RLC1-126ECB by Bosch Rexroth Indramat

The RLC1-126ECB is a motor power cable produced by Bosch Rexroth Indramat, and it belongs to the RLC1 Motor Power Cables series. This cable delivers electrical power between Indramat servo drives and ML3 motors in automated machinery. By providing a dedicated link from drive to motor, it supports reliable torque generation, synchronized motion, and consistent process accuracy on assembly lines, packaging cells, and material-handling equipment. The cable is intended for dynamic cable track applications where motion axes travel continuously.

Its design life includes 5,000,000 bending cycles, indicating that the conductors and jacket can flex repeatedly in cable chains before fatigue becomes critical. The conductor cross-section is 2.5 mm², so current capacity matches low- to medium-power axes while limiting voltage drop over moderate lengths. Classified as Basic, the cable omits additional shielding layers, reducing outside diameter for compact routing. When the cable moves with machine axes, a dynamic bending radius of 7.5 x D helps prevent internal strand damage, whereas stationary runs may follow a static radius of 5 x D without stressing the insulation. The motor end terminates with an M23 plug with double clamping, providing strain relief and vibration-resistant contact for three-phase power and protective earth.

System compatibility is supported by the cable's IndraDrive controller interface and its pairing with ML3 servo motors, so the cable matches the intended drive and motor combination. The drive side uses a direct connection style, so no intermediate terminal blocks are required and conductor resistance is kept to a minimum. This arrangement reduces connection points, supports stable voltage delivery in continuous duty, and allows predictable routing inside moving drag chains.