RL2-045DBB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RL2-045DBB is part of the RL2 Motor Power Cables series and is designed with a basic cable design that includes four power conductors and four auxiliary wires of 0.75 mm² each. This cable features a PUR orange jacket, supports 5 million bending cycles, and offers a direct motor-drive connection with an M40 power connector.
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Product Description:
The RL2-045DBB is a motor power cable supplied by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. It belongs to the Rexroth Cable product group and is intended for moving-axis installations where repeated flexing is expected. This flexible assembly links second-generation IndraDrive motors directly to their inverters, transferring three-phase power and auxiliary signals without intermediate terminal blocks. In automated machining centers and material-handling lines, the cable carries power and control signals over a single run, reducing cabinet wiring and protecting signal integrity. Its direct routing also eliminates the need for separate terminal connections between the motor and inverter.
The power core consists of four conductors arranged in a 4 × L layout, with each conductor having a 1.5 mm² cross section to limit voltage drop over typical machine lengths. An extruded PUR jacket in orange RAL 2003 resists oil and welding spatter while remaining flexible during repeated movement. During operation, the cable tolerates a dynamic bend radius of 7.5 × D, allowing it to be routed through cable carriers on gantry axes. The power cores are rated for 600/1000 V and are separated from the control conductors by an internal filler system. The cable has a Basic design that uses the standard Rexroth conductor stranding, fillers, and jacket thickness to balance durability and weight while supporting a direct motor-to-drive connection.
The signal group provides four 0.75 mm² auxiliary conductors that carry brake and temperature-sensor circuits from the motor. Continuous cable-carrier operation is supported by a service life of 5 million bending cycles when the required routing conditions are observed. Stationary installations permit a minimum bend radius of 5 × D. A threaded M40 power connector is molded onto the motor end, simplifying installation and sealing the interface against coolant intrusion. For second-generation motors, the pinout follows the Direct Connection arrangement. The auxiliary conductors operate at up to 450/750 V, and the complete cable layout consists of 4 × L power conductors plus four 0.75 mm² auxiliary conductors.
