RL2-542DBB by Bosch Rexroth Indramat

The RL2-542DBB cable is produced by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. It is a dedicated motor power lead that links 2nd-generation Rexroth servo motors to their inverters, supplying phase power and low-level control lines in automated assembly cells, packaging equipment, and other motion platforms. The cable supports repeated machine movement while keeping the drive-to-motor connection organized in a single routed assembly.

The cable uses a Basic construction with a total conductor cross-section of 1.5 mm² and follows a 4x L + 4x 0.75 mm² layout that separates power and auxiliary conductors inside the same sheath. A lifetime rating of 5,000,000 bending cycles supports energy-chain service, while the minimum dynamic bend radius is 7.5 x D and the static radius is 5 x D; these limits help prevent conductor damage when the cable is mounted in guides or fixed trays. Copper conductors may reach a maximum temperature of 90 °C without degrading insulation. The assembly remains functional from -30 °C to +80 °C when fixed, and from -20 °C to +60 °C during continuous flexing, allowing installation in refrigerated lines and warm drive cabinets alike.

An insulation resistance of 20 M?/km helps protect low-level signals against leakage currents during operation. The outer jacket is formed from PUR (orange RAL 2003) to resist oil and coolant spray while remaining easy to identify in crowded cable tracks. Power cores are rated for up to 600/1000 V, whereas auxiliary pairs operate at 450/750 V, matching the different electrical demands of motor power and control circuits. It is tailored for 2nd-generation motors and is suitable for repeated motion in industrial robots and gantries.