RKL4339 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4339 is part of the RKL Motor Power Cables series. This cable features 4x10.0 mm² power conductors and 2x1.0 mm² plus 2x1.5 mm² aux or brake conductors. It has a PUR matt jacket, supports an operating voltage of 600 V AC, and can endure up to 5,000,000 bending cycles.
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Product Description:
The RKL4339 is a motor power cable produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It forms the fixed link between Indramat servo drives and synchronous motors, carrying three-phase power and brake supply in one sheath to speed installation. The assembly is built for automation cells that demand predictable electrical behaviour while enduring continual motion in cable tracks. It ships pre-terminated with keyed circular connectors that match Rexroth motors, ensuring correct polarity and strain relief. Integrating brake cores within the same jacket also reduces panel space and simplifies routing in multi-axis gantries.
The cable contains four power cores sized 4x10.0 mm², giving it a continuous current capacity suited to medium-frame motors operating up to 600 V AC (UL). Line-to-line capacitance is specified at 1.0 nF/m; this low value limits reactive current in long runs and eases drive tuning. Mechanical flexibility is defined by a dynamic bending radius of 7.5xD, allowing tight installation inside energy chains without violating manufacturer limits. Endurance under motion is verified for 5,000,000 bending cycles, supporting high-duty gantry axes. The bulk cable designation INK0605 and a DC conductor resistance of 1.91 Ω/km further quantify voltage drop behavior.
During static routing, minimum bend reduction improves, as the cable may rest at a radius of 5xD without imposing compressive stress on the PUR insulation. The overall diameter is 22.2 mm, so standard 25 mm cable glands can be selected for strain relief. A matte PUR (matt) jacket offers oil and coolant resistance while adding abrasion protection needed in machining centers. Factory-installed connector A, the motor side RLS1301/C10, mates with MSK and similar motors; the opposite end uses matching RLS1302/C10 for drive cabinet terminations. Two auxiliary cores of 1.0 mm² and two brake cores of 1.5 mm² provide separate control circuits without external looms.
Frequently Asked Questions about RKL4339:
Q: What is the operating voltage of the RKL4339 motor power cable?
A: The RKL4339 motor power cable is rated for an operating voltage of 600 V AC under UL standards.
Q: How many dynamic bending cycles can the RKL4339 cable withstand?
A: This cable supports up to 5,000,000 bending cycles, making it suitable for dynamic applications requiring frequent motion.
Q: What is the size and number of power conductors in the RKL4339 cable?
A: The RKL4339 includes 4 power conductors with a cross-section of 10.0 mm² each.
Q: What material is used for the outer jacket of the RKL4339 cable?
A: The jacket on the RKL4339 cable is made from matt PUR, providing mechanical durability.
Q: Which types of connectors are fitted to the RKL4339 motor power cable?
A: Connector 1 used on this cable is the RLS1301/C10 model, and Connector 2 is the RLS1302/C10 model.
