RKL4423 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4423 is a motor power cable from the RKL Motor Power Cables series. It features a cable construction of 4x6.0mm² plus additional control cores, a conductor resistance of 3.30 Ohm per kilometer, and a discharge capacity of 0.8 nF per meter. The jacket is made of PUR, colored orange (RAL 2003), and is suitable for up to 5 million bending cycles in drag chain applications.
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Product Description:
The RKL4423 motor power cable is manufactured by Bosch Rexroth Indramat and belongs to the RKL Motor Power Cables series. It is specified for feeding three-phase power and auxiliary signals from Rexroth drive amplifiers to synchronous servo motors. The design supports continuous flexing inside energy-chain carriers, so it is applied in pick-and-place modules, gantry axes, and other automated stations that demand reliable moving cabling.
Mechanical durability is indicated by a bending life of 5,000,000 cycles when routed in a drag chain, so the cable maintains insulation integrity during repetitive linear travel. Current conductors follow a composite layout of 4x6.0mm² + (2x1.0mm²)StC + (2x1.5mm²)StC, combining mains phases, a protective earth, and sensor pairs under one sheath. Copper path resistance is 3.30 Ohm/km, a value that defines voltage drop over long runs and assists in drive sizing. Between cores, mutual capacitance is limited to 0.8 nF/m, supporting accurate motor commutation at high switching frequencies. The outer diameter measures 18.5 mm, giving installers clear data for glands, clamps, and circular connectors. The cable is stated as drag-chain suitable and its jacket surface is matte and adhesion-free to minimize friction.
For routing, the minimum static bend radius is 5 x D, while dynamic installation requires 7.5 x D, mitigating conductor fatigue during continuous motion. The jacket is composed of PUR, a material that resists hydraulic oil, coolants, and microbial degradation commonly found in machining cells. Visual identification is improved by the outer color RAL 2003 (Orange), aiding maintenance personnel in tracing motor circuits inside crowded cabinets. The smooth exterior prevents cables from sticking to chain liners or each other and reduces abrasion dust. This construction supports reliable power delivery in gantry robots, palletizers, and indexing tables that operate across multi-shift production schedules.
Frequently Asked Questions about RKL4423:
Q: Is the Bosch Rexroth Indramat RKL4423 power cable designed for use in drag chains?
A: This cable is suitable for use in drag chain applications and supports up to 5,000,000 bending cycles.
Q: What is the jacket material and finish of the RKL4423 cable?
A: The outer jacket of this cable is PUR and has a matte, adhesion-free surface for smooth installation.
Q: What is the minimum bend radius of the RKL4423 cable when used in flexible applications?
A: The minimum bend radius for flexible installation is 7.5 times the cable diameter.
Q: What is the nominal diameter of the Bosch Rexroth Indramat RKL4423 power cable?
A: The nominal diameter of the RKL4423 cable is 18.5 mm, making it suitable for installations that require robust power cables.
Q: What color is the jacket on the Bosch Rexroth Indramat RKL4423 cable?
A: The jacket color for the RKL4423 is RAL 2003, which is orange for identification and safety.
