RKL4486 by Bosch Rexroth Indramat

Bosch Rexroth Indramat's RKL4486 belongs to the RKL Motor Power Cables series and serves as the power link between drive controllers and synchronous servo motors in automated machinery. The cable carries three phase lines, a protective conductor, auxiliary cores, and signal pairs inside a single sheath, allowing high-current supply and low-level sensing in one routed assembly. This arrangement helps reduce cable clutter, supports orderly routing through moving machine sections, and keeps power and auxiliary connections together along the same path.

The cable contains 8 conductors arranged around a filler that helps limit core migration during motion. Each power core has a copper cross-section of 4.0 mm², while two auxiliary conductors use 1.0 mm² for functions such as brake release or thermal monitoring. A twisted pair for encoder reference uses 1.5 mm² to reduce voltage drop over longer runs. The outer diameter is 17.0 mm, which helps the cable fit standard energy chains without requiring excessive space. Its capacitance is 0.8 nF/m, which helps limit reactive current during switching and supports stable operation with compatible drive systems.

The copper conductors have a DC resistance of 4.95 ?/km, helping keep voltage loss within normal servo operating limits over typical machine distances. The PUR jacket is rated for 5,000,000 flex cycles in continuous-motion cable tracks, and the cable can be bent to a moving radius of 7.5 × D; fixed installation permits a tighter bend when the cable is secured in place. Its matte, adhesion-free orange surface improves visibility and helps prevent sticking inside chain channels. The jacket material also resists cuts and supports use in areas where abrasion and contact with debris may occur. Cable ends are sized for Terminal Box Size 2 connectors used with the MSK and MAD motor families, allowing direct termination without field splicing.