RL2-066JBB by Bosch Rexroth Indramat

The RL2-066JBB belongs to the RL2 Motor Power Cables series manufactured by Bosch Rexroth Indramat. It is a motor-drive interconnect intended for second-generation Rexroth servo systems, carrying three-phase power from the inverter output directly to the machine-mounted motor without intermediary junction boxes. Its purpose is to deliver motor power with low connection complexity in decentralized machine layouts. In automated lines, the cable sustains continuous current delivery during repetitive motion and supports applications that route the assembly through moving cable carriers.

The conductor set is 6 AWG, and the stranded copper bundle has a cross-sectional area of 16.0 mm². These dimensions support a continuous load of 71.3 A along the cable length. Internally, the construction uses a 4x L + 4x 0.75 mm² layout, which separates the power cores from auxiliary conductors to limit crosstalk in high-frequency switching environments. This arrangement keeps the main motor phases separate from the smaller conductors used for auxiliary functions. The motor side uses an M58 Power Connector, and the opposite end is prepared for direct clamp insertion at the drive so no adapter harness is required. The assembly uses a basic cable design with a standard sheath thickness while still meeting EMC guidelines for servo installations.

Cable carriers in pick-and-place modules can subject the jacket to up to 5,000,000 bending cycles, so the cable maintains a dynamic bending radius of 7.5xD during motion. For stationary routing, the bend radius may be reduced to 5xD without damaging the jacket or conductors. The service temperature range of -30 to 80 °C supports use in freezer installations and high-ambient machine rooms. The same temperature range also applies during storage, so the cable can be kept on spools in unconditioned warehouse spaces.