RH2-023DBB by Bosch Rexroth Indramat

The RH2-023DBB hybrid encoder cable is manufactured by Bosch Rexroth Indramat for the RH2 Encoder Cables series. In automated production cells, this cable links the drive amplifier to the motor while carrying both power and high-resolution encoder signals, allowing position feedback without a second lead. By integrating these functions, it reduces the number of separate cable runs on conveyor axes, pick-and-place gantries, and compact machining centers. That combined routing is useful where cable carriers have limited space and where a separate feedback cable would add bulk.

Electrically, the cable belongs to the 2nd Generation of Rexroth single-cable technology and is classified as hybrid cables, meaning the motor supply and encoder channels share a common jacket. Four copper conductors with a cross section of 1.5 mm² form the power phase bundle, and the cable includes 4 power cores for that function. Control circuitry uses 2x0.5 mm² auxiliary pairs together with a separate group of signal wires sized at 4 × AWG 24. The conductor layout is 4× L + (2× 0.5 mm²)C + (4× AWG 24)StC, and the cable supports a direct connection from the drive to the motor without intermediate terminal blocks.

Mechanical service life is supported by a dynamic bending radius of 7.5 × D, a static bending radius of 5 × D, and durability of 5,000,000 bending cycles in continuous-flex drag-chain operation. Termination on the motor side uses an M23 Hybrid plug that combines power pins, encoder contacts, and brake leads in one connector shell. The cable uses a basic design with a standard PVC-based outer jacket, and its shielding helps protect differential encoder channels from electromagnetic interference during rapid-cycle industrial motion. This arrangement allows the cable to move with the axis while keeping power, brake, and feedback conductors in a single routed assembly.