation and braking efficiency, avoiding voltage spikes during deceleration.
Q: Why is an IP 20 rating sufficient for this product?
A: It’s intended for cabinet-mounted or enclosed installations, where exposure to liquids or fine dust is not expected.
Q: What does the screw terminal design in RZW02.1-075-006 offer over spring terminals?
A: Screw terminals provide a secure mechanical connection, minimizing vibration-related disconnections.
