RL2-003CBT by Bosch Rexroth Indramat

The RL2-003CBT belongs to the RL2 Motor Power Cables series manufactured by Bosch Rexroth Indramat. It is a dedicated motor power lead that links second-generation Rexroth servo drives to their corresponding rotary actuators, carrying three-phase supply and auxiliary lines through a preassembled harness. Within industrial automation, the cable simplifies installation by combining power conductors and feedback wiring inside a single torsion-qualified sheath that supports continuous axis rotation. This combined layout also reduces the number of separate cable runs around moving axes and helps keep routing orderly in compact machine cells.

This model has an outer diameter of 12.2 mm, allowing placement inside standard energy chains without exceeding fill guidelines. Each main conductor has a cross-section of 1.0 mm² and is enclosed in a PUR (Orange RAL 2003) jacket that resists oils, coolants, and abrasion. For fixed routing, the minimum bending radius is 5 × D, while dynamic applications require 7.5 × D to reduce conductor stress during repetitive motion. An insulation resistance of >= 20 M?/km keeps leakage currents low across long runs, which supports accurate drive fault detection and reduces unwanted losses. These features make the cable suitable for installations where repeated flexing and dependable power transmission are both required.

The cable is built for torsional movement, and its core assembly tolerates a twist of ±180°/30 cm without conductor damage, which suits robot wrists and rotary tables. The integrated M17 molded connector provides a secure connection while maintaining the shielding path. A leakage capacitance of 0.4 nF/m reduces reactive load on the drive output filters, helping maintain stable voltage at the motor terminals. Four power leads and four 0.75 mm² signal pairs follow the stated wiring layout, so motor power and auxiliary circuits can be routed through one assembly without adding separate cable runs.