RKL4321 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4321 is part of the RKL Motor Power Cables series and features a power core configuration of 4 x 2.5 mm² with an overall shield. It is rated for 5,000,000 bending cycles and has a maximum conductor temperature of 80 degrees Celsius. The cable’s outer jacket is orange PUR and supports a minimum bend radius of 7.5 x D for flexible use.
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Product Description:
The RKL4321 is a motor power cable manufactured by Bosch Rexroth Indramat and supplied within the RKL Motor Power Cables series. It is intended for connecting servo or spindle motors to their drives in automated machinery, where a matched combination of power conductors, control pairs, and electromagnetic shielding maintains signal integrity and reduces downtime caused by cable fatigue.
The power circuit is laid out as 4x2.5 mm², delivering balanced three-phase power and protective earth over equal copper sections. Separate feedback or brake functions can be wired through the paired control leads specified as 2x(2x0.75 mm²), keeping low-current signals isolated from motor current. Conductors can rise to 80 °C without insulation degradation, allowing the cable to operate inside motor housings or conduit where elevated temperatures are common. For fixed routing, the sheath may be installed around corners down to a radius of 5 x D; in moving cable chains the minimum dynamic radius is 7.5 x D, protecting the copper strands from cyclic stress.
The outer sheath is colored Orange (RAL 2003) for quick identification of power circuits in multi-cable trays, and the material is a rugged PUR compound that resists oils, coolants, and abrasion. An overall shield constructed of tinned copper braid suppresses radiated noise so that encoder and I/O lines in adjacent cables remain unaffected. Mechanical service life is enhanced by a rating of 5,000,000 torsional or bending cycles, which supports continuous-flex installations on linear gantries, pick-and-place arms, and roll-to-roll processes.
Frequently Asked Questions about RKL4321:
Q: How many bending cycles can the RKL4321 power cable withstand?
A: The RKL4321 cable can handle up to 5,000,000 bending cycles, making it suitable for dynamic motion applications.
Q: What is the power core configuration of the RKL4321 cable model?
A: The power core configuration for the RKL4321 is 4x2.5 mm², supporting stable power transmission for servo motors.
Q: What is the minimum bend radius for the RKL4321 cable in fixed installations?
A: The minimum bend radius for the RKL4321 is 5 times the cable diameter when installed in a fixed position.
Q: What material is used for the outer jacket of the RKL4321 power cable?
A: The outer jacket on the RKL4321 cable is made from PUR, providing resistance to abrasion and chemicals.
Q: Is the RKL4321 cable equipped with an overall shield for signal protection?
A: The overall shield is included on the RKL4321, offering additional protection against electrical interference.
