Rexroth RKL4328/0750 Servo Motor Power Cable Unit

Module Feature

RKL4328/0750 is a factory terminated servo power cable of Rexroth RKL series, length 7.5 meter, compatible with IndraDrive servo system. It adopts overall copper braided shield structure, PUR halogen-free outer sheath, resistant to cutting fluid, lubricating oil, hydrolysis and microbial erosion. High flex cycle design for moving drag chain installation. Both ends are pre-fitted with matching metal servo power connectors, no additional crimping required. Strict EMC shielding design suppresses PWM high-frequency interference. Widely stocked as maintenance spare for CNC machine, packaging, textile and metal forming motion equipment.

Working principleConductors transmit three-phase power and brake signal from servo amplifier to servo motor. Overall shield layer drains high-frequency noise current to ground, reduces electromagnetic radiation and external interference. PUR jacket and stranded conductor structure withstand repeated bending, vibration and harsh coolant environment.

Onboard componentsMulti-stranded tinned copper power conductors, brake wire, copper braid overall shield, PUR outer sheath, metal circular servo connectors, sealing gaskets and strain relief.

LED indicatorsNot applicable, passive cable assembly.

Hardware self‑diagnosisInspect insulation resistance, shield continuity, connector pin continuity and jacket damage.

Programming softwareNot applicable.

Electrical & Process Parameters

Model:RKL4328/0750 Brand:Bosch Rexroth Device type:Pre-assembled servo motor power cable Function:Power and brake signal transmission between IndraDrive servo drive and IndraDyn servo motor

Mechanical & StructureMounting:Drag chain / cable tray routing Protection class:IP67 when mated Housing:PUR flexible cable jacket + metal connector housing

EnvironmentalOperating temperature:-20℃ ~ +80℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, UL, flame retardant, oil resistant Status:Original Rexroth motion cable spare

InstallationPower off drive and motor before replacement. Avoid sharp bending and tension overload, keep shield ground connection reliable, match connector keyway, check insulation and motor movement after commissioning.

InterfaceServo drive side power connector, servo motor side power connector.

DiagnosticMotor overcurrent / unstable running: Shield broken, core wire intermittent open. Leakage and insulation alarm: Jacket scratch, coolant penetration. No brake function: Brake wire open circuit.

Product BriefRKL4328/0750 cable, Rexroth 7.5m pre-terminated shielded servo power cable spare for IndraDrive CNC and high-speed