RH2-023DBB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RH2-023DBB is part of the RH2 Encoder Cables series and features a 2nd generation design with a direct connection and single-cable configuration. This hybrid cable includes four power cores, two auxiliary cores of 0.5 mm², and four AWG24 signal cores. It offers dynamic bending radius of 7.5 times the diameter and supports bending cycles up to 5,000,000.
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Product Description:
The RH2-023DBB cable is manufactured by Bosch Rexroth Indramat and belongs to the RH2 Encoder Cables series. As a hybrid lead, it carries motor power and encoder signals between a drive and its synchronous servomotor, allowing motion axes in industrial automation cells to use one cable run instead of separate power and feedback cables. This arrangement simplifies routing through drag chains, reduces total harness weight, and maintains the signal integrity needed for closed-loop positioning on assembly lines and packaging equipment.
The cable uses a basic hybrid design that groups power, feedback, and auxiliary conductors within one sheath. Its four power cores transmit motor phase current, while the feedback channel uses four AWG 24 signal cores for encoder communication. The cable also includes two 0.5 mm² auxiliary conductors for brake or temperature-sensor circuits. Mechanical durability is rated for up to 5,000,000 bending cycles when the cable is installed in an energy chain and operated within its permitted movement range. During dynamic operation, the minimum bend radius is 7.5 × D, where D represents the cable’s outside diameter. The sheath supports direct routing between the drive and motor, eliminating the need for additional junction boxes and reducing the number of connection points in the machine.
For fixed installation outside moving drag chains, the minimum bend radius is 5 × D, helping prevent conductor fatigue along machine frames and inside stationary cable channels. The stated conductor cross-sectional area is 1.5 mm², providing current-carrying capacity for compact servo-axis applications. Connection at the motor end is made through an M23 hybrid plug, which combines power, encoder, and auxiliary circuits in one twist-lock connector. The cable belongs to the second generation of Rexroth hybrid leads and supports drive systems designed for direct single-cable feedback connections. Its direct-connection arrangement can reduce cable congestion inside the control cabinet while preserving separate internal paths for motor current, feedback data, and auxiliary functions.
