RL2-003CBT Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RL2-003CBT is a motor power cable from the RL2 Motor Power Cables series. It uses a torsion cable design with a PUR orange jacket and has an outer diameter of 12.2 mm. The cable features a 4x L plus 4x 0.75 mm² configuration, a cross section of 1.0 mm², and a M17 motor connector for second generation motors.
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Product Description:
The RL2-003CBT motor power cable is produced by Bosch Rexroth Indramat and occupies a place in the RL2 Motor Power Cables series. The assembly serves as the dedicated power link between Rexroth second-generation servo motors and their drive amplifiers, carrying three-phase supply current while accommodating continuous twisting in automated equipment. Its mechanical design allows secure routing through cable chains and robot wrists, supporting uninterrupted motion sequences in production cells and conveyor systems.
Power conductors are arranged as 4x L + 4x 0.75 mm², giving separate paths for motor phases and control cores inside the same sheath. Each load core provides an effective section area of 1.0 mm², enabling low-loss transmission of current over typical machine distances. The insulation system maintains a resistance of ≥ 20 MΩ/km, limiting leakage currents that could trigger drive errors or safety faults. During dynamic operation the cable may flex around a radius as small as 7.5xD, letting designers place tight loops without exceeding copper strain limits. An overall diameter of 12.2 mm defines gland selection and permits compact routing through protective energy chains.
The jacket is formed from PUR (Orange RAL 2003), a material and color choice that combine abrasion resistance with quick visual identification in service corridors. Signal integrity on high-frequency inverter outputs is supported by a measured leakage capacitance of 0.4 nF/m, keeping reactive currents within the limits expected by Rexroth drive filters. Termination to the motor is handled through an M17 circular connector that locks with a quarter turn for rapid exchange. Finally, the cable survives cyclical twisting of ±180°/30 cm, matching the torsional demands found on six-axis robots and rotary tables without premature conductor fatigue.
