RKL4532 by Bosch Rexroth Indramat

The RKL4532 is a motor power cable produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It carries three-phase power and feedback-related auxiliaries between an Indramat drive and its matched servo motor, allowing coordinated motion in automated assembly stations, machine tools, and gantry axes. A composite core arrangement lets both power and control conductors share one flexible jacket, reducing cabinet space and simplifying wiring during installations that involve repeated bending inside cable carriers.

The bulk cable is identified as type INK0603, a designation that matches its internal geometry and insulation system. An outside diameter of 17.0 mm sets the routing clearance required inside drag chains and control panels. Direct-current resistance of 4.95 ?/km across the power trio limits ohmic losses and helps maintain drive voltage over long machine spans. Factory-terminated ends use connector code INS0482/C04, which mates with standard Indramat motor receptacles and ensures strain-relieved shielding transfer. The energized cores follow a 3 + PE topology, providing three symmetrical line conductors plus a protective earth for fault diversion and EMC compliance.

Auxiliary command pairs are dimensioned for device-level I/O. The pair on pins 5-6 uses a cross-section of 1.0 mm², while the pair on pins 7-8 is increased to 1.5 mm² to accommodate higher sensor currents. Line-to-shield capacitance is held to 0.8 nF/m, a low value that minimizes reactive current draw when pulse-width-modulated inverter outputs switch at high carrier frequencies. The outer sheath is molded from PUR (adhesion-free, matte), giving the cable resistance to oils and abrasive contact while allowing continuous motion inside drag chains without sticking to adjacent hoses.