RKL4346 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4346 is part of the RKL Motor Power Cables series and features a PUR matte jacket with an outer diameter of 14.8 mm. This cable supports 5 million bending cycles, a fixed bending radius of 5xD, and is suitable for drag chain use. It includes a power conductor size of 2.5 mm² and an operating voltage of 300/500 V for power circuits.
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Product Description:
The RKL4346 cable is produced by Bosch Rexroth Indramat and belongs to the RKL Motor Power Cables series. It is a pre-assembled power and control lead that links an Indramat drive controller to a compatible servo motor, delivering both three-phase supply and auxiliary control signals in one routed line for moving-axis automation.
This model is rated for 5 Million flex cycles, so it can be placed in continuously moving cable carriers without early conductor fatigue. When laid in a stationary tray it must respect a minimum bend of 5xD, while dynamic motion in a drag chain requires a wider loop of 7.5xD; these radii prevent copper strand fracture and shield delamination. The outer PUR sheath is specified as PUR (adhesion-free, matte); this material resists cutting oils and does not bond to neighbouring cables, simplifying bundle extraction during maintenance. Overall diameter is 14.8 mm, giving designers a clear channel size for carrier cross-section calculations and cabinet bushings. The cable is confirmed as suitable for drag-chain use, and the individual power cores are colour-coded to harmonised standards for quick ohmic verification.
Total loop resistance is controlled by a copper specification of 7.98 Ohm/km at 20 °C; this value helps predict voltage drop over long travel axes. Control pairs use a cross-section of 1.0 mm², while power phases are 2.5 mm² to match motor current demand. The controller end is terminated with an RLS0721 (K03) connector that locks to Rexroth inverter interfaces, whereas the motor end uses an RLS1108 (C03) plug with bayonet latching. Power conductors can carry up to 300/500 V under VDE approval, and the auxiliary cores are limited to 300/300 V for encoder brake logic. Drag-chain certification, oil-resistant PUR, and the paired connector set together create a ready-to-install lead for high-cycle servo axes.
Frequently Asked Questions about RKL4346:
Q: Is the RKL4346 motor power cable suitable for use in drag chains?
A: The RKL4346 is designed for drag chain use, allowing for reliable operation in dynamic applications.
Q: How many bending cycles can the RKL4346 cable withstand during operation?
A: This cable supports up to 5 million bending cycles, providing high durability in moving applications.
Q: What material is used for the outer jacket of the RKL4346 cable?
A: The jacket is made of PUR, which is adhesion-free and matte for improved cable management and durability.
Q: What connector is used on the controller side of the RKL4346 cable?
A: The controller-side connector for this cable is the RLS0721 (K03) model.
Q: What is the power conductor size of the RKL4346 motor power cable?
A: The power conductor size in the RKL4346 cable is 2.5 mm², ensuring safe power transmission.
