RZW02.1-015-006 Bosch Rexroth Indramat
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MPN: R911200807
The Bosch Rexroth Indramat RZW02.1-015-006 is a braking resistor from the RZW Braking Resistors series with a power rating of 15 kW and IP20 protection. It features an 18 Ohm resistance, supports a maximum surface temperature of 80 degrees Celsius, and weighs 5.2 kilograms. The unit measures 586 mm in width, 185 mm in depth, and 120 mm in height.
Internal Product Review
The RZW02.1-015-006 is a Bosch Rexroth Indramat RZW braking resistor rated at 15 kW with 18 Ω resistance. An IP20 protection class and 80 °C maximum surface temperature support predictable installation in controlled industrial cabinets. The 6% operating factor makes this unit a strong choice for dependable dynamic braking duty.
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Product Description:
The RZW02.1-015-006 braking resistor is manufactured by Bosch Rexroth Indramat for the RZW Braking Resistors series. Installed on the DC link of servo and inverter systems, it dissipates regenerative energy as heat to keep the bus voltage within safe limits during rapid machine deceleration. The aluminum enclosure measures 586 mm in width, 120 mm in height, and 185 mm in depth, allowing straightforward mounting in a control cabinet bay. Its passive design supports repetitive industrial braking cycles without adding moving parts to the drive train.
The resistor network uses design number 1 and internal line code 2. A nominal resistance of 18 Ω supports standard drive matching, while the minimum permissible resistance is 17.5 Ω. The unit can absorb up to 15 kW of braking power, but its operating factor must remain within 6% SD, meaning that power may be applied for only that portion of each duty period. Surface temperature is limited to 80 °C, and the enclosure has an IP20 protection rating, so it must be installed in a dry control panel. The line terminals accept 2.5 mm² conductors, while an M6 mounting thread secures the body to a conductive backplate that provides the required protective earth path.
The resistor may conduct for a maximum of 7.2 s during each run. This energized interval must be followed by an idle period of 112.8 s, and the complete load cycle lasts 120 s. A thermal time constant of 300 s indicates how quickly stored heat decays after braking power is removed. The protective ground connection requires a conductor with a cross-sectional area of at least 10 mm². The assembly has a mass of 5.2 kg, which provides thermal inertia that helps moderate temperature changes during intermittent operation.
