Product Description:

The RL2-043DBB is a motor power cable produced by Bosch Rexroth Indramat for the RL2 Motor Power Cables series. It connects second-generation Rexroth servo motors to matched drives and transfers both power and low-level signals needed for closed-loop control within automated machinery. The cable uses the basic design format common to short cabinet runs and drag-chain sections in fixed or occasionally moving machine zones. It is intended for applications where one cable assembly must carry motor power and auxiliary conductors together.

This model employs the conductor set 4x L + 4x 0.75 mm², giving four power cores and four smaller signal cores. Each power core has a cross-section of 1.5 mm², allowing continuous transmission of three-phase current up to the specified load without excessive heating. Power conductors are rated for 600/1000 V, while the signal conductors are limited to 450/750 V to protect connected electronics. A minimum insulation resistance of 20 MΩ/km supports low leakage over long cable trays, and each conductor is insulated in PP to tolerate surface temperatures up to 90 °C during permanent installation. The minimum service temperature in fixed routing is -30 °C, so the cable can still be energized after cold overnight shutdowns in unheated facilities.

The outer jacket is made from PUR, giving abrasion resistance against sharp panel edges and lubricants. When clamped without motion, the bend radius should not fall below 5 × D. During flex cycles, the bend radius increases to 7.5 × D to reduce conductor fatigue. Thermal limits are 80 °C for fixed routing and 60 °C for dynamic chains, helping maintain jacket elasticity and insulation integrity during repeated movement. The flexible minimum temperature is -20 °C, so the cable can still bend in colder moving applications. The pinout matches second-generation motor connections used with compatible Rexroth systems.