RHB2-021DCB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RHB2-021DCB is a hybrid cable from the RHB2 Encoder Cables series and features an M23 hybrid connector with a 1.5 mm² cross section. It is designed for use in MS2(x) and ctrlX DRIVE connections, with a bending cycle rating of 5,000,000 and an operating temperature range from -40 to +80 °C.
Internal Product Review
The RHB2-021DCB is a Bosch Rexroth Indramat hybrid encoder cable featuring a robust M23 hybrid connector and S (M23, SPEEDCON) electrical connection for secure signal transmission. With support for 5,000,000 bending cycles and operation from -40°C to +80°C, this cable is well-suited for demanding motion applications. Overall, it stands out for its durability and compatibility with ctrlX DRIVE and MS2(x) series.
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Product Description:
The RHB2-021DCB is a Rexroth cable produced by Bosch Rexroth Indramat for the RHB2 Encoder Cables series. This hybrid lead combines motor phase conductors and encoder pairs inside one sheath, streamlining installation within automated cells. It serves as the dedicated link between MS2(x) synchronous motors and the control cabinet, transporting power, encoder signals, and shielding continuity so motion axes receive precise position feedback while keeping harness complexity low.
The cable is classified as a hybrid cable, meaning its power conductors and digital feedback pairs share one jacket. Its copper cores have a cross-sectional area of 1.5 mm², which supports the continuous currents typical of the MS2(x) motor frame while limiting voltage drop. Mechanical endurance reaches 5,000,000 flex cycles, allowing reliable service in drag chains and pick-and-place axes that require repeated movement. Connection is made through an S (M23, SPEEDCON) interface equipped with a SPEEDCON quick-lock mechanism for secure attachment. During operation, the cable can articulate to a dynamic bend radius of 7.5 × D without compromising its insulation or shield integrity, which facilitates routing through compact cable carrier curves.
For fixed routing, the permissible bend radius is 5 × D, enabling narrow loops inside machine frames while avoiding conductor fatigue. The assembly provides a direct connection between the motor and the ctrlX DRIVE inverter, eliminating intermediate terminal strips and reducing potential connection points. Reliable signaling is maintained at ambient temperatures from -40 °C to +80 °C, allowing the cable to operate in refrigerated warehouses and heated process areas. Its combined power and feedback layout also reduces the number of separately routed cables required between the motor and drive, leaving more usable space in crowded machine frames and cable carriers.
