RHB2-500BBB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RHB2-500BBB is part of the RHB2 Encoder Cables series and is designed as a basic hybrid cable with four power conductors and four signal conductors of AWG24. It features a double-shielded design, M17 hybrid connector, and a dynamic bending radius of 7.5 times the cable diameter.
Internal Product Review
The RHB2-500BBB is a Bosch Rexroth Indramat encoder cable from the RHB2 series, featuring a double-shielded hybrid design for robust signal integrity and power transmission. With a dynamic bending radius of 7.5xD and rated for 5,000,000 bending cycles, this cable is ideal for demanding motion applications. Its reliable operation across a wide temperature range highlights its durability in industrial environments.
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Product Description:
The RHB2-500BBB is an encoder and power combination cable produced by Bosch Rexroth Indramat for the RHB2 Encoder Cables series. This flexible harness connects MS2 servo motors to ctrlX DRIVE amplifiers, carrying drive current and feedback signals within a single sheath to simplify cable routing in industrial automation cells. Combining these functions reduces the number of separate cable runs required between the motor and amplifier. The cable is intended for energy-chain or festoon applications where motion data and power distribution must share limited installation space. Its flexible design accommodates the repeated movement commonly encountered in automated handling, packaging, and processing equipment.
The thermoplastic jacket uses the Basic design, and the assembly follows the cable layout 4x L + 2x 0.5 mm² + 4x AWG 24 – DS. This arrangement combines drive, auxiliary, and encoder cores within one hybrid cable. Each conductor has a cross-sectional area of 0.75 mm², allowing moderate current capacity while keeping the bundle flexible. Continuous-motion service is supported by a dynamic bend radius of 7.5 × D, while fixed installations permit a static bend radius of 5 × D. The cable has a fatigue life of 5,000,000 cycles when used in energy chains. Signal integrity under high inverter switching frequencies is maintained by a double-shielded arrangement that limits common-mode electrical noise. The cable withstands ambient temperatures from -40 to 80 °C, allowing operation in refrigerated processing areas and near high-temperature tooling.
The motor end is terminated with an M17 hybrid connector that combines the required electrical connections in one keyed plug. Compatibility with the MS2(x) motor family and the ctrlX DRIVE platform is supported by pin assignments that follow Rexroth connection conventions. The assembly is classified as a Rexroth cable and carries power, auxiliary voltage, and differential encoder signals beneath one outer braid. Combining these circuits helps reduce panel openings and the number of individual harnesses routed through the machine. A double seal around the connector protects the contact area against coolant splashes and fine dust, helping preserve the electrical connection in industrial environments.
