RZK01.1-160-BW

The Bosch Rexroth Indramat RZK01.1-160-BW unit from the RZK Heat Exchangers series features a Built-In brake resistor and a 160 kW power rating for frequency inverters mounted on a Wall Mounting line. As an internal heat exchanger designed for outside cabinet mounting, it serves the primary function of transferring heat away from RD 500 drives and converters. The RZK01.1-160-BW provides efficient cooling to maintain optimal operating temperatures and prevent thermal overload, ensuring reliable operation of high-power drive systems.

The RZK01.1-160-BW delivers a cooling capacity of 4 kilowatts and accommodates multiple converters provided their total losses do not exceed this cooling power. Its integrated brake resistor has a resistance of 2.2 Ohms, a nominal power rating of 2 kilowatts, and a peak power rating of 270 kilowatts available for 0.1 seconds with a thermal time constant of 13.6 seconds. Designed specifically for converters rated at 160 kW, this heat exchanger ensures efficient heat transfer under continuous and intermittent loads. The outside-cabinet mounting configuration simplifies installation while providing direct airflow for effective thermal management.

Additional features include an IP20 environmental protection class, offering solid-object ingress protection down to 12 mm but requiring indoor use to avoid liquid exposure. The exposed brake resistor surface demands caution: Bosch Rexroth Indramat recommends waiting at least 10 minutes after shutdown before performing maintenance. For optimal compatibility, connected converters should maintain factory default P0036 parameter setting ("Standard"). By integrating precise thermal control, robust construction, and safety considerations, the RZK01.1-160-BW enhances efficiency and reliability in industrial drive applications, reducing downtime and extending equipment life.