RZW02.1-160-006 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RZW02.1-160-006 is a braking resistor from the RZW Braking Resistors series. It features a rated power of 160 kW, resistance of 2.6 ohms, and an operating factor of 6 percent. The resistor measures 995 mm in width, 490 mm in depth, 460 mm in height, and weighs 54 kilograms.
Internal Product Review
The RZW02.1-160-006 is a Bosch Rexroth Indramat RZW braking resistor engineered for dependable dynamic braking, with 160 kW power data and 2.6 Ω resistance. A 6% operating factor paired with a 120 s load cycle supports controlled energy dissipation in demanding drive applications. IP20 protection and a 2.2 Ω minimum connectable resistance make the unit a strong choice for well-managed industrial braking circuits.
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Product Description:
The RZW02.1-160-006 braking resistor is produced by Bosch Rexroth Indramat as part of the RZW Braking Resistors series. It is wired across the DC bus of compatible inverter drives to convert regenerated energy into heat during rapid deceleration, preventing overvoltage faults in industrial automation lines. The unit is intended for cabinet installation in systems that experience frequent dynamic braking cycles. During deceleration, it provides a controlled path for excess electrical energy that would otherwise raise the DC-bus voltage.
The resistor has a peak power rating of 160 kW and an internal resistance of 2.6 Ω. With a protection rating of IP20, the housing prevents accidental finger contact but requires installation in a dry, ventilated enclosure. The connection lugs accept copper conductors with a cross-sectional area of 50 mm². The drive controller may energize the resistor for a maximum of 7.2 seconds during each duty cycle. The unit measures 995 mm wide, 490 mm deep, and 460 mm high, so the cabinet must provide adequate installation space and airflow clearance. Design index 1 and line number 2 identify its design and wiring layout within the series. The lowest connectable resistance is 2.2 Ω when multiple modules are connected in parallel. A peak-to-continuous power ratio of 8 supports sharp braking ramps, while the complete load cycle lasts 120 seconds.
The permissible off-time is 112.8 seconds, resulting in an operating factor of 6% SD that limits average thermal stress. An internal thermal time constant of 100 seconds represents the resistor element’s temperature rise, while an assembly mass of 54 kg provides thermal inertia between braking pulses. Installation requires unobstructed airflow around the housing to remove accumulated heat during the off-time. Conductors must match the stated cross-sectional area to maintain secure electrical connections and appropriate current capacity. Adequate cabinet clearance also helps preserve dielectric separation from adjacent components and prevents nearby equipment from restricting natural airflow.
